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Table of Contents

Cabling and Connections

Cabling and Connections

This chapter describes how to connect the hardware components to the network and contains the following sections:

4.1 Cabling A-Link and F-Link Connections

A-link and F-link connections lead from the signaling network to interface cards in the Cisco MGC host. For high-availability configurations, the connections are made from the signaling network to the A/B Switch, and then from the A/B Switch to the Cisco MGC hosts. In all of these configurations, the signaling network interface cards are installed in the Cisco MGC hosts.

Note There are no cabling differences for A-link and F-link configurations. These configurations are treated the same during hardware installation. When the Cisco MGC host is configured to use the links, the configuration procedures are different.

The Cisco MGC hosts support the following signaling network interface cards:

The following sections provide guidelines for connecting to these two types of cards. Additional sections present tables that show how to cable simplex and high-availability configurations.

4.1.1 Digi E1/T1 Card Connection Guidelines

The Digi E1/T1 card supports two signal channels over a single link. The signaling link connects directly to the Digi E1/T1 card in A-link and F-link configurations and to the A/B Switch in high-availability configurations. To complete the connection from the Cisco MGC host to the signaling network, you need to do the following:

4.1.1.1 Preparing the Signaling Channels

To prepare the signaling link for the Digi E1/T1, you will need to use a channel service unit/data service unit (CSU/DSU) to select and direct the correct signaling channels to the Cisco MGC host. The CSU/DSU must be capable of isolating select 56K digital data service (DDS) or digital signal level zero (DSO) circuits and routing them over a single link to the Digi E1/T1.

Note A CSU/DSU device is also known as channel service unit/network channel terminating equipment or CSU/NCTE.

In a simplex configuration, the CSU/DSU is placed between the signaling network and the Digi E1/T1 card. In a high-availability configuration, the CSU/DSU must be located between the signaling network and the A/B Switch. For connections to an NT1 interface outside of the building that houses the Sun Netra t 1120, Sun Netra t 1125, or Sun E450, apply a limit of 3281 ft. (1000 m) to this connection.

4.1.1.2 Preparing Signaling Cables

You will need to create or purchase the signaling cables that connect the CSU/DSU to the Cisco MGC host or A/B Switch. Each cable must be a Category 5 shielded cable with a shielded male RJ-45 connector for connecting to the Cisco MGC host or A/B Switch. You must also attach a ferrite bead to each end of every signaling cable as follows:

Step 1 Create or purchase an appropriate length cable with a male RJ-45 connector on one end and the correct connector on the end that attaches to the CSU/DSU or other customer termination point.

Step 2 Clamp a ferrite bead within one inch of the RJ-45 connector. The bead on the other end of the cable should be clamped on as close to the connector as the installation will allow.

Step 3 Secure each ferrite bead with tie-wraps on each side of the bead. Refer to Figure 4-1.

Note The female RJ-45 connector at the top of Figure 4-1 is used as an example only. The type of connector used at that end is determined by the equipment to which you connect the cable.

Figure 4-1: Shielded Cable with Ferrite Beads


4.1.2 PTI V.35 Card Connection Guidelines

The PTI V.35 card supports four signal channels that are combined in an 80-pin connector on the interface card. Cisco supplies one 6-ft. V.35 cable for each V.35 card used in the Cisco MGC host. The V.35 cable has an 80-pin connector on one end and four M34-type connectors on the other end. The M34 connectors mate with the V.35 cards located in the A/B Switch for high-availability configurations. For A-link and F-link configurations, the M34 connectors connect to the customer termination point for the signaling network link.

In a Sun Netra t 1120, Sun Netra t 1125, or Sun E450 simplex configurations, perform the following steps:

Step 1 Connect the solo end of the V.35 cable to the 80-pin connector of the V.35 card located in the host computer.

Step 2 Connect the M34 ends of the V.35 cable to the customer termination point.

In Sun Netra t 1120, Sun Netra t 1125, or Sun E450 high-availability configurations, perform the following steps:

Step 1 Connect the solo end of the V.35 cable to the 80-pin connector of the V.35 card located in the host computer.

Step 2 Connect the M34 ends of the V.35 cable to the mating V.35 cards in the A/B Switch.

The following sections present tables that you can use when cabling simplex and high-availability configurations.

