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Table of Contents

Cisco Modular Access Router
Cable Specifications

Cisco Modular Access Router
Cable Specifications

This document provides cable specifications for Cisco 3600 series and Cisco 2600 series routers.

Use this document in conjunction with the following publications:

This document includes:
Note All pins not listed in the tables in this document are not connected.

If you prefer to order cables, see your router installation guide.

Warning Conventions

Warning   This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Waarschuwing  Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.

Varoitus  Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).

Attention  Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.

Warnung  Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.

Avvertenza  Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.

Advarsel  Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.

Aviso  Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.

¡Advertencia!  Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.

Varning!  Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. Se förklaringar av de varningar som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.

Console and Auxiliary Port Signals and Pinouts

Your router comes with a console and auxiliary cable kit, which contains the cable and adapters you need to connect a console terminal (an ASCII terminal or PC running terminal emulation software) or modem to your router. The console and auxiliary cable kit includes the following items:

For console connections, proceed to the "Console Port Signals and Pinouts" section; for modem connections, proceed to the "Auxiliary Port Signals and Pinouts" section.

Console Port Signals and Pinouts

Use the thin, flat, RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-9 female DTE adapter (labeled "TERMINAL") to connect the console port to a PC running terminal emulation software. Figure 1 shows how to connect the console port to a PC. Table 1 lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL).


Figure 1: Connecting the Console Port to a PC



Table 1: Console Port Signaling and Cabling Using a DB-9 Adapter
Console Port (DTE) RJ-45-to-RJ-45 Rollover Cable RJ-45-to-DB-9 Terminal Adapter (connected to Rollover Cable) Console Device
Signal RJ-45 Pin RJ-45 Pin DB-9 Pin Signal

RTS

11

8

8

CTS

DTR

2

7

6

DSR

TxD

3

6

2

RxD

GND

4

5

5

GND

GND

5

4

5

GND

RxD

6

3

3

TxD

DSR

7

2

4

DTR

CTS

81

1

7

RTS
1Pin 1 is connected internally to pin 8

Table 2 lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL).


Table 2: Console Port Signaling and Cabling Using a DB-25 Adapter
Console Port (DTE)1 RJ-45-to-RJ-45 Rollover Cable RJ-45-to-DB-25 Terminal Adapter Console Device
Signal RJ-45 Pin RJ-45 Pin DB-25 Pin Signal

RTS

12

8

5

CTS

DTR

2

7

6

DSR

TxD

3

6

3

RxD

GND

4

5

7

GND

GND

5

4

7

GND

RxD

6

3

2

TxD

DSR

7

2

20

DTR

CTS

81

1

4

RTS
1You can use the same cabling to connect a console to the auxiliary port
2Pin 1 is connected internally to pin 8

Auxiliary Port Signals and Pinouts

Table 3 lists the pinouts for the asynchronous serial auxiliary port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 male DCE adapter (labeled MODEM).


Table 3: Auxiliary Port Signaling and Cabling Using a DB-25 Adapter
Auxiliary Port (DTE) RJ-45-to-RJ-45 Roll-Over Cable RJ-45-to-DB-25 Modem Adapter Modem
Signal RJ-45 Pin RJ-45 Pin DB-25 Pin Signal

RTS

11

8

4

RTS

DTR

2

7

20

DTR

TxD

3

6

3

TxD

GND

4

5

7

GND

GND

5

4

7

GND

RxD

6

3

2

RxD

DSR

7

2

8

DCD

CTS

81

1

5

CTS
1Pin 1 is connected internally to pin 8.

You can identify a rollover cable by comparing the modular plugs at the two ends of the cable. When you hold the plugs side by side, with the tab at the back, the wire connected to the pin on the outside of the left plug should be the same color as the wire connected to the pin on the outside of the right plug. (See Figure 2.) If you purchased your cable from Cisco Systems, pin 1 is white on one connector, and pin 8 is white on the other (a rollover cable connects pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).


Figure 2: Identifying a Rollover Cable


Ethernet Cable Pinouts

This section describes the following:

Ethernet AUI Cable Pinouts

Figure 3 shows the Ethernet (AUI) cable assembly and Table 4 lists the pinouts.


Figure 3: Ethernet (AUI) Cable Assembly



Table 4: Ethernet (AUI) Pinouts
Pin Ethernet Circuit Signal Name

3

DO-A

Data Out Circuit A

10

DO-B

Data Out Circuit B

11

DO-S

Data Out Circuit Shield

5

DI-A

Data In Circuit A

12

DI-B

Data In Circuit B

4

DI-S

Data In Circuit Shield

7

CO-A

Control Out Circuit A (not connected)

15

CO-B

Control Out Circuit B (not connected)

8

CO-S

Control Out Circuit Shield (not connected)

2

CI-A

Control In Circuit A

9

CI-B

Control In Circuit B

1

CI-S

Control In Circuit Shield

6

VC

Voltage Common

13

VP

Voltage Plus

14

VS

Voltage Shield (L25 and M25)

Shell

PG

Protective Ground

10BaseT Connector Pinouts

Figure 4 shows the 10BaseT connector (RJ-45) and Table 5 lists its pinouts.


Figure 4: 10BaseT Connector (RJ-45)



Table 5: 10BaseT Connector (RJ-45) Pinouts
Pin1 Description

1

TX+

2

TX-

3

RX+

4

-

5

-

6

RX-

7

-

8

-
1Any pin not described is not connected

Fast Ethernet Connector Pinouts

This section illustrates the Fast Ethernet 100BaseTX (RJ-45) connector and lists its pinout and signal descriptions.

Figure 5 shows the 100BaseTX RJ-45 connector, and Table 6 lists its pinout. The 1-port Fast Ethernet network module RJ-45 port actively terminates wire pair 4 and 5 and wire pair 7 and 8. Common-mode termination reduces electromagnetic interference (EMI) and susceptibility to common-mode sources.


Figure 5: 100BaseTX RJ-45 Connector



Table 6: RJ-45 Connector Pinout
Pin Signal

1

TX+

2

TX-

3

RX+

6

RX-

Token Ring Port Pinouts

The 1E1R 2-slot module provides both UTP and STP Token Ring connections described in:

The IEEE has established Token Ring as standard IEEE 802.5. The distance limitations for the IEEE 802.5 specification indicate a maximum segment distance of 328 feet (100 meters) for UTP cabling. The distance limitation is 1,640 feet (500 meters) for STP cabling.

Note To ensure agency compliance with FCC Class B electromagnetic emissions requirements (EMI), make sure that you use the shielded RJ-45 Token Ring cable when connecting your router to the Token Ring network.

Token Ring can operate at two different ring speeds: 4 and 16 Mbps. All devices on the ring must use the same operating speed.

