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Table of Contents

IPX Cabling Summary

IPX Cabling Summary

This appendix provides details on the IPX cabling required to connect customer devices and lines to the IPX node.

Note In all cable references, the transmit direction is from the IPX, receive is to the IPX.

T1 Cabling

T1 trunk cables connect the customer DSX-1 crossconnect point or T1 Channel Service Unit to the IPX node at a BC-T1 back card. Refer to Table C-1 through Table C-2 for details.


Table C-1: T1 Trunk/Circuit Line Cabling Specification
Cable Parameter Description

Cable Type:

Western Electric 22 AWG, ABAM individually shielded twisted pair. Two pair per T1 line (1 transmit and 1 receive).

Cable Connector:

Male DB-15 subminiature. See Table A-2 for pinouts. The connector pinouts are the same for the both the BA-T1 and for the MT3 Distribution Panel.

Max. Cable Length:

655 ft (199 m.) maximum between the IPX and the first repeater or CSU. Selection of cable length equalizers.
Table C-2: T1 Connector Pin Assignments
Pin # Description

1

Transmit, Tip

2

Transmit Pair Shield

3

Receive, Tip

4

Receive Pair Shield

9

Transmit, Ring

11

Receive, Ring
Note Transmit direction is towards the T1 trunk.

E1 Cabling

E1 trunk cables connect the customer DSX-1 crossconnect point or E1 Channel Service Unit to the IPX node at the BC-E1 back card. Refer to Table C-3 through Table C-5 for details.


Table C-3: E1 Trunk/Circuit Line Cabling Specification
Cable Parameter Description

Cable Type:

75-ohm coax cable for unbalanced connection or 100-120-ohm twisted pair for balanced connection. Two cables/pairs (1 transmit, 1  receive) per E1 line.

Cable Connector:

Two female BNC for unbalanced connection; male DB15 for balanced connection. See Tables A-2 and A-3 for pinouts.

Max. Cable Length:

Approx. 100 meters maximum between the IPX and the first repeater or CSU. Equalizer for cable length.
Table C-4: E1 Connector Pin Assignments (unbalanced)
Connector Description

Rx BNC

Receive E1 from trunk

Tx BNC

Transmit E1 to trunk
Table C-5: E1 Connector Pin Assignments (balanced)
Pin # Description

1

Receive, Tip

9

Receive, Ring

2

Receive Pair Shield

3

Transmit, Tip

11

Transmit, Ring

10

Transmit Pair Shield
Note Transmit direction is towards the E1 trunk.

Subrate (SR) Cabling

Subrate cabling information is detailed in Table C-6 through Table C-9.


Table C-6: Subrate Trunk Cabling Specification
Cable Parameter Description

Cable Type:

100-120-ohm twisted pair telephone cable.

Cable Connector:

V.11, DB15 subminiature, male.
V.35, 34 pin M block (Winchester), male.
MIL188/RS-449, DB-37 subminiature, male.
See Tables A-4 through A-6 for pinouts.

Max. Cable Length:

Depends on operating speed. Ranges from 400 m. for 256 Kbps to 50 m. for 1.92 Mbps.
Table C-7: SR Connector Pin Assignments (V.11)
Pin # Description

1

Shield ground

2

TX-A

9

TX-B

3

CA

10

CB

4

RX-A

11

RX-B

5

IA

12

IB

6

SA

13

SB

7

not used

8

Signal ground

14

not used

15

not used
Table C-8: SR Connector Pin Assignments (V.35)
Pin # Name Source Description

A

Gnd.

both

Protective (Shield) ground

B

Sig. Gnd.

both

Signal ground

C

RTS

DTE

Request to Send

D

CTS

DCE

Clear to Send

E

DSR

DCE

Data Set Ready

F

DCD

DCE

Data Carrier Detect (RLSD)

H

DTR

DTE

Data Terminal Ready

J

RI

DCE

Ring Indicator

K

TM

DCE

Test Mode

L-N

not used

P/S

TxD

DTE

Transmit Data from DTE

R/T

RxD

DCE

Received Data to DTE

U/W

XTC

DTE

External Transmitter Clock

V/X

RxC

DCE

Receiver Clock

Y/AA

TxC

DCE

Transmitter Clock

BB-EE

not used
Table C-9:
Pin # IPX Name EIAName Source Description

1

Frm. Gnd.