4.1.3 Simplex A-Link and F-Link Cabling Tables

Table 4-1 and Table 4-2 provide guidelines for cabling simplex A-link and F-link configurations on the Sun Netra t 1120, Sun Netra t 1125, and Sun E450 host computers. These configurations are used on Cisco MGC products with the following part numbers:


Table 4-2: A-Link and F-Link Signaling Link Cable Connections for Sun E450
From To Wire/Cable Comments

Sun E450 slots 1-3, 7-10 (E1/T1)

Customer termination point

Cat 5 shielded cable

Provided by customer. RJ-45 male connector required to interface with the Sun E450. One ferrite bead kit (53-0607-01) required per E1/T1 cable provided by Cisco.

Sun E450 slots 1-3, 7-10 (V.35)

V.35 octopus cable

V.35 octopus cable, 74-1188-01

Provided by Cisco. Each V.35 card supports four SS7 links.

Sun E450 slots 1-3, 7-10 (V.35) octopus cable, ports 1-4

Customer termination point

V.35 cable

Provided by customer. Interface at the V.35 octopus cable requires a female V.35 connector.

4.1.4 High-Availability A-Link and F-Link Cabling Tables

To cable the signaling network connections for the high-availability configuration, you need to run cables between the A/B Switch and the signaling network and between the A/B Switch and the Cisco MGC host. The cabling procedures differ based on the type of interface you are using and the type of host you are connecting to. The following sections describe the following tasks:

4.1.4.1 Cabling V.35 Interfaces Between the A/B Switch and the Signaling Network

Table 4-3 provides guidelines for cabling V.35 interfaces between the A/B Switch and the signaling network. These configurations are used on Cisco MGC products with the following part numbers:

Table 4-4 shows the pinouts for the male 34-connector that attaches the A/B Switch.


Table 4-4: V.35 Male 34 Pinouts
Pin Number Signal

A

Chassis ground

B

Signal ground

C

Request to send

D

Clear to send

E

Data set ready

F

Receive line signal detect

H

Data terminal ready

J

Local loopback

K

Test mode

L

Test pattern

P

Transmitted data (A)

R

Received data (A)

S

Transmitted data (B)

T

Received data (B)

U

Terminal timing (A)

V

Receive timing (A)

W

Terminal timing (B)

X

Receive timing (B)

Y

Transmit timing (A)

AA

Transmit timing (B)

BB

Remote loopback

4.1.4.2 Cabling E1/T1 Interfaces Between the A/B Switch and the Signaling Network

Table 4-5 provides guidelines for cabling E1/T1 interfaces between the A/B Switch and the signaling network. These configurations are used on Cisco MGC products with the following part numbers:

Table 4-6 shows the pinouts for the RJ-45 connector that attaches the A/B Switch.


Table 4-6: E1/T1 RJ-45 Plug Pinout (Wiring Scheme 568B)
Pin Number Signal Color Code Comments

1

Tip

Brown

1 and 2 are pairs

2

Ring

Grey

1 and 2 are pairs

3

Tip

Red

3 and 6 are pairs

4

Ring

Orange

4 and 5 are pairs

5

Tip

Blue

4 and 5 are pairs

6

Ring

Green

3 and 6 are pairs

7

Tip

Yellow

7 and 8 are pairs

8

Ring

Black

7 and 8 are pairs

Connector shield

-

Cable shield

-

4.1.4.3 Connecting the A/B Switch to the Sun Netra t 1120 and Sun Netra t 1125

Table 4-7 provides guidelines for connecting the A/B Switch to the Sun Netra t 1120 and
Sun Netra t 1125. These configurations are used on Cisco MGC products with the following part numbers:


Table 4-7: Cabling Guidelines for Connecting the A/B Switch to the Sun Netra t 1120 and Sun Netra t 1125
From To Wire/Cable Comments
Sun Netra t 1120/1125 A

Sun Netra t 1120/1125 (E1/T1) PCI 2-PCI 4 slots

A/B Switch (E1/T1), slot X, port A

E1/T1 cable, 72-1881-01 with ferrite beads

Provided by Cisco

Sun Netra t 1120/1125 PCI 2-PCI 4 slots (V.35). Octopus cable, ports 1-4

A/B Switch (V.35 cards), slot X, port A

V.35 octopus cable, 74-1188-01

Provided by Cisco (each V.35 card supports four SS7 links)