Only one Token Ring port can be used at a time. The module will automatically detect which port, STP or UTP, is in use. Use the provided Token Ring cable to connect the router to a switch.

Token Ring STP Connector Pinouts

Table 7 shows the Token Ring STP port pinouts used by the 1E1R 2-slot module.


Table 7: Token Ring STP Port (DB-9) Pinouts
9-Pin Signal Name

1

RX-

2

Ground

3

+5 Volt, fused

4

Ground

5

TX-

6

+RX

7

Ground

8

Ground

9

+TX

Token Ring UTP Connector Pinouts

Table 8 shows the Token Ring UTP port pinouts used by the 1E1R 2-slot module.


Table 8: Token Ring UTP Port (DB-9) Pinouts
RJ-45 Pins Signal

1

GND

2

GND

3

TX

4

RX

5

TX

6

RX

7

GND

8

-

ISDN BRI Interface

This section contains the following topics:

Warning Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF.

ISDN BRI Connections

Warning The ISDN connection is regarded as a source of voltage that should be inaccessible to user contact. Do not attempt to tamper with or open any public telephone operator (PTO)-provided equipment or connection hardware. Any hardwired connection (other than by a nonremovable, connect-one-time-only plug) must be made only by PTO staff or suitably trained engineers.

Use a BRI cable (not included) to connect the BRI WAN interface card directly to an ISDN. Table 9 lists the specifications for ISDN BRI cables.


Table 9: ISDN BRI Cable Specifications
Specification High-Capacitance Cable Low-Capacitance Cable

Resistance (at 96 kHz)

160 ohms/km

160 ohms/km

Capacitance (at 1 kHz)

120 nF1/km

30 nF/km

Impedance (at 96 kHz)

75 ohms

150 ohms

Wire diameter

0.024" (0.6 mm)

0.024" (0.6 mm)

Distance limitation

32.8' (10 m)

32.8' (10 m)

1nF=nanoFarad

ISDN BRI Pinouts

Table 10 lists the connector signals and pinouts for the ISDN BRI S/T card. Table 11 lists the connector signals and pinouts for the ISDN BRI U card.

Caution To prevent damage to the system, make certain you connect the BRI cable to the BRI connector only and not to any other RJ-45 connector.

)
Table 10: ISDN BRI S/T Port Signals and Pinouts (RJ-45
8 Pin1 TE2 NT3 Polarity

3

TX

RX

+

4

RX

TX

+

5

RX

TX

-

6

TX

RX

-
1Pins 1, 2, 7, and 8 are not used
2TE refers to terminal terminating layer 1 aspects of TE1, TA, and NT functional groups (this applies to the ISDN BRI S/T WAN interface card)
3NT refers to network terminating layer 1 aspects of NT1 and NT2 functional groups

)
Table 11: ISDN BRI U Port Signals and Pinouts (RJ-45)
8 Pin1 Function

3

No connection

4

Signal--Tip or Ring

5

Signal--Tip or Ring

6

No connection
1Pins 1, 2, 7, and 8 are not used.

CT1/PRI Pinouts

Two standard T1 serial cables are available for the CT1/PRI module: null-modem and straight-through. A straight-through cable connects the router to an external CSU. Null-modem cables are used for back-to-back operation and testing.

The T1 interface cable has two 15-pin DB connectors at each end to connect the CT1/PRI with the external T1 CSU. Figure 6 shows the T1 interface cable, connectors, and pinouts. Table 12 lists the pinouts for the null-modem T1 cable and Table 13 lists the pinouts for the straight-through T1 cable.

Warning Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF.

Figure 6: T1 Interface Cable



Table 12: Null-Modem T1 Cable Pinouts
15-Pin DB Connector 15-Pin DB Connector
Signal Pin Pin Signal

Transmit Tip

1

3

Receive Tip

Receive Tip

3

1

Transmit Tip

Transmit Ring

9

11

Receive Ring

Receive Ring

11

9

Transmit Ring


Table 13: Straight-Through T1 Cable Pinouts
15-Pin DB Connector 15-Pin DB Connector
Signal Pin Pin Signal

Transmit Tip

1

1

Transmit Tip

Transmit Ring

9

9

Transmit Ring

Receive Tip

3

3

Receive Tip

Receive Ring

11

11

Receive Ring

CT1/PRI-CSU Pinouts

Table 14 lists the CT1/PRI-CSU module port pinouts. Use a straight-through RJ-48C-to-RJ-48C cable to connect the T1 port to an RJ-48C jack.


Table 14: CT1/PRI-CSU Module Port (RJ-48C) Pinouts
RJ-48C Pin Description

1

Receive Ring

2

Receive Tip

4

Ring

5

Tip

CE1/PRI Interface

This section contains the following topics:

CE1/PRI Cables

Cisco Systems makes four cables for the CE1/PRI modules. All four have DB-15 connectors on the CE1/PRI end and either BNC, DB-15, Twinax, or RJ-45 connectors on the network end. Figure 7 through Figure 10 show the CE1/PRI interface cables.


Figure 7: E1 Interface Cable for 75-Ohm, Unbalanced Connections with BNC Connectors



Figure 8: E1 Interface Cable for 120-Ohm, Balanced Connections with DB-15 Connectors



Figure 9: E1 Interface Cable for 120-Ohm, Balanced Connections with Twinax Connectors



Figure 10: E1 Interface Cable for 120-Ohm, Balanced Connections with an RJ-45 Connector


CE1/PRI Pinouts

Table 15 lists pinouts for the CE1/PRI interface cables.


Table 15: E1 Interface Cable Pinouts
CE1/PRI End Network End
DB-15 BNC DB-15 Twinax RJ-45
Pin Signal Signal Pin Signal Pin Signal Pin Signal

9

TX Tip

TX Tip

1

TX Tip

TX-1

TX Tip

1

TX Tip

2

TX Ring

TX Shield

9

TX Ring

TX-2

TX Ring

2

TX Ring

10

TX Shield

-

2

TX Shield

Shield

TX Shield

3

TX Shield

8

RX Tip

RX Tip

3

RX Tip

RX-1

RX Tip

4

RX Tip

15

RX Ring

RX Shield

11

RX Ring

RX-2

RX Ring

5

RX Ring

7

RX Shield

-

4

RX Shield

Shield

RX Shield

6

RX Shield

56/64-Kbps DSU/CSU Signals and Pinouts

Switched 56-kbps connections are provided by the 56-kbps DSU/CSU WAN interface card. For more information, see the publication Network Modules Hardware Installation Guide.

Warning Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF.

Table 16 lists the 56/64-kbps DSU/CSU connector signals and pinouts.