Both

Shield Ground

2

SI

SI

DCE

Signaling Rate Indicator (to DTE)

4/22

TxD

SD

DTE

Transmit Data from DTE

5/23

TxC

ST

DCE

Transmitter Clock

6/24

RxD

RD

DCE

Received Data to DTE

7/25

RTS

RS

DTE

Request to Send

8/26

RxC

RT

DCE

Receiver Clock

9/27

CTS

CS

DCE

Clear to Send

10

LL

LL

DTE

Local Loopback

11/29

DSR

DM

DCE

Data Set Ready

12/30

DTR

TR

DTE

Data Terminal Ready

13/31

DCD

RR

DCE

Data Carrier Detect (RLSD)

14

RL

RL

DTE

Remote Loopback

15

RI

IC

DCE

Ring Indicator

16

SF

SF

DTE

Signal Rate Select (to DCE)

17/35

XTC

TT

DTE

External Transmitter Clock

18

TM

TM

DCE

Test Mode

19

Sig. Gnd.

SG

Both

Signal Ground

20

RC

DCE

Receive Common

28

BSY

IS

DTE

Busy (in service)

32

SS

SS

DTE

Select Standby

33

SQ

SQ

DCE

Signal Quality Detect

34

NS

NS

DTE

New Synchronization

36

SB

SB

DCE

Standby Indicator

37

SC

DTE

Send Common

3, 21

Spare

SR Connector Pin Assignments (RS-449)

ATM Cabling

ATM Trunk cables connect the AIT back card to a DSX-3 cross-connect point, another AIT back card in a co-located node, or to a BPX node at the BNI LM-3T3 back card. Refer to Table C-10 and Table C-11 for details.


Table C-10: T3 /E3 Trunk Cables
Cable Parameter Description

Type:

75-ohm coax cable (RG-59 B/U for short runs, AT&T 734A for longer runs). Two per T3/E3 line (XMT and RCV).

Max. Length:

450 feet max. between the ATM back card and the DSX-3 point, or ATM trunk card.

Connector

Female BNC; Rx is receive T3/E3 to ATM back card, Tx is transmit T3/E3 to DSX-3 cross-connect.
Table C-11: T3 Connector Pin Assignments
Connector Description

Rx BNC

Receive T3 from trunk

Tx BNC

Transmit T3 to trunk

Data Cabling

Cables for use with the LDP and SDP for synchronous and asynchronous data circuits are specified in Table C-12.


Table C-12: Synchronous Data Cables
Cable Parameter Description

Cable Type:

Standard RS-232C/D (V.24), V.35, or RS-449/422 (with adaptor cable for X.21).

Cable Connectors:

RS-232C/D (V.24): DB-25 Subminiature, male.
V.35: 34 pin M block-type (Winchester), male.
RS-449/422: DB-37 Subminiature, male. See Tables A-9 through A-17 for pinouts.

Max. Cable Length:

Not to exceed interface standards.

SDI RS-232D Port Pin Assignments

Table C-13 contains a listing of IPX RS-232D Port pin assignments for the SDI data card. A standard RS-232 cable is used for this application.


Table C-13: SDI RS-232D Port Pin Assignments
Pin # IPX Name EIA Name Source Description

1

Frame Gnd.

AA

Both

Frame Ground

2

TxD

BA

DTE

Transmit Data from DTE

3

RxD

BB

DCE

Received Data to DTE

4

RTS

CA

DTE

Request to Send

5

CTS

CB

DCE

Clear to Send

6

DSR

CC

DCE

Data Set Ready

7

Signal Ground

8

DCD

CF

DCE

Data Carrier Detect (RLSD)

9

+VS

Both

+12 volt test

10

-VS

Both

-12 volt test

11

QM

DCE

Equalizer Mode (to DTE only)

12

SDCD

SCF

DCE

Secondary Data Carrier Detect

13

SCTS

SCB

DCE

Secondary Clear to Send

14

STxD

SBA

DTE

Secondary Transmit Data

15

TxC

DB

DCE

Transmitter Clock

16

SRxD

SBB

DCE

Secondary Received Data

17

RxC

DD

DCE

Receiver Clock

18

RL

DTE

Remote Loop Back

19

SRTS

SCA

DTE

Secondary Request to Send

20

DTR

CD

DTE

Data Terminal Ready

21

SQ

CG

DCE

Signal Quality Detect

22

RI

CE

DCE

Ring Indicator

23

SF

CH

DTE

Signal Rate Select (to DCE)