Serial Port Expander A, port 1, red terminal adapter

A/B Switch master control card slot 1, port A, red terminal adapter

Cisco 72-1881-01

Provided by Cisco

Sun Netra t 1120/1125 B

Sun Netra t 1120/1125 (E1/T1) PCI 2-PCI 4 slots

A/B Switch (E1/T1 cards), slot X, port B

E1/T1 cable, 72-1881-01 with ferrite beads

Provided by Cisco

Sun Netra t 1120/1125 PCI 2-PCI 4 slots (V.35). Octopus cable, ports 1-4

A/B Switch (V.35 cards), slot X, port B

V.35 octopus cable, 74-1188-01

Provided by Cisco (each V.35 card supports four SS7 links)

Serial Port Expander B, port 1, red terminal adapter

A/B Switch master control card slot 1, port B, red terminal adapter

Cisco 72-1881-01

Provided by Cisco

A/B Switch

A/B Switch master control card, slot 1, port A

Red terminal adapter

N/A

Provided by Cisco

A/B Switch master control card, slot 1, port B

Red terminal adapter

N/A

Provided by Cisco

A/B Switch control port

A/B Switch status port

Gang cable 74-1160-01

Provided by Cisco

Table 4-8 shows the pinouts for the RJ-45 to DB-25 adapter described in Table 4-7.


Table 4-8: Red RJ-45/DB-25 Adapter (DB-25 Plug Pins/Signal Pins)
DB-25 Plug Pins/Signal Pins RJ-45 Pins
From To

6/DSR

1

8/DCD

2

20/DTR

3

7/GND

4

3/RxD

5

2/TxD

6

5/CTS

7

4/RTS

8

4.1.4.4 Connecting the A/B Switch to the Sun E450

Table 4-9 provides guidelines for connecting the A/B Switch to the Sun E450. These configurations are used on Cisco MGC products with the following part number: TC-E450-AC-2NC.


Table 4-9: Cabling Guidelines for Connecting the A/B Switch to the E450
From To Wire/Cable Comments
E450 A

Sun E450 slots 1-3, 7-10 (E1/T1)

A/B Switch (E1/T1 cards), slot X, port A

E1/T1 cable, 72-1790-01 with ferrite beads

Provided by Cisco

Sun E450 slots 1-3, 7-10 (V.35). Octopus cable, ports 1-4

A/B Switch (V.35 cards), slot X, port A

V.35 octopus cable, 74-1188-01

Provided by Cisco (each V.35 card supports four SS7 links)

Serial Port Expander A, port 1, red terminal adapter

A/B Switch master control card slot 1, port A, red terminal adapter

Cisco 72-1881-01

Provided by Cisco

Sun E450 B

Sun E450 slots 1-3, 7-10 (E1/T1)

A/B Switch (E1/T1 cards), slot X, port B

E1/T1 cable, 72-1881-01 with ferrite beads

Provided by Cisco

Sun E450 slots 1-3, 7-10 (V.35). Octopus cable, ports 1-4

A/B Switch (V.35 cards), slot X, port B

V.35 octopus cable, 74-1188-01

Provided by Cisco (each V.35 card supports four SS7 links)

Serial Port Expander B, port 1, red terminal adapter

A/B Switch master control card slot 1, port B, red terminal adapter

Cisco 72-1881-01

Provided by Cisco

A/B Switch

A/B Switch master control card slot 1, port A

Red terminal adapter

N/A

Provided by Cisco

A/B Switch master control card slot 1, port B

Red terminal adapter

N/A

Provided by Cisco

A/B Switch control port

A/B Switch status port

Gang cable 74-1160-01

Provided by Cisco

Table 4-8 shows the pinouts for the RJ-45 to DB-25 adapter described in Table 4-9.

4.2 Cabling Media Gateway Passthrough Connections

Media gateway (MGW) passthrough connections lead from the media gateway to interface cards in the Cisco MGC host. For high-availability configurations, the connections are made from the media gateway to the A/B Switch, and then from the A/B Switch to the Cisco MGC hosts. In all of these configurations, the signaling network interface cards are installed in the Cisco MGC hosts.