Table 16: 56/64-Kbps DSU/CSU (RJ-48S) Signals and Pinouts
8 Pin1 Description

1

Transmit Ring

2

Transmit Tip

7

Receive Tip

8

Receive Ring
1Pins 3, 4, 5, and 6 are not used.

T1/E1 Trunk and Digital Voice Port Pinouts (RJ-48)

Figure 11 shows the RJ-48 connector wiring for the T1/E1 trunk cable and the digital voice port cable; Table 17 lists the pinouts.


Figure 11: RJ-48-to-RJ-48 T1/E1 Cable Wiring



Table 17: Pinouts for T1/E1 Trunk and Digital Voice Port (RJ-48)
Pin1 Signal

1

RX (input)

2

RX (input)

3

-

4

TX (output)

5

TX (output)

6

-

7

-

8

-

1Any pin not referenced on a connector is not connected.

Serial Connection Signals and Pinouts

This section provides information about the 1-port serial WAN interface card. With the appropriate serial transition cable, this card can provide an EIA/TIA-232, EIA/TIA-449, V.35, X.21, DTE/DCE, EIA-530 DTE, or NRZ/NRZI serial interface.

Types of Serial Cables

Six types of serial cables (also called serial adapter cables or serial transition cables) are available from Cisco Systems:

All serial cables provide a universal plug at the interface card end. The network end of each cable provides the physical connectors most commonly used for the interface. For example, the network end of the EIA/TIA-232 serial cable is a DB-25 connector, the most widely used EIA/TIA-232 connector.

All serial interface types except EIA-530 are available in DTE or DCE format: DTE with a plug connector (male) at the network end and DCE with a receptacle (female) at the network end. V.35 is available in either mode with either gender at the network end. EIA-530 is available in DTE only.

Connecting the Card to the Network

Note The serial WAN interface card uses a universal high-density, 60-pin receptacle. Each universal port requires a serial port adapter cable that determines the port's electrical interface type and mode: DTE or DCE. Although all port adapter cables use a universal plug at the quad serial module end, the network end of each cable type uses the physical connectors commonly used for the interface. (For example, the network end of the EIA/TIA-232 port adapter cable is a DB-25 connector, the most widely used EIA/TIA-232 connector.)

After you install the serial WAN interface card, use the appropriate serial cable to connect the interface card's DB-60 serial port to one of the following types of equipment:

EIA/TIA-232 Interface

This section contains the following topics:

EIA/TIA-232 Connections

EIA/TIA-232 supports unbalanced circuits at signal speeds up to 64 kbps. The network end of the adapter cable is a standard 25-pin D-shell connector known as a DB-25. (See Figure 12.) The router console and auxiliary ports also use EIA/TIA-232 connections; however, the serial module ports support synchronous connections, and the console and auxiliary ports support asynchronous connections.


Figure 12: EIA/TIA-232 Adapter Cable Connectors, Network End


EIA/TIA-232 Serial Cable Assembly

Figure 13 shows the EIA/TIA-232 serial cable assembly. Table 18 lists the DTE pinout and Table 19 lists the DCE pinout. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Figure 13: EIA/TIA-232 Cable Assembly



Table 18: EIA/TIA-232 DTE Cable Pinout (DB-60 to DB-25)
60-Pin Signal Note Direction 25-Pin Signal

J1-50
J1-51
J1-52

MODE_0
GND
MODE_DCE

Shorting group

-

-

-

J1-46

Shield GND

Single

-

J2-1

Shield GND

J1-46

Shield GND

Single

-

J2-1

Shield GND

J1-41
Shield

TXD/RXD
-

Twisted pair no. 5

-->
-

J2-2
Shield

TXD
-

J1-36
Shield

RXD/TXD
-

Twisted pair no. 9

<--
-

J2-3
Shield

RXD
-

J1-42
Shield

RTS/CTS
-

Twisted pair no. 4

-->
-

J2-4
Shield

RTS
-

J1-35
Shield

CTS/RTS
-

Twisted pair no. 10

<--
-

J2-5
Shield

CTS
-

J1-34
Shield

DSR/DTR
-

Twisted pair no. 11

<--
-

J2-6
Shield

DSR
-

J1-45
Shield

Circuit GND
-

Twisted pair no. 1

-
-

J2-7
Shield

Circuit GND
-

J1-33
Shield

DCD/LL
-

Twisted pair no. 12

<--
-

J2-8
Shield

DCD
-

J1-37
Shield

TXC/NIL
-

Twisted pair no. 8

<--
-

J2-15
Shield

TXC
-

J1-38
Shield

RXC/TXCE
-

Twisted pair no. 7

<--
-

J2-17
Shield

RXC
-

J1-44
Shield

LL/DCD
-

Twisted pair no. 2

-->
-

J2-18
Shield

LTST
-

J1-43
Shield

DTR/DSR
-

Twisted pair no. 3

-->
-

J2-20
Shield

DTR
-

J1-39
Shield

TXCE/TXC
-

Twisted pair no. 6

-->
-

J2-24
Shield

TXCE
-


Table 19: EIA/TIA-232 DCE Cable Pinout (DB-60 to DB-25)
60-Pin Signal Note Direction 25-Pin Signal

J1-50
J1-51

MODE_0
GND

Shorting group

-

-

-

J1-36
Shield

RXD/TXD
-

Twisted pair no. 9

<--
-

J2-2
Shield

TXD
-

J1-41
Shield

TXD/RXD
-

Twisted pair no. 5

-->
-

J2-3
Shield

RXD
-

J1-35
Shield

CTS/RTS
-

Twisted pair no. 10

<--
-

J2-4
Shield

RTS
-

J1-42
Shield

RTS/CTS
-

Twisted pair no. 4

-->
-

J2-5
Shield

CTS
-

J1-43
Shield

DTR/DSR
-

Twisted pair no. 3

-->
-

J2-6
Shield

DSR
-

J1-45
Shield

Circuit GND
-

Twisted pair no. 1

-
-

J2-7
Shield

Circuit GND

J1-44
Shield

LL/DCD
-

Twisted pair no. 2

-->
-

J2-8
Shield

DCD
-

J1-39
Shield

TXCE/TXC
-

Twisted pair no. 7

-->
-

J2-15
Shield

TXC
-

J1-40
Shield

NIL/RXC
-

Twisted pair no. 6

-->
-

J2-17
Shield

RXC
-

J1-33
Shield

DCD/LL
-

Twisted pair no. 12

<--
-

J2-18
Shield

LTST
-

J1-34
Shield

DSR/DTR
-

Twisted pair no. 11

<--
-

J2-20
Shield

DTR
-

J1-38
Shield

RXC/TXCE
-

Twisted pair no. 8

<--
-

J2-24
Shield

TXCE
-

EIA/TIA-449 Interface

This section contains the following topics:

EIA/TIA-449 Connections

EIA/TIA-449, which supports balanced (EIA/TIA-422) and unbalanced (EIA/TIA-423) transmissions, is a faster (up to 2 Mbps) version of EIA/TIA-232 that provides more functions and supports transmissions over greater distances.