23

SI

CI

DCE

Signaling Rate Indicator (to DTE)

24

XTC

DA

DTE

External Transmitter Clock

25

TST

DCE

Test Indicator

SDI RS-232C (V.24) Port Pin Assignments

Table C-14 contains a listing of IPX RS-232 Port pin assignments for the SDI data card. A standard RS-232 (V.24) cable is used for this application.


Table C-14: SDI RS-232C Port Pin Assignments
Pin # IPX Name EIA Name Source Description

1

Frame Gnd.

AA

Both

Frame Ground

2

TxD

BA

DTE

Transmit Data from DTE

3

RxD

BB

DCE

Received Data to DTE

4

RTS

CA

DTE

Request to Send

5

CTS

CB

DCE

Clear to Send

6

DSR

CC

DCE

Data Set Ready

7

Signal Ground

8

DCD

CF

DCE

Data Carrier Detect (RLSD)

9

+VS

Both

+12 volt test

10

-VS

Both

-12 volt test

11

QM Pin 11

DCE
DTE

Equalizer Mode (to DTE).
Pin 11 to (DCE)

12

SDCD

SCF

DCE

Secondary Data Carrier Detect

13

SCTS

SCB

DCE

Secondary Clear to Send

14

STxD

SBA

DTE

Secondary Transmit Data

15

TxC

DB

DCE

Transmitter Clock

16

SRxD

SBB

DCE

Secondary Received Data

17

RxC

DD

DCE

Receiver Clock

18

DCR

DCE

Divided Receiver Clock

19

SRTS

SCA

DTE

Secondary Request to Send

20

DTR

CD

DTE

Data Terminal Ready

21

SQ

CG

DCE

Signal Quality Detect

22

RI

CE

DCE

Ring Indicator

23

SFCI

CH
CI

DTE
DCE

Signal Rate Select (to DCE).
Signaling Rate Indicator (to DTE)

24

XTC

DA

DTE

External Transmitter Clock

25

BSY

DTE

Busy (in service)

SDI RS-449/422 Port Pin Assignments

Table C-15 contains a listing of IPX RS-449/422 port pin assignments. A standard RS-449 cable is used for this application unless interface is X.21.


Table C-15: SDI RS-449/422 Port Pin Assignments
Pin # IPX Name EIA Name Source Description

1

Both

Shield Ground

2

SI

SI

DCE

Signaling Rate Indicator (to DTE)

3

Spare

4/22

TxD

SD

DTE

Transmit Data from DTE

5/23

TxC

ST

DCE

Transmitter Clock

6/24

RxD

RD

DCE

Received Data to DTE

7/25

RTS

RS

DTE

Request to Send

8/26

RxC

RT

DCE

Receiver Clock

9/27

CTS

CS

DCE

Clear to Send

10

LL

LL

DTE

Local Loopback

11/29

DSR

DM

DCE

Data Set Ready

12/30

DTR

TR

DTE

Data Terminal Ready

13/31

DCD

RR

DCE

Data Carrier Detect (RLSD)

14

RL

RL

DTE

Remote Loopback

15

RI

IC

DCE

Ring Indicator

16

SF

SF

DTE

Signal Rate Select (to DCE)

17/35

XTC

TT

DTE

External Transmitter Clock

18

TM

TM

DTE

Test Mode

19

SG

Both

Signal Ground

20

RC

DCE

Receive Common

21

Spare

28

BSY

IS

DTE

Busy (in service)

32

SS

SS

DTE

Select Standby

33

SQ

SQ

DCE

Signal Quality Detect

34

NS

NS

DTE

New Synchronization

36

SB

SB

DCE

Standby Indicator

37

SC

DTE

Send Common

See Table C-16 and Table C-17 for Wire Lists for adapter cables for X.21 application. This adapter cable is available in two models, one is used when the SDI is a DCE, the other when it is a DTE. It has a male DB-37 on the IPX end and a female DB-15 (DCE) or male DB-15 (DTE) on the user end.