The Cisco MGC hosts supports the Digi E1/T1 signaling network interface card. For guidelines on using this card, see the "Digi E1/T1 Card Connection Guidelines" section.

The following sections present tables that show how to cable simplex and high-availability configurations for MGW passthrough signaling.

4.2.1 Simplex MGW Passthrough Cabling Table

Table 4-10 provides guidelines for cabling simplex MGW passthrough configurations on the Sun Netra t 1120 and Sun Netra t 1125 host computers. These configurations are used on Cisco MGC products with the following part numbers:

4.2.2 High-Availability MGW Passthrough Cabling Tables

To cable the MGW passthrough connections for the high-availability configuration, you need to run cables between the A/B Switch and the media gateway and between the A/B Switch and the Cisco MGC host. The following sections describe the required tasks:

4.2.2.1 Cabling E1/T1 Interfaces Between the A/B Switch and the Media Gateway

Table 4-11 provides guidelines for cabling E1/T1 interfaces between the A/B Switch and the media gateway. These configurations are used on Cisco MGC products with the following part numbers:

Table 4-6 shows the pinouts for the RJ-45 connector that attaches the A/B Switch.

4.2.2.2 Connecting the A/B Switch to the Sun Netra t 1120 and Sun Netra t 1125

Table 4-7 provides guidelines for connecting the A/B Switch to the Sun Netra t 1120 and Sun Netra t 1125. These configurations are used on Cisco MGC products with the following part numbers:

Table 4-8 shows the pinouts for the RJ-45 to DB-25 adapter described in Table 4-7.

4.3 Cabling the Control Signaling Network Connection

The control signaling network is the network that links the Cisco MGC host with the media gateway it controls. There are many ways to create the control signaling network, and you are free to design your own.The cabling instructions for the control signaling network are different for simplex and high-availability configurations and for different host types. The following sections describe the following tasks:

Note The following sections describe how to connect the MGC host to an Ethernet network. It is the customer's responsibility to design and build the control signaling network to which the MGC host connects.

4.3.1 Cabling Simplex Configurations on the Sun Netra t 1120/1125

Table 4-12 provides cabling guidelines for cabling Ethernet networks to Sun Netra t 1120 and Sun Netra t 1125 host computers. A second interface is required only when you plan to use redundant routers or switches in your control signaling network.


Table 4-12: Control Signaling Network Cabling for Simplex Configurations on the Sun Netra t 1120 and Sun Netra t 1125
From To Wire/Cable Comments

Sun Netra t 1120/1125 TPE motherboard connector

Router/LAN switch

Ethernet patch cable

Provided by customer

Sun Netra t 1120/1125 PCI 2-PCI4 slots (Ethernet)

Router/LAN switch

Ethernet patch cable

Provided by customer

4.3.2 Cabling Simplex Configurations on the Sun E450

Table 4-13 provides cabling guidelines for cabling Ethernet networks to the Sun E450 host computer. A second interface is required only when you plan to use redundant routers or switches in your control signaling network.


Table 4-13: Control Signaling Network Cabling for Simplex Configurations on the Sun E450
From To Wire/Cable Comments

Sun E450 TPE motherboard connector

Router/LAN switch

Ethernet patch cable

Provided by customer

Sun E450 slots 1-3, 7-10 (Ethernet)

Router/LAN switch

Ethernet patch cable

Provided by customer

4.3.3 Cabling High-Availability Configurations on the Sun Netra t 1120/1125

Table 4-14 provides cabling guidelines for cabling Ethernet networks to Sun Netra t 1120 and Sun Netra t 1125 host computers.


Table 4-14: Control Signaling Network Cabling for High-Availability Configurations on the Sun Netra t 1120 and Sun Netra t 1125
From To Wire/Cable Comments
Sun Netra t 1120/1125 A

Sun Netra t 1120/1125 TPE motherboard connector

Router/LAN switch A

Ethernet patch cable

Provided by customer

Sun Netra t 1120/1125 PCI 2-PCI4 slots (Ethernet)

Router/LAN switch B

Ethernet patch cable

Provided by customer

Sun Netra t 1120/1125 B

Sun Netra t 1120/1125 TPE motherboard connector

Router/LAN switch A

Ethernet patch cable

Provided by customer

Sun Netra t 1120/1125 PCI 2-PCI4 slots (Ethernet)

Router/LAN switch B

Ethernet patch cable

Provided by customer

4.3.4 Cabling High-Availability Configurations on the Sun E450

Table 4-15 provides cabling guidelines for cabling Ethernet networks to Sun E450 host computers.