The EIA/TIA-449 standard was intended to replace the EIA/TIA-232 standard, but it was not widely adopted primarily because of the large installed base of DB-25 hardware and because of the larger size of the 37-pin EIA/TIA-449 connectors, which limited the number of connections possible (fewer than possible with the smaller, 25-pin EIA/TIA-232 connector).

The network end of the EIA/TIA-449 adapter cable provides a standard 37-pin D-shell connector. (See Figure 14.) EIA/TIA-449 cables are available as either DTE (DB-37 plug) or DCE (DB-37 receptacle).


Figure 14: EIA/TIA-449 Adapter Cable Connectors, Network End


EIA/TIA-449 Serial Cable Assembly

Figure 15 shows the EIA/TIA-449 serial cable assembly. Table 20 lists the DTE pinout and Table 21 lists the DCE pinout. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Figure 15: EIA/TIA-449 Serial Cable Assembly



Table 20: EIA/TIA-449 DTE Cable Pinout (DB-60 to DB-37)
60-Pin Signal Name Note Direction 37-Pin Signal Name

J1-49
J1-48

MODE_1
GND

Shorting group

-

-

-

J1-51
J1-52

GND
MODE_DCE

Shorting group

-

-

-

J1-46

Shield_GND

Single

_

J2-1

Shield GND

J1-11
J1-12

TXD/RXD+
TXD/RXD-

Twisted pair no. 6

-->
-->

J2-4
J2-22

SD+
SD-

J1-24
J1-23

TXC/RXC+
TXC/RXC-

Twisted pair no. 9

<--
<--

J2-5
J2-23

ST+
ST-

J1-28
J1-27

RXD/TXD+
RXD/TXD-

Twisted pair no. 11

<--
<--

J2-6
J2-24

RD+
RD-

J1-9
J1-10

RTS/CTS+
RTS/CTS-

Twisted pair no. 5

-->
-->

J2-7
J2-25

RS+
RS-

J1-26
J1-25

RXC/TXCE+
RXC/TXCE-

Twisted pair no. 10

<--
<--

J2-8
J2-26

RT+
RT-

J1-1
J1-2

CTS/RTS+
CTS/RTS-

Twisted pair no. 1

<--
<--

J2-9
J2-27

CS+
CS-

J1-44
J1-45

LL/DCD
Circuit_GND

Twisted pair no. 12

-->
_

J2-10
J2-37

LL
SC

J1-3
J1-4

DSR/DTR+
DSR/DTR-

Twisted pair no. 2

<--
<--

J2-11
J2-29

DM+
DM-

J1-7
J1-8

DTR/DSR+
DTR/DSR-

Twisted pair no. 4

-->
-->

J2-12
J2-30

TR+
TR-

J1-5
J1-6

DCD/DCD+
DCD/DCD-

Twisted pair no. 3

<--
<--

J2-13
J2-31

RR+
RR-

J1-13
J1-14

TXCE/TXC+
TXCE/TXC-

Twisted pair no. 7

-->
-->

J2-17
J2-35

TT+
TT-

J1-15
J1-16

Circuit_GND
Circuit_GND

Twisted pair no. 9

-
-

J2-19
J2-20

SG
RC


Table 21: EIA/TIA-449 DCE Cable Pinout (DB-60 to DB-37)
60-Pin Signal Name Note Direction 37-Pin Signal Name

J1-49
J1-48

MODE_1
GND

Shorting group

-

-

-

J1-46

Shield_GND

Single

-

J2-1

Shield GND

J1-28
J1-27

RXD/TXD+
RXD/TXD-

Twisted pair no. 11

<--
<--

J2-4
J2-22

SD+
SD-

J1-13
J1-14

TXCE/TXC+
TXCE/TXC-

Twisted pair no. 7

-->
-->

J2-5
J2-23

ST+
ST-

J1-11
J1-12

TXD/RXD+
TXD/RXD-

Twisted pair no. 6

-->
-->

J2-6
J2-24

RD+
RD-

J1-1
J1-2

CTS/RTS+
CTS/RTS-

Twisted pair no. 1

<--
<--

J2-7
J2-25

RS+
RS-

J1-24
J1-23

TXC/RXC+
TXC/RXC-

Twisted pair no. 9

-->
-->

J2-8
J2-26

RT+
RT-

J1-9
J1-10

RTS/CTS+
RTS/CTS-

Twisted pair no. 5

-->
-->

J2-9
J2-27

CS+
CS-

J1-29
J1-30

NIL/LL
Circuit_GND

Twisted pair no. 12

-->
-

J2-10
J2-37

LL
SC

J1-7
J1-8

DTR/DSR+
DTR/DSR-

Twisted pair no. 4

-->
-->

J2-11
J2-29

DM+
DM-

J1-3
J1-4

DSR/DTR+
DSR/DTR-

Twisted pair no. 2

<--
<--

J2-12
J2-30

TR+
TR-

J1-5
J1-6

DCD/DCD+
DCD/DCD-

Twisted pair no. 3

-->
-->

J2-13
J2-31

RR+
RR-

J1-26
J1-25

RXC/TXCE+
RXC/TXCE-

Twisted pair no. 10

<--
<--

J2-17
J2-35

TT+
TT-

J1-15
J1-16

Circuit_GND
Circuit_GND

Twisted pair no. 8

_
_

J2-19
J2-20

SG
RC

V.35 Interface

This section contains the following topics:

V.35 Connections

The V.35 interface is recommended for speeds up to 48 kbps, although in practice it is used successfully at 4 Mbps.

The network end of the V.35 adapter cable provides a standard 34-pin Winchester-type connector. (See Figure 16.) V.35 cables are available with a standard V.35 plug or receptacle in either DTE or DCE mode.