Table C-16: Wiring List, SDI RS-449 to X.21 Adapter Cable (for RS-449 DCE Port)
DB-37
Pin #
(SDI)

IPX Name 		DB-15
Pin #
(User)

Description

1

Drain

1

Frame Ground

4

TxD-A

2

Transmit Data from DTE

22

TxD-B

9

Transmit Data from DTE

6

RxD-A

4

Receive Data to DTE

24

RxD-B

11

Receive Data to DTE

7

RTS-A

3

Request to Send

25

RTS-B

10

Request to Send

9

CTS-A

5

Clear to Send

27

CTS-A

12

Clear to Send

8

RxC-A

6

Receive Clock

26

RxC-B

13

Receive Clock

19

SG

8

Signal Ground
Table C-17: Wiring List, SDI RS-449 to X.21 Adapter Cable (for RS-449 DTE Port)
DB-37
Pin #
(SDI)
IPX
Name 		DB-15
Pin #
(User)

Description

1

Drain

1

Frame Ground

4

TxD-A

2

Transmit Data from DTE

22

TxD-B

9

Transmit Data from DTE

6

RxD-A

4

Receive Data to DTE

24

RxD-B

11

Receive Data to DTE

7

RTS-A

3

Request to Send

25

RTS-B

10

Request to Send

9

CTS-A

5

Clear to Send

27

CTS-A

12

Clear to Send

5

TxC-A

6

Transmit Clock

23

TxC-B

13

Transmit Clock

19

SG

8

Signal Ground

5 to 8

TxC-A

Receive Clock1

23 to 26

TxC-B

Receive Clock1

1Loops Receive Clock to Transmit Clock when necessary.

SDI V.35 Port Pin Assignments

Table C-18 contains a listing of IPX V.35 Port pin assignments for the SDI card. A standard V.35 cable is used for this application.


Table C-18: SDI V.35 Port Pin Assignments
Pin # Name Source Description

A

Gnd.

both

Protective (Shield) ground

B

Sig. Gnd.

both

Signal ground

C

RTS

DTE

Request to Send

D

CTS

DCE

Clear to Send

E

DSR

DCE

Data Set Ready

F

DCD

DCE

Data Carrier Detect (RLSD)

H

DTR

DTE

Data Terminal Ready

J

RI

DCE

Ring Indicator

K

TM

DCE

Test Mode

P/S

TxD

DTE

Transmit Data from DTE

R/T

RxD

DCE

Receive Data to DTE

U/W

XTC

DTE

External Transmitter Clock

V/X

RxC

DCE

Receiver Clock

Y/a

TxC

DCE

Transmitter Clock

LDI RS-232 Port Pin Assignments

Table C-19 lists the LDI RS-232 Port Pin Assignments at the DB-15 connector on the card. The LDP card supports only a limited subset of EIA control leads. The LDI is always used with a DCE or DTE DB-15 to DB-25 Adapter Cable. Refer to Table C-20 through Table C-21 for wiring lists and the pin-outs for the standard male DB-25 connector to the user data device.


Table C-19: LDI RS-232C Port Pin Assignments
Pin # IPX Name EIA Name Source Description

1

Shield

AA

Both

Frame Ground

2

TxD

BA

DTE

Transmit Data from DTE

3

CTS

CB

DCE

Clear to Send

4

RxD

BB

DCE

Received Data to DTE

5

RTS

CA

DTE

Request to Send

6

XTC

DB

DCE

Transmitter Clock

7

RxC

DD

DCE

Receiver Clock

8

SG

AB

Both

Signal Ground

9

DSR

CC

DCE

Data Set Ready

10

DTR

CD

DTE

Data Terminal Ready

11

+VS

Both

+12V test voltage

12

-VS

Both

-12V test voltage

13

DCD

CF

DCE

Data Carrier Detect (RLSD)

14

RL

DTE

Remote Loop (for modem loopback)

15

MOD

Mode Select for cable (DTE or DCE)
Table C-20: Wiring List, DB15 to DB25 Adapter Cable (LDI as DTE)
DB-15
Pin #
(LDI)
IPX
Name 		DB-25
Pin #
(User)

Description

1

Frm. Gnd.