Table 4-15: Control Signaling Network Cabling for High-Availability Configurations on the Sun E450
From To Wire/Cable Comments
Sun Netra t 1120/1125 A

Sun E450 TPE motherboard connector

Router/LAN switch A

Ethernet patch cable

Provided by customer

Sun E450 PCI 2-PCI4 slots 1-3, 7-10 (Ethernet)

Router/LAN switch B

Ethernet patch cable

Provided by customer

Sun Netra t 1120/1125 B

Sun E450 TPE motherboard connector

Router/LAN switch A

Ethernet patch cable

Provided by customer

Sun E450 PCI 2-PCI4 slots 1-3, 7-10 (Ethernet)

Router/LAN switch B

Ethernet patch cable

Provided by customer

4.4 Connecting the ARU and Serial Port Expander

The cabling instructions for the ARU and Serial Port Expander are different for simplex and high-availability configurations and for different host types. The next sections describe the following tasks:

4.4.1 Cabling Simplex Configurations on the Sun Netra t 1120/1125

Table 4-16 provides cabling guidelines for cabling ARUs and Serial Port Expanders on the Sun Netra t 1120 and Sun Netra t 1125 host computers. This cabling configuration is used on Cisco MGC products with the following part numbers:


Table 4-16: ARU and Serial Port Expander Cabling for Simplex Configurations on the Sun Netra t 1120 and Sun Netra t 1125
From To Wire/Cable Comments
Optional ARU

ARU MON port

Serial Port Expander, port 2, black terminal adapter

Cisco 72-1882-01

Cable provided by Cisco (see Table 4-17)

ARU COM port

Serial Port Expander, port 3, black terminal adapter

Cisco 72-1882-01

Cable provided by Cisco (see Table 4-17)

ARU relays port

Customer alarm termination point

Cisco 72-1903-01

50-ft stub cable provided by Cisco (see Table 4-18)

Table 4-17 lists the pinouts for the black terminal adapter shown in Table 4-16.
Table 4-17: RJ-45/DB-25 Black Adapter
DB-25 Plug Pins/Signal Name RJ-45 Pins
From To

6/DSR

1

8/CD

1

5/CTS

2

3/RD

3

20/DTR

4

20/DTR

7

2/TD

5

7/SG

6

-

8 - No connection

Table 4-18 lists the pinouts for the ARU alarm cable shown in Table 4-16
Table 4-18: ARU Alarm Cable Pinouts (72-1903-01)
ARU Pin Number Wire Color Signal Definition

1

White/Blue

Normally open, misc

2

Blue/White

Normally closed, misc

3

Orange/White

Normally open, minor

4

White/Orange

Normally closed, minor

5

Brown/White

Normally open, major

6

White/Brown

Normally closed, major

7

Green/White

Normally open, critical

8

White/Green

Normally closed, critical

9

Slate/White

Common, misc

10

White/Slate

No connection

11

Red/Orange

Common minor

12

Orange/Red

No connection

13

Red/Blue

Common major

14

Blue/Red

No connection

15

Red/Green

Common critical

-

Green/Red

No connection

.

4.4.2 Cabling Simplex Configurations on the Sun E450

Table 4-19 provides cabling guidelines for cabling ARUs and Serial Port Expanders on the Sun E450 host computer. This cabling configuration is used on Cisco MGC products with the following part number: TC-E450-AC-1NC

Note The Serial Port Expander is required only if the ARU is used.
Table 4-19: ARU and Serial Port Expander Cabling for Simplex Configurations on the Sun E450
From To Wire/Cable Comments

Sun E450 slot 4-6 (async card)

Serial Port Expander A

8-position Serial Port Expander

Provided by Cisco (required if ARU option is used)

Serial Port Expander, port 2

Black terminal adapter

N/A

Provided by Cisco (required if ARU option is used; see Table 4-17)