Figure 16: V.35 Adapter Cable Connectors, Network End


V.35 Serial Cable Assembly

Figure 17 shows the V.35 serial cable assembly. Table 22 lists the DTE pinout and Table 23 lists the DCE pinout. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Figure 17: V.35 Serial Cable Assembly



Table 22: V.35 DTE Cable Pinout (DB-60 to Winchester-Type 34-Pin)
60-Pin Signal Name Type Direction 34-Pin Signal Name

J1-49
J1-48

MODE_1
GND

Shorting group

-

-

-

J1-50
J1-51
J1-52

MODE_0
GND
MODE_DCE

Shorting group

-

-

-

J1-53
J1-54
J1-55
J1-56

TxC/NIL
RxC_TxCE
RxD/TxD
GND

Shorting group

-

-

-

J1-46

Shield_GND

Single

-

J2-A

Frame GND

J1-45
Shield

Circuit_GND
-

Twisted pair no. 12

-
-

J2-B
Shield

Circuit GND
-

J1-42
Shield

RTS/CTS
-

Twisted pair no. 9

-->
-

J2-C
Shield

RTS
-

J1-35
Shield

CTS/RTS
-

Twisted pair no. 8

<--
-

J2-D
Shield

CTS
-

J1-34
Shield

DSR/DTR
-

Twisted pair no. 7

<--
-

J2-E
Shield

DSR
-

J1-33
Shield

DCD/LL
-

Twisted pair no. 6

<--
-

J2-F
Shield

RLSD
-

J1-43
Shield

DTR/DSR
-

Twisted pair no. 10

-->
-

J2-H
Shield

DTR
-

J1-44
Shield

LL/DCD
-

Twisted pair no. 11

-->
-

J2-K
Shield

LT
-

J1-18
J1-17

TxD/RxD+
TxD/RxD-

Twisted pair no. 1

-->
-->

J2-P
J2-S

SD+
SD-

J1-28
J1-27

RxD/TxD+
RxD/TxD-

Twisted pair no. 5

<--
<--

J2-R
J2-T

RD+
RD-

J1-20
J1-19

TxCE/TxC+
TxCE/TxC-

Twisted pair no. 2

-->
-->

J2-U
J2-W

SCTE+
SCTE-

J1-26
J1-25

RxC/TxCE+
RxC/TxCE-

Twisted pair no. 4

<--
<--

J2-V
J2-X

SCR+
SCR-

J1-24
J1-23

TxC/RxC+
TxC/RxC-

Twisted pair no. 3

<--
<--

J2-Y
J2-AA

SCT+
SCT-


Table 23: V.35 DCE Cable Pinout (DB-60 to Winchester-Type 34-Pin)
60-Pin Signal Name Type Direction 34-Pin Signal Name

J1-49
J1-48

MODE_1
GND

Shorting group

-

-

-

J1-50
J1-51

MODE_0
GND

Shorting group

-

-

-

J1-53
J1-54
J1-55
J1-56

TxC/NIL
RxC_TxCE
RxD/TxD
GND

Shorting group

-

-

-

J1-46

Shield_GND

Single

-

J2-A

Frame GND

J1-45
Shield

Circuit_GND
-

Twisted pair no. 12

-
-

J2-B
Shield

Circuit GND
-

J1-35
Shield

CTS/RTS
-

Twisted pair no. 8

<--
-

J2-C
Shield

RTS
-

J1-42
Shield

RTS/CTS
-

Twisted pair no. 9

-->
-

J2-D
Shield

CTS
-

J1-43
Shield

DTR/DSR
-

Twisted pair no. 10

-->
-

J2-E
Shield

DSR
-

J1-44
Shield

LL/DCD
-

Twisted pair no. 11

-->
-

J2-F
Shield

RLSD
-

J1-34
Shield

DSR/DTR
-

Twisted pair no. 7

<--
-

J2-H
Shield

DTR
-

J1-33
Shield

DCD/LL
-

Twisted pair no. 6

<--
-

J2-K
Shield

LT
-

J1-28
J1-27

RxD/TxD+
RxD/TxD-

Twisted pair no. 5

<--
<--

J2-P
J2-S

SD+
SD-

J1-18
J1-17

TxD/RxD+
TxD/RxD-

Twisted pair no. 1

-->
-->

J2-R
J2-T

RD+
RD-

J1-26
J1-25

RxC/TxCE+
RxC/TxCE-

Twisted pair no. 4

<--
<--

J2-U
J2-W

SCTE+
SCTE-

J1-22
J1-21

NIL/RxC+
NIL/RxC-

Twisted pair no. 3

-->
-->

J2-V
J2-X

SCR+
SCR-

J1-20
J1-19

TxCE/TxC+
TxCE/TxC-

Twisted pair no. 2

-->
-->

J2-Y
J2-AA

SCT+
SCT-

X.21 Interface

This section contains the following topics:

X.21 Connections

The X.21 interface uses a 15-pin connection for balanced circuits and is commonly used in the United Kingdom to connect public data networks. X.21 relocates some of the logic functions to the DTE and DCE interfaces and, as a result, requires fewer circuits and a smaller connector than EIA/TIA-232.

The network end of the X.21 adapter cable is a standard DB-15 connector. (See Figure 18.) X.21 cables are available as either DTE (DB-15 plug) or DCE (DB-15 receptacle).


Figure 18: X.21 Adapter Cable Connectors, Network End


X.21 Serial Cable Assembly

Figure 19 shows the X.21 serial cable assembly. Table 24 lists the DTE pinout and Table 25 lists the DCE pinout. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Figure 19: X.21 Serial Cable Assembly



Table 24: X.21 DTE Cable Pinout (DB-60 to DB-15)
60-Pin Signal Name Type Direction 15-Pin Signal Name

J1-48
J1-47

GND
MODE_2

Shorting group

-

-

-

J1-51
J1-52

GND
MODE_DCE

Shorting group

-

-

-

J1-46

Shield_GND

Single

-

J2-1

Shield GND

J1-11
J1-12

TXD/RXD+
TXD/RXD-

Twisted pair no. 3

-->
-->

J2-2
J2-9

Transmit+
Transmit-

J1-9
J1-10

RTS/CTS+
RTS/CTS-

Twisted pair no. 2

-->
-->

J2-3
J2-10

Control+
Control-

J1-28
J1-27

RXD/TXD+
RXD/TXD-

Twisted pair no. 6

<--
<--

J2-4
J2-11

Receive+
Receive-

J1-1
J1-2

CTS/RTS+
CTS/RTS-

Twisted pair no. 1

<--
<--

J2-5
J2-12

Indication+
Indication-

J1-26
J1-25

RXC/TXCE+
RXC/TXCE-

Twisted pair no. 5

<--
<--

J2-6
J2-13

Timing+
Timing-

J1-15
Shield

Control_GND
-

Twisted pair no. 4

-
-

J2-8
Shield

Control GND
-


Table 25: X.21 Serial DCE Cable Pinout (DB-60 to DB-15)
60 Pin Signal Name Type Direction 15 Pin Signal Name