1

Frame Ground

2

RxD

3

Received Data to DTE

3

RTS

4

Request to Send

4

TxD

2

Transmit Data from DTE

5

CTS

5

Clear to Send

6

XTC

24

External Transmit Clock

7

RxC

17

Receive Clock

8

SG

7

Signal Ground

9

DTR

20

Data Terminal Ready

10

DSR

6

Data Set Ready

11

+VS

9

+12V test voltage 2

12

-VS

10

-12V test voltage 2

13

DCD

8

Data Carrier Detect (RLSD)

14

RL

21

Remote Loop output

15

MOD

n.c.

Connects internally to DB15-8

(3)

LL

18

Local Loop output3


1.  This may be ordered in lengths of 10, 25, 50, 75, and 100 feet.The Cisco model number is CAB-5626E-xx, where xx is the length, as follows: 10, 25, 50, 75, and 00 = 10, 25, 50, 75, and 100 feet respectively.
2.  You can use one of these pins to force a control pin to stay low or high.
3.  There is no LDI local loop output. Try using DTR output, DB15-9.
1
Note There are two adapter cables used with the LDI card. The choice of cable determines whether the LDI card acts as a DCE or as a DTE. These may be ordered from Customer Service or made up by the customer. Make sure the correct cable is used for the type of user device connected

Table C-21: Wiring List, DB15 to DB25 Adapter Cable (LDI as DCE)1
DB-15
Pin #
(LDI)
IPX
Name 		DB-25
Pin #
(User)

Description

1

Shield

1

Frame Ground

2

TxD

2

Transmit Data from DTE

3

CTS

5

Clear to Send

4

RxD

3

Receive Data to DTE

5

RTS

4

Request to Send

6

RxC

17 *

Receive Clock, connects to DB25-152

7

XTC

24

External Transmit Clock

8

SG

7

Signal Ground

9

DSR

6

Data Set Ready

10

DTR

20

Data Terminal Ready

11

+VS

9

+12V test voltage3

12

-VS

10

-12V test voltage3

13

n.c.

n.c.

not used

14

DCD

8

Data Carrier Detect (RLSD)

15

MOD

n.c.

Mode Select, no connection for DCE cable

n.c.

TxC

15 *

Transmit Clock, connects to DB25-172


1.  This may be ordered in lengths of 10, 25, 50, 75, and 100 feet.The Cisco model number is CAB-5625-xx, where xx is the length, as follows: 10, 25, 50, 75, and 00 = 10, 25, 50, 75, and 100 feet respectively.
2. Pins 15 and 17 connect through a jumper.
3. May be used to force a control pin to stay low or high.

FRI V.35 Port Pin Assignments

Table C-22 contains a listing of IPX V.35 Port pin assignments for the Frame Relay FRI card. A standard V.35 cable is used for this application.


Table C-22: FRI V.35 Port Pin Assignments
Pin # Name Source Description

A

Gnd.

both

Protective (Shield) ground

B

Sig. Gnd.

both

Signal ground

C

RTS

DTE

Request to Send

D

CTS

DCE

Clear to Send

E

DSR

DCE

Data Set Ready

F

DCD

DCE

Data Carrier Detect

H

DTR

DTE

Data Terminal Ready

L

LLB

DTE

Local Loopback command to user device

N

RLB

DTE

Remote Loopback command to user device

n

TM

DTE

Test Mode indicates user device. ready for test

P/S

TxD

DTE

Transmit Data from DTE

R/T

RxD

DCE

Receive Data to DTE

U/W

XTC

DTE

External Transmitter Clock

V/X

RxC

DCE

Receiver Clock

Y/a

TxC

DCE

Transmitter Clock

Port Concentrator Cables

Concentrated Link or X.24/V.11 Cable

This cable is used to connect the PCS to an FRM-2 or FRP-2 card. It can also be used as an X.24/V.11 cable to a user device. Details are provided in Table C-23.


Table C-23: Concentrated Link or X.24/V.11 Cable
PCS
25-pin male 		FRP/FRM 15-pin male Signals

1

1

Shield

7

8

G

2

2

TA

14

9

TB

3

4

RA

16

11

RB

4

3

CA

23

10

CB

8

5

IA

9

12

IB

15

6

SA

13

13

SB

V.28 Interface Cable

The cable described in Table C-24 is used to connect a PCS port with a V.28 interface to a user device.