Serial Port Expander, port 3

Black terminal adapter

N/A

Provided by Cisco (required if ARU option is used; see Table 4-17)

Optional ARU

ARU MON port

Serial Expander, port 2, black terminal adapter

Cisco 72-1882-01

Cable provided by Cisco (see Table 4-17)

ARU COM port

Serial Expander, port 3, black terminal adapter

Cisco 72-1882-01

Cable provided by Cisco (see Table 4-17)

ARU relays port

Customer alarm termination point

Cisco 72-1903-01

50-ft stub cable provided by Cisco (see Table 4-18)

4.4.3 Cabling High-Availability Configurations on the Sun Netra t 1120/1125

Table 4-20 provides high-availability cabling guidelines for cabling ARUs and Serial Port Expanders on the Sun Netra t 1120 and Sun Netra t 1125 host computers. This cabling configuration is used on Cisco MGC products with the following part numbers:

Table 4-21 lists the pinouts for the green terminal adapter shown in Table 4-20.
Table 4-21: RJ-45/DB-25 Green Adapter
DB-25 Plug Pins/Signal Pins RJ-45 Pins
From To

6/DSR

3

8/DCD

3

20/DTR

1

7/GND

4

3/RxD

6

2/TxD

5

5/CTS

8

4/RTS

7

20/DTR

2

4.4.4 Cabling High-Availability Configurations on the Sun E450

Table 4-22 provides cabling guidelines for cabling ARUs and Serial Port Expanders on the Sun E450 host computer. This cabling configuration is used on Cisco MGC products with the following part number: TC-E450-AC-2NC (Serial Port Expander required).
Table 4-22: ARU and Serial Port Expander Cabling Configurations for High-Availabilit on the Sun E450
From To Wire/Cable Comments
Sun E450 A

Sun E450 slot 4-6 (async card)

Serial Port Expander A

8-position Serial Port Expander

Provided by Cisco

Serial Port Expander A, port 0

Red terminal adapter

N/A

Provided by Cisco (see Table 4-8)

Serial Port Expander A, port 1

Red terminal adapter

N/A

Provided by Cisco (see Table 4-8)

Serial Port Expander A, port 2

Black terminal adapter

N/A

Provided by Cisco (required if ARU is used; see Table 4-17)

Serial Port Expander A, port 3

Black terminal adapter

N/A

Provided by Cisco (required if ARU is used; see Table 4-17)

Serial Port Expander A, port 0, red terminal adapter

Serial Port Expander B, port 0, green terminal adapter

Cisco 72-1881-01

Provided by Cisco (see Table 4-21)

Optional ARU A

ARU A MON port

Serial Expander A, Port 2, black terminal adapter

Cisco 72-1882-01

Provided by Cisco (see Table 4-17)

ARU A COM port

Serial Expander A, Port 3, black terminal adapter

Cisco 72-1882-01

Provided by Cisco (see Table 4-17)

ARU A relays port

Customer alarm termination point

Cisco 72-1903-01

50-ft stub cable provided by Cisco (see Table 4-18)

Sun E450 B

Sun E450 slot 4-6 (async card)

Serial Port Expander B

8-position Serial Port Expander

Provided by Cisco

Serial Port Expander B, port 0

Green terminal adapter

N/A

Provided by Cisco (see Table 4-21)

Serial Port Expander B, port 1

Red terminal adapter

N/A

Provided by Cisco (see Table 4-8)

Serial Port Expander B, port 2

Black terminal adapter

N/A

Provided by Cisco (required if ARU is used; see Table 4-17)

Serial Port Expander B, port 3

Black terminal adapter

N/A

Provided by Cisco (required if ARU is used; see Table 4-17)

Optional ARU B

ARU B MON port

Serial Expander B, port 2, black terminal adapter

Cisco 72-1882-01

Provided by Cisco (see Table 4-17)

ARU B COM port

Serial Expander B, port 3, black terminal adapter

Cisco 72-1882-01

Provided by Cisco (see Table 4-17)

ARU B relays port

Customer termination point

Cisco 72-1903-01

50-ft stub cable provided by Cisco (see Table 4-18)


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Posted: Fri Dec 10 00:01:19 PST 1999
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