J1-48
J1-47

GND
MODE_2

Shorting group

-

-

-

J1-46

Shield_GND

Single

-

J2-1

Shield GND

J1-28
J1-27

RXD/TXD+
RXD/TXD-

Twisted pair no. 6

<--
<--

J2-2
J2-9

Transmit+
Transmit-

J1-1
J1-2

CTS/RTS+
CTS/RTS-

Twisted pair no. 1

<--
<--

J2-3
J2-10

Control+
Control-

J1-11
J1-12

TXD/RXD+
TXD/RXD-

Twisted pair no. 3

-->
-->

J2-4
J2-11

Receive+
Receive-

J1-9
J1-10

RTS/CTS+
RTS/CTS-

Twisted pair no. 2

-->
-->

J2-5
J2-12

Indication+
Indication-

J1-24
J1-23

TXC/RXC+
TXC/RXC-

Twisted pair no. 4

-->
-->

J2-6
J2-13

Timing+
Timing-

J1-15
Shield

Control_GND
-

Twisted pair no. 5

-
-

J2-8
Shield

Control GND
-

EIA-530 Interface

This section contains the following topics:

EIA-530 Connections

EIA-530, which supports balanced transmission, provides the increased functionality, speed, and distance of EIA/TIA-449 on the smaller DB-25 connector used for EIA/TIA-232, instead of the 37-pin connectors used for EIA/TIA-449. Like EIA/TIA-449, EIA-530 refers to the electrical specifications of EIA/TIA-422 and EIA/TIA-423. Although the specification recommends a maximum speed of 2 Mbps, EIA-530 is used successfully at 4 Mbps or faster speeds over short distances.

The EIA-530 adapter cable is available in DTE mode only. The network end of the EIA-530 adapter cable is a standard DB-25 plug commonly used for EIA/TIA-232 connections. Figure 20 shows the DB-25 connector at the network end of the adapter cable.


Figure 20: EIA-530 Adapter Cable Connector, Network End


EIA-530 Serial Cable Assembly

Figure 21 shows the EIA-530 serial cable assembly, and Table 26 lists the pinout. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.

The EIA-530 interface cannot be operated in DCE mode, and no DCE cable is available for it.


Figure 21: EIA-530 Serial Cable Assembly



Table 26: EIA-530 DTE Cable Pinout (DB-60 to DB-25)
60-Pin Signal Name 25-Pin Signal Name Direction

J1-11
J1-12

TXD/RXD+
TXD/RXD-

J2-2
J2-14

BA(A), TXD+
BA(B), TXD-

-->
-->

J1-28
J1-27

RXD/TXD+
RXD/TXD-

J2-3
J2-16

BB(A), RXD+
BB(B), RXD-

<--
<--

J1-9
J1-10

RTS/CTS+
RTS/CTS-

J2-4
J2-19

CA(A), RTS+
CA(B), RTS-

-->
-->

J1-1
J1-2

CTS/RTS+
CTS/RTS-

J2-5
J2-13

CB(A), CTS+
CB(B), CTS-

<--
<--

J1-3
J1-4

DSR/DTR+
DSR/DTR-

J2-6
J2-22

CC(A), DSR+
CC(B), DSR-

<--
<--

J1-46
J1-47

Shield_GND
MODE_2

J2-1
-

Shield
-

Shorted

J1-48
J1-49

GND
MODE_1

-
-

-
-

Shorted

J1-5
J1-6

DCD/DCD+
DCD/DCD-

J2-8
J2-10

CF(A), DCD+
CF(B), DCD-

<--
<--

J1-24
J1-23

TXC/RXC+
TXC/RXC-

J2-15
J2-12

DB(A), TXC+
DB(B), TXC-

<--
<--

J1-26
J1-25

RXC/TXCE+
RXC/TXCE-

J2-17
J2-9

DD(A), RXC+
DD(B), RXC-

<--
<--

J1-44
J1-45

LL/DCD
Circuit_GND

J2-18
J2-7

LL
Circuit_ GND

-->
-

J1-7
J1-8

DTR/DSR+
DTR/DSR-

J2-20
J2-23

CD(A), DTR+
CD(B), DTR-

-->
-->

J1-13
J1-14

TXCE/TXC+
TXCE/TXC-

J2-24
J2-11

DA(A), TXCE+
DA(B), TXCE-

-->
-->

J1-51
J1-52

GND
MODE_DCE

-
-

-
-

Shorted

Smart Serial Connection Signals and Pinouts

The Smart Serial cable interface supports two independent serial interface ports. Each port supports six types of serial interfaces: EIA/TIA-232, EIA/TIA-449, X.21, V.35 in both DTE and DCE modes, and EIA530/EIA530A in DTE mode. The serial end of the Smart Serial cable is a 26-pin connector. These cables are used with the 2-port serial and 2-port asynchronous/synchronous WAN interface cards.

Figure 22 shows the serial transition cables you can connect to the DB-60 port on the asynchronous/synchronous serial modules and serial WAN interface card.


Figure 22: Smart Serial Interface Adapter Cables


EIA/TIA-232 Smart Serial Cable Assembly

Table 27 lists the DCE pinout and Table 28 lists the DTE pinout for the EIA/TIA-232 Smart Serial cable. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Table 27: EIA/TIA-232 DCE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction DB-25 Pin Signal Name

J1-23
J1-24

MODE_0
MODE_DCE

Local connections

Drain wire

Shield

--

J2-01

Shield_GND

J1-05
J1-18

I_RXD/TXD+
GND+

Twisted pair no. 9

<--
--

J2-02

RXD
GND

J1-01
J1-14

O_TXD/RXD+
GND+

Twisted pair no. 5

-->
--

J2-03

TXD
GND

J1-11
J1-12

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 2

<--
<--

J2-04
J2-20

CTS
DSR

J1-08
J1-07

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 4

-->
-->

J2-05
J2-06

RTS
DTR

J1-06
J1-19

B_DCD/DCD+
GND+

Twisted pair no. 1

<--
--

J2-08
J2-07

DCD
GND

J1-03
J1-16

B_TXC/TXC+
GND+

Twisted pair no. 7

<--
--

J2-15

TXC
GND

J1-02
J1-15

O_TXCE/RXC+
GND+

Twisted pair no. 6

-->
--

J2-24

TXCE
GND

J1-13
J1-26

B_LL/LL+
GND+

Twisted pair no. 3

-->
--

J2-18

LTST
GND

J1-04
J1-17

I_RXC/TXCE+
GND+

Twisted pair no. 8

<--
-

J2-17

RXC
GND


Table 28: EIA/TIA-232 DTE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction DB-25 Pin Signal Name