Table C-24: V.28 Cable
PCS port
25-pin male 		User Device
25-pin male 		Signals

1

1

Shield

2

2

103

3

3

104

4

4

105

5

5

106

6

6

107

8

8

109

15

15

114

7

7

102

17

17

115

18

18

141

20

20

108

21

21

140

10

10

117

9

9

116

22

22

125

23

23

111

25

25

142

V.35 Interface Cable

The cable described in Table C-25 is used to connect a PCS port with a V.35 interface to a user device.


Table C-25: V.35 Cable
PCS port
25-pin male 		User Device
34-pin male 		Signals

17

V

115A

12

X

115B

15

Y

114A

13

AA

114B

3

R

104A

16

T

104B

2

P

103A

14

S

103B

7

B

102

5

D

106

8

F

109

22

J

125

18

L

141

21

N

140

6

E

107

20

H

108

4

C

105

25

NN

142

1

A

Shield

24

U

113A

11

W

113B

X.21bis V.10/V.11 (RS449) DTE Cable

The cable described in Table C-26 is used to connect a PCS port with a V.11 DTE interface to a user device.


Table C-26: X.21bis V.10/V.11 (RS449) DTE Cable
PCS port
25-pin male 		User Device
37-pin male 		Signals

1

1

Shield

7

37

102A

10

20

102B

2

4

103A

14

22

103B

3

6

104A

16

24

104B

4

7

105A

23

25

105B

5

9

106

10

27

102B

6

11

107

10

29

102B

20

12

108

7

30

102A

8

13

109A

9

31

109B

15

5

114A

13

23

114B

17

8

115A

12

26

115B

21

14

140

18

10

141

25

18

142

X.21bis V.10/V.11 (RS449) DCE Cable

The cable described in Table C-27 is used to connect a PCS port with a V.11 DCE interface to a user device.


Table C-27: X.21bis V.10/V.11 (RS449) DCE Cable
PCS port
25-pin male 		User Device
37-pin male 		Signals

1

1

Shield

10

37

102A

7

20

102B

2

4

103A

14

22

103B

3

6

104A

16

24

104B

4

7

105A

23

25

105B

5

9

106

7

27

102B

6

11

107

7

29

102B

20

12

108

10

30

102A

8

13

109A

9

31

109B

15

5

114A

13

23

114B

17

8

115A

12

26

115B

21

14

140

18

10

141

25

18

142

Redundancy Cabling

The redundancy cables are a special "Y" cable available from StrataCom. They are required for redundant data and trunk interfaces. Table C-28 lists the Y-cables used for redundancy for various IPX back cards.


Table C-28: Redundancy Y-Cables
Cable Used On StrataCom P/N

RS-232C

SDI

5624

RS-232D

SDI

5624

RS-232

LDI

5629

V.35

SDI

5635

V.35

SDI

special DTE/DCE jumper

RS-422/449

SDI

5644

T1

BC-T1

5607

E1

BC-E1

5685

Power Cabling

AC Power Cabling

Cable:

Provided with 6 feet of 4-conductor wire with plug.

Connector:

(T1 systems prior to August 1994) 30 A NEMA, Twist Lock, NEMA L14 30R. (T1 systems after July 1994) 20 A NEMA, Twist Lock, NEMA L6 20R. (E1 systems) 32 A 220/240 VAC Type S 32.20 (DIN 49 462) 3-pin plug.

DC Power Cabling

Cable:

Single conductor. Wire gauge determined by distance between IPX and power source. (Contact Customer Service for specific information.)

Connector:

Ring lug for screw terminal block.

SCC Cabling

This cabling connects the Network Management ports on the SCC to StrataView Network Management computers, control terminals, and modems. It is also used for external clock inputs from a clock source.

Auxiliary and Control Port Cabling

Interface:

The IPX SCC auxiliary and control ports are configured as an RS-232 DCE port.

Suggested Cable:

24 AWG, 25-pair. A straight-through RS-232 cable is used for a terminal or printer connection. A null modem cable is needed when interfacing with modems on either port.

Cable Length:

50 feet (15 m.) max.

Cable Connector:

DB-25, subminiature, male. Table C-29 contains a list of the port pin assignments.