J1-23

MODE_0

Local connections

Drain wire

Shield

--

J2-01

Shield_GND

J1-05
J1-18

I_RXD/TXD+
GND+

Twisted pair no. 5

<--
--

J2-02

TXD
GND

J1-01
J1-14

O_TXD/RXD+
GND+

Twisted pair no. 9

-->
--

J2-03

RXD
GND

J1-11
J1-12

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 2

<--
<--

J2-04
J2-20

RTS
DTR

J1-08
J1-07

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 4

-->
-->

J2-05
J2-06

CTS
DSR

J1-06
J1-19

B_DCD/DCD+
GND+

Twisted pair no. 1

-->
--

J2-08
J2-07

DCD
GND

J1-03
J1-16

B_TXC/TXC+
GND+

Twisted pair no. 7

-->
--

J2-15

TXC
GND

J1-02
J1-15

O_TXCE/RXC+
GND+

Twisted pair no. 8

-->
--

J2-17

RXC
GND

J1-13
J1-26

B_LL/LL+
GND+

Twisted pair no. 3

<--
--

J2-18

LTST
GND

J1-04
J1-17

I_RXC/TXCE+
GND+

Twisted pair no. 6

<--
-

J2-24

TXCE
GND

EIA/TIA-449 Smart Serial Cable Assembly

Table 29 lists the DTE pinout and Table 30 lists the DCE pinout for the EIA/TIA-449 Smart Serial cable. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Table 29: EIA/TIA-449 DTE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction DB-37 Pin Signal Name

Drain wire

Shield

--

J2-01

Shield_GND

J1-22
J1-24

MODE_I
MODE_DCE

Twisted pair no. 2

--
--

J2-19
J2-20

SG
RC

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 5

-->
-->

J2-04
J2-22

RD+
RD-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<--
<--

J2-05
J2-23

ST+
ST-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

-->
-->

J2-06
J2-24

SD+
SD-

J1-11
J1-10

I_CTS/RTS+
I_CTS/RTS-

Twisted pair no. 4

<--
<--

J2-09
J2-27

CS+
CS-

J1-02
J1-15

O_TXCE/RXC+
O_TXCE/RXC-

Twisted pair no. 6

-->
-->

J2-17
J2-35

TT+
TT-

J1-08
J1-09

O_RTS/CTS
O_RTS/CTS-

Twisted pair no. 1

-->
-->

J2-07
J2-25

RS+
RS-

J1-06
J1-19

B_DCD/DCD+
B_DCD/DCD-

Twisted pair no. 11

-->
-->

J2-13
J2-31

RR+
RR-

J1-07
J1-20

O_DTR/DSR+
O_DTR/DSR-

Twisted pair no. 3

-->
-->

J2-12
J2-30

TR+
TR-

J1-12
J1-25

I_DTR/DSR+
I_DTR/DSR-

Twisted pair no. 10

<--
<--

J2-11
J2-29

DM+
DM-

J1-13
J1-26

B_LL/LL+
GND+

Twisted pair no. 12

-->
--

J2-10
J2-37

LL
SC

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 8

<--
<--

J2-08
J2-26

RT+
RT-


Table 30: EIA/TIA-449 DCE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction DB-37 Pin Signal Name

Drain wire

Shield

--

J2-01

Shield_GND

J1-22

MODE_I

Twisted pair no. 2

--
Not used

J2-19
J2-20

SG
RC

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 5

<--
<--

J2-04
J2-22

SD+
SD-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

-->
-->

J2-05
J2-23

ST+
ST-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 9

-->
-->

J2-06
J2-24

RD+
RD-

J1-11
J1-10

I_CTS/RTS+
I_CTS/RTS-

Twisted pair no. 1

<--
<--

J2-07
J2-25

RS+
RS-

J1-02
J1-15

O_TXCE/RXC+
O_TXCE/RXC-

Twisted pair no. 8

-->
-->

J2-08
J2-26

RT+
RT-

J1-08
J1-09

O_RTS/CTS
O_RTS/CTS-

Twisted pair no. 4

-->
-->

J2-09
J2-27

CS+
CS-

J1-06
J1-19

B_DCD/DCD+
B_DCD/DCD-

Twisted pair no. 11

-->
-->

J2-13
J2-31

RR+
RR-

J1-07
J1-20

O_DTR/DSR+
O_DTR/DSR-

Twisted pair no. 10

-->
-->

J2-11
J2-29

DM+
DM-

J1-12
J1-25

I_DTR/DSR+
I_DTR/DSR-

Twisted pair no. 3

<--
<--

J2-12
J2-30

TR+
TR-

J1-13
J1-26

B_LL/LL+
GND+

Twisted pair no. 12

-->
--

J2-10
J2-37

LL
SC

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 6

<--
<--

J2-17
J2-35

TT+
TT-

X.21 Smart Serial Cable Assembly

Table 31 lists the DTE pinout and Table 32 lists the DCE pinout for the X.21 Smart Serial cable. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Table 31: X.21 DTE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction DB-15 Pin Signal Name

J1-21
J1-24

MODE_2
MODE_DCE

Local connections

Drain wire

Shield

--

J2-01

Shield_GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 8

<--
<--

J2-04
J2-11

RECEIVE+
RECEIVE-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

-->
-->

J2-03
J2-09

TRANSMIT+
TRANSMIT-

J1-11
J1-10

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 2

<--
<--

J2-05
J2-12

INDICATION+
INDICATION-

J1-08
J1-09

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 3

-->
-->

J2-03
J2-10

CONTROL+
CONTROL-

J1-26

GND+
Not used

Twisted pair no. 1

--

J2-08

CCT GND
Not used

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 7

<--
<--

J2-06
J2-13

TIMING+
TIMING-

Not used

Twisted pair no. 4

Not used

Not used

Twisted pair no. 6

Not used

Not used

Twisted pair no. 9

Not used


Table 32: X.21 DCE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction DB-15 Pin Signal Name

J1-21

MODE_2

Local connections

Drain wire

Shield

--

J2-01

Shield_GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 5

<--
<--

J2-02
J2-09

TRANSMIT+
TRANSMIT-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 8

-->
-->

J2-04
J2-11

RECEIVE+
RECEIVE-

J1-11
J1-10

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 3

<--
<--

J2-03
J2-10

CONTROL+
CONTROL-

J1-08
J1-09

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 2

-->
-->

J2-05
J2-12

INDICATION+
INDICATION-

J1-02
J1-15

O_TXCE/RXC+
O_TXCE/RXC+

Twisted pair no. 7

-->
-->

J2-06
J2-13

TIMING+
TIMING-

J1-26

GND
Not used

Twisted pair no. 1

--

J2-08

CCT GND
Not used

Not used

Twisted pair no. 4

Not used

Not used

Twisted pair no. 6

Not used

Not used

Twisted pair no. 9

Not used

V.35 Smart Serial Cable Assembly

Table 33 lists the DTE pinout and Table 34 lists the DCE pinout for the V.35 Smart Serial cable. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Table 33: V.35 DTE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction V.35 Pin Signal Name

J1-22
J1-23
J1-24

MODE_1
MODE_0
MODE_DCE

Local connections

Drain wire

Shield

--

J2-A

Shield_GND

J1-06
J1-19

B_DCD/DCD+
GND+

Twisted pair no. 1

<--
--

J2-F

RLSD
GND

J1-13
J1-26

B_LL/LL+
GND

Twisted pair no. 3

-->
--

J2-K
J2-B

LT
GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 9

<--
<--

J2-R
J2-T

RD+
RD-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

-->
-->

J2-P
J2-S

SD+
SD-

J1-11
J1-12

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 2

<--
<--

J2-D
J2-E

CTS
DSR

J1-08
J1-07

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 4

-->
-->

J2-C
J2-H

RTS
DTR

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 8

<--
<--

J2-V
J2-X

SCR+
SCR-

J1-02
J1-15

O_TCXE/RXC+
0_TXCE/RXC-

Twisted pair no. 6

-->
-->

J2-U
J2-W

SCTE+
SCTE-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<--
<--

J2-Y
J2-AA

SCT+
SCT-


Table 34: V.35 DCE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction V.35 Pin Signal Name

J1-22
J1-23

MODE_1
MODE_0

Local connections

Drain wire

Shield

--

J2-A

Shield_GND

J1-06
J1-19

B_DCD/DCD+
GND+

Twisted pair no. 1

-->
--

J2-F

RLSD
GND

J1-13
J1-26

B_LL/LL+
GND

Twisted pair no. 3

-->
--

J2-K
J2-B

LT
GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 5

<--
<--

J2-P
J2-S

SD+
SD-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 9

-->
-->

J2-R
J2-T

RD+
RD-

J1-11
J1-12

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 4

<--
<--

J2-C
J2-H

RTS
DSR

J1-08
J1-07

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 2

-->
-->

J2-D
J2-E

CTS
DSR

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 6

<--
<--

J2-U
J2-W

SCTE+
SCTE-

J1-02
J1-15

O_TCXE/RXC+
0_TXCE/RXC-

Twisted pair no. 8

-->
-->

J2-V
J2-X

SCR+
SCR-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

-->
-->

J2-Y
J2-AA

SCT+
SCT-

EIA-530 Smart Serial Cable Assembly

Table 35 lists the DTE pinout and Table 36 lists the DCE pinout for the EIA-530 Smart Serial cable. Arrows indicate signal direction: --> means DTE to DCE and <-- means DCE to DTE.


Table 35: EIA-530 DTE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction DB-25 Pin Signal Name

J1-21
J1-23
J1-24

MODE_2
MODE_0
MODE_DCE

Local connections

Drain wire

Shield

--

J2-01

Shield_GND

J1-06
J1-19

B_DCD/DCD+
B_DCD/DCD-

Twisted pair no. 11

<--
<--

J2-08
j2-10

CF(A); DCD+
CF(B); DCD-

J1-13
J1-26

B_LL/LL+
GND

Twisted pair no. 12

-->
--

J2-18
J2-07

LL
GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 9

<--
<--

J2-03
J2-16

BB(A); RXD+
BB(B); RXD-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

-->
-->

J2-02
J2-14

BA(A); TXD+
BA(B); TXD-

J1-11
J1-10

I_CTS/RTS+
I_DSR/RTS-

Twisted pair no. 4

<--
<--

J2-05
J2-13

CB(A); CTS+
CB(B); CTS-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<--
<--

J2-15
J2-12

DB(A); TXC+
DB(B); TXC-

J1-12
J1-25

I_DSR/DTR+
I_DSR/DTR-

Twisted pair no. 10

<--
<--

J2-06
J2-22

CC(A); DSR+
CC(B); DSR-

J1-08
J1-09

O_RTS/CTS
O_RTS/CTS-

Twisted pair no. 1

-->
-->

J2-04
J2-19

CA(A); RTS+
CA(B); RTS-

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 8

<--
<--

J2-17
J2-09

DD(A); RXC+
DD(B); RXC-

J1-02
J1-15

O_TCXE/RXC+
0_TXCE/RXC-

Twisted pair no. 6

-->
-->

J2-24
J2-11

DB(A); TXCE+
DB(B); TXCE-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<--
<--

J2-15
J2-12

DB(A); TXC+
DB(B); TXC-

J1-07
J1-20

O_DTR/DSR+
O_DTR/DSR-

Twisted pair no. 3

-->
-->

J2-20
J2-23

CD(A); DTR+
CD(B); DTR-

Not used

Twisted pair no. 2

Not used


Table 36: RS-530A DCE Smart Serial Cable Pinout
26-Pin Signal Name Note Direction DB-25 Pin Signal Name

J1-21
J1-22
J1-24

MODE_2
MODE_1
MODE_DCE

Local connections

Drain wire

Shield

--

J2-01

Shield_GND

J1-06
J1-19

B_DCD/DCD+
B_DCD/DCD-

Twisted pair no. 11

<--
<--

J2-08
j2-10

CF(A); DCD+
CF(B); DCD-

J1-13
J1-26

B_LL/LL+
GND

Twisted pair no. 12

-->
--

J2-18
J2-07

LL
AB; GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 9

<--
<--

J2-03
J2-16

BB(A); RXD+
BB(B); RXD-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

-->
-->

J2-02
J2-14

BA(A); TXD+
BA(B); TXD-

J1-11
J1-10

I_CTS/RTS+
I_DSR/RTS-

Twisted pair no. 4

<--
<--

J2-05
J2-13

CB(A); CTS+
CB(B); CTS-

J1-12
J1-25

I_DSR/DTR+
GND

Twisted pair no. 10

<--
--

J2-06

CC(A); DSR+
AC; GND

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<--
<--

J2-15
J2-12

DB(A); TXC+
DB(B); TXCS-

J1-08
J1-09

O_RTS/CTS
O_RTS/CTS-

Twisted pair no. 1

-->
-->

J2-04
J2-19

CA(A); RTS+
CA(B); RTS-

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 8

<--
<--

J2-17
J2-09

DD(A); RXC+
DD(B); RXC-

J1-02
J1-15

O_TCXE/RXC+
0_TXCE/RXC-

Twisted pair no. 6

-->
-->

J2-24
J2-11

DB(A); TXCE+
DB(B); TXCE-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<--
<--

J2-15
J2-12

DB(A); TXC+
DB(B); TXC--

J1-07
J1-20

O_DTR/DSR+
GND+

Twisted pair no. 3

-->
--

J2-20
J2-23

CD(A); DTR+
AC; GND

Not used

Twisted pair no. 2

Not used


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Posted: Tue Aug 8 16:00:50 PDT 2000
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