Table C-29: SCC AUX. and CONT. Port Pin Assignments
Pin# Name Source Description

1

FG

both

Frame Ground

2

TxD

DTE

Transmit Data

3

RxD

DCE

Receive Data

4

RTS

DTE

Request to Send

5

CTS

DCE

Clear to Send

6

DSR

DCE

Data Set Ready

7

SG

both

Signal Ground

8

CD

DCE

Carrier Detect

20

DTR

DTE

Data Term Ready

Modem Cabling

For modem cabling informations, refer to Appendix B.

External Clock Input Cabling

This cable is for connecting external clock inputs to the SCC EXT. CLK. connector. There are two separate inputs, A and B, for primary and standby clock sources, either one or both of which may be 1.544 Mbps or 2.048 Mbps rate. Details are provided in Table C-30 through Table C-31.


Table C-30: Ext. Clock Cabling Specification
Cable Parameter Description

Interface:

Differential RS 422.

Suggested Cable:

24 AWG, individually shielded, 1 or 2-pair.

Cable Connector:

DB-15, subminiature, male. See Table A-21 for pinouts.

Max. Cable Length:

50 feet (15 m.)
Table C-31: EXT. CLK. Connector Pin Assignments
Pin # Description

1

Ext. Clk 1-A

9

Ext. Clk 1-B

2

Shield gnd. pair 1

3

Ext. Clk 2-A

11

Ext. Clk 2-B

4

Shield gnd. pair 1

5

8.192 MHz. test output1

1For factory use only.

External Alarm Cabling

This cable is for connecting network alarm outputs to the DTI Faceplate, or the ARI card Alarm connector only. Table C-32 and Table C-33 describe the cabling and pinout information for the network alarm outputs.


Table C-32: External Alarm Interface
Parameter Description

Interface:

Dry-contact relay closure.

Wire:

24 AWG, shielded, 10-pair.

Connector:

DB-37, Subminiature, male
Table C-33: Network Alarm Pin Assignments
Pin# Name Description

1

CHASSIS

Chassis Ground

2

Reserved

3

NWMAJA

Network Major Alarm

4

NWMAJC

Network Major Alarm

5

Reserved

6

Reserved

7

Reserved

8

Reserved

9

Reserved

10

MNVISA

Minor Visual Alarm

11

Reserved

12

MNVISC

Minor Visual Alarm

13

Reserved

14

Unused

15

Unused

16

MJAUDC

Major Audible Alarm

17

MJAUDA

Major Audible Alarm

18

Unused

19

Unused

20

Reserved

21

Reserved

22

Reserved

23

NWMINA

Network Minor Alarm

24

Reserved

25

NWMINC

Network Minor Alarm

26

Reserved

27

Reserved

28

Reserved

29

MNAUDA

Minor Audible Alarm

30

Reserved

31

MNAUDC

Minor Audible Alarm

32

Unused

33

Unused

34

Unused

35

MJVISC

Major Visual Alarm

36

MJVISA

Major Visual Alarm

37

Unused
Note Pins whose names end in A are normally open. Pins whose names end in C are common.

Standard IPX Cables

Table C-33 lists the cables that may be ordered directly from StrataCom. Cable lengths are specified as a suffix to the IPX model number. For example, 5610-50 indicates a 50 foot cable. Cables are generally available in standard lengths of 10 ft (3 m.), 25 ft (7.6 m.), 50 ft (15 m.), 75 ft (22.8 m.), and 100 ft (30 m.). Lengths of 101 ft. (30 m.) to 600 ft. (183 m.) are available on a special order.

When a cable is connectorized, the connector gender (male-female) will be indicated as well as the number of pins. For example T1/M15-M15 indicates a cable terminated with a male DB15 at both ends.


Table C-34: Standard IPX Cables
Model# Description Usage

5605

T1, 12 pair, pigtail-pigtail

T1 trunk, general

5608

T1, pigtail to RJ48

CSU to telco demarc

5618

T1, F15 to RJ48

CSU to telco demarc

5619

T1, RJ48 to RJ48

CSU to telco demarc

5609

T1, 2 pair, pigtail-pigtail, Teflon

CSU to DSX; for fire resistance code

5610

T1, 2 pair, pigtail-pigtail

CSU to DSX, echo canceller to chan. bank

5611

T1/M15-pigtail

T1 trunk to CSU, DSX; external echo canceller to PBX, chan. bank.

5612

T1, F15 sliplock-pigtail

same as 5611

5613

T1/F15-pigtail

same as 5611

5614

T1/M15-M15 turnover

E1 trunk to CSU

5615

T1/M15-M15 sliplock

same as 5611

5616

T1/M15-M15

same as 5611

5617

T1/F15 sliplock-RJ48

same as 5610

5618

T1/F15-RJ48

5619

T1/RJ48-RJ48

CSU to connectorized patch panel

5680

BNC-DB15

E1 trunk

5685

T1/M15-M15 turnover, Y-cable

E1 trunk redundancy

5630

V.35/M34-F34

Subrate trunk or data circuit

5633

V.35/M34-M34

Subrate trunk or data circuit

5636

V.35 Y-cable

Subrate trunk or data circuit redundancy

5640

RS-422/M37-F-37

Subrate trunk or data circuit

5643

RS-422/M37-M-37

Subrate trunk or data circuit

5645

RS-422/X.21 adapter-DTE

IPX is DTE

5646

RS-422/X.21 adapter-DCE

IPX is DCE

5644

RS-422 Y-cable

Subrate trunk or data circuit redundancy

5690

X.21/V.11 DTE-M to DCE-M

Subrate trunk or data circuit

5691

X.21/V.11 DTE-M to DCE-F

Subrate trunk or data circuit

5695

X.21/DB15 Y-cable

Subrate trunk or data circuit redundancy

5620

RS-232/M25-F25

Control port to control terminal, StrataView, or ext. window device

5621

RS-232/M25-M25 special

Control or Aux. port to modem

5622

RS-232/M25-M25 special

Aux. port to Okidata 182 printer

5623

RS-232/M25-M25

Aux. port to ext. window device

5625

V.35/M15-F25

LDI8 (DCE) to data device

5626

V.35/M15-M25

LDI8 (DTE) to data device

5628

V.35/M15-F25 adapter

LDI8 (DCE) to data device

5627

V.35/M15-F25 adapter

LDI8 (DTE) to data device

5629

RS 232/M15-M15, Y-cable

LDI redundancy

5651

F50 Amphenol-M50 Amphenol

VF, chan. bank to P66 block

5660

Punch-down block w/F50 Amphenol

VF termination

TBD

75-ohm coax/BNC

T3 trunk to MT3DP connection

TBD

75-ohm coax/BNC-BNC

T3 redundancy

TBD

T1/M15-M15

MT3DP to BC-T1 or DTI

5601

Ground cable

DC

5670

Molex-pigtail

DC

5671

Spade lug-pigtail

DC

Note Most cables listed as T1 can also be used for E1 service.

TTC JJ-20 (J1) Cabling

Cabling information for J1 interface connections to the IPX are detailed in Table C-35 and Table C-36.


Table C-35: Japanese J1 Cabling
Cable Parameter Description

Cable Type:

110 ohm twisted pair for balanced operation. Two cable pairs (1 transmit, 1  receive) per TTC line.

Cable Connection:

Male DB15 for balanced connection. See Table C-36 for pinouts.

Max. Cable Length:

Maximum cable length is determined by the loss in the cable. The maximum permissible loss is 13 dB.
Table C-36: TTC Connector Pin Assignments (balanced)
Pin # Description

2

Send Tip S(T)

9

Send Ring S(R)

4

Receive Tip R(T)

11

Receive Ring R(R)

1

Ground
Note Transmit (send) direction is towards the IPX.

"Y" (Y1) Trunk Cabling

Cabling information for Y1 interface connections to the IPX are detailed in Table C-37 and Table C-38.


Table C-37: Japanese Y1 Cabling
Pin # Description

Cable Type:

110 ohm twisted pair, balanced operation. Two cable pairs
(1 transmit, 1 receive) per Y1 line.

Cable Connection:

Male DB15. SeeTable C-38 for pinouts.

Max. Cable Length:

Maximum cable length is determined by Vp-p (Voltage peak-to-peak). The maximum permissible value is 1 Vp-p.
Table C-38: "Y" Trunk Connector Pin Assignments (balanced)
Pin # Description

2

Transmit Tip T(A)

9

Transmit Ring T(B)

4

Receive Tip R(A)

11

Receive Ring R(B)

1

Shield
Note Transmit direction is towards the "Y" trunk.

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