Cabling and Wiring

Power Wiring

Alarm Inputs and Output Cables

Alarm Input and Output Wiring

Line Interface Module Cables

FXS/16, RPOTS/16, RUVG/8, ISDN-BRI/8, and MSDSL-2W (2-Wire) Cabling

DSX1/8 (4-Wire) Cabling

Subscriber Backplane Wiring

T1-2-V35 Cable

DSX3/CHNL and STSX1/CHNL Cables

1:1 Protection Cables

OC3c-UNI Cables

MTAC-TEI Cables

Cabling and Wiring

Caution The following backplane information is provided exclusively for use by a Cisco certified technician or field engineer. Removing the backplane of the Cisco 6732 full access device chassis can void the limited warranty. Please contact Cisco Systems' technical assistance center (TAC) before making any modifications to the chassis.

Figure 3-1: Cisco 6732 Backplane Power Wiring Terminals

Alarm Inputs and Output Cables

Cisco uses a cable with a 25-pin female D-subconnector for alarm inputs and a cable with a 37-pin female D-subconnector for alarm outputs. Refer to Figure 3-2 for cable specifications.

Figure 3-2: Alarm Input and Output Cables

Pin Number	Signal Alarm Output/State
1	BALRM NO
2	BALRM C
3	BALRM NC
4	---
5	---
6	1 NO
7	1 C
8	1 NC
9	5 NO
10	5 C
11	5 NC
12	---
13	---
14	2 NO
15	2 C
16	2 NC
17	6 NO
18	6 C
19	6 NC
20	---
21	---
22	3 NO
23	3 C
24	3 NC
25	7 NO
26	7 C
27	7 NC
28	---
29	---
30	4 NO
31	4 C
32	4 NC
33	8 NO
34	8 C
35	8 NC

Pin Number	Signal Alarm Input/State
1	ALARM IN -1
2	ALARM IN -2
3	ALARM GND -1
4	ALARM IN -3
5	ALARM IN -4
6	ALARM GND -2
7	ALARM IN -5
8	ALARM IN -6
9	ALARM GND -3
10	ALARM IN -7
11	ALARM IN -8
12	ALARM GND -4
13	ALARM IN -9
14	ALARM IN -10
15	ALARM GND -5
16	ALARM IN -11
17	ALARM IN -12
18	ALARM GND -6
19	ALARM IN -13
20	ALARM IN -14
21	ALARM GND -7
22	ALARM IN -15
23	ALARM IN -16
24	ALARM GND -8

Table 3-1: Alarm Output Assignments

Pin Number Signal Alarm
Output/State

1

BALRM NO

2

BALRM C

3

BALRM NC

4

---

5

---

6

1 NO

7

1 C

8

1 NC

9

5 NO

10

5 C

11

5 NC

12

---

13

---

14

2 NO

15

2 C

16

2 NC

17

6 NO

18

6 C

19

6 NC

20

---

21

---

22

3 NO

23

3 C

24

3 NC

25

7 NO

26

7 C

27

7 NC

28

---

29

---

30

4 NO

31

4 C

32

4 NC

33

8 NO

34

8 C

35

8 NC

C = Closed, NC = Normally Closed, NO = Normally Open

Table 3-2: Alarm Input Assignments

Pin Number Signal Alarm
Input/State

1

ALARM IN -1

2

ALARM IN -2

3

ALARM GND -1

4

ALARM IN -3

5

ALARM IN -4

6

ALARM GND -2

7

ALARM IN -5

8

ALARM IN -6

9

ALARM GND -3

10

ALARM IN -7

11

ALARM IN -8

12

ALARM GND -4

13

ALARM IN -9

14

ALARM IN -10

15

ALARM GND -5

16

ALARM IN -11

17

ALARM IN -12

18

ALARM GND -6

19

ALARM IN -13

20

ALARM IN -14

21

ALARM GND -7

22

ALARM IN -15

23

ALARM IN -16

24

ALARM GND -8

Alarm Input and Output Wiring

Caution The following backplane information is provided exclusively for use by a Cisco certified technician or field engineer. Removing the backplane of the Cisco 6732 chassis can void the limited warranty. Please contact Cisco Systems' technical assistance center (TAC) before making any modifications to the chassis.

Figure 3-3: Alarm Connections on the Cisco 6732 Backplane

Line Interface Module Cables

The Cisco 6732 backplane line interface module connections are prewired at the factory with cables that are terminated with 50-wire (25-pair) male RJ-21 connectors (also referred to as AMP-Champ). These cables must be terminated into female RJ-21 cables to mate the two cables. Figure 3-4 shows the pin placements on the male RJ-21 connector.

Figure 3-4: AMP-Champ Pin Assignments

Table 3-3 contains the wiring configuration for Cisco 6732 line interface module cables. The wiring is organized in logical cable groups. Up to three line interface modules can be configured with each cable.

Caution Do not mix 4-wire (DSX/1) and 2-wire (analog, ISDN/BRI-8, or MSDSL-2W) connections on the same cable.

Table 3-3: Subscriber Cabling (Logical Grouping)

Cable LIM Slots 2-Wire Lines 4-Wire Lines

P1

2-4

1-8

1-8 Tx

P2

2-4

9-16

1-8 Rx

P3

5-7

1-8

1-8 Tx

P4

5-7

9-16

1-8 Rx

P5

8-10

1-8

1-8 Tx

P6

8-10

9-16

1-8 Rx

P7

11-13

1-8

1-8 Tx

P8

11-13

9-16

1-8 Rx

P9

14-16

1-8

1-8 Tx

P10

14-16

9-16

1-8 Rx

P11

17-19

1-8

1-8 Tx

P12

17-19

9-16

1-8 Rx

P13

20-22

1-8

1-8 Tx

P14

20-22

9-16

1-8 Rx

P15

23-25

1-8

1-8 Tx

P16

23-25

9-16

1-8 Rx

P17

26-28

1-8

1-8 Tx

P18

26-28

9-16

1-8 Rx

P19

29-31

1-8

1-8 Tx

P20

29-31

9-16

1-8 Rx

P21

32 & 1

1-8

1-8 Tx

P22

32 & 1

9-16

1-8 Rx

Cable	LIM Slots	2-Wire Lines	4-Wire Lines
P1	2-4	1-8	1-8 Tx
P2	2-4	9-16	1-8 Rx
P3	5-7	1-8	1-8 Tx
P4	5-7	9-16	1-8 Rx
P5	8-10	1-8	1-8 Tx
P6	8-10	9-16	1-8 Rx
P7	11-13	1-8	1-8 Tx
P8	11-13	9-16	1-8 Rx
P9	14-16	1-8	1-8 Tx
P10	14-16	9-16	1-8 Rx
P11	17-19	1-8	1-8 Tx
P12	17-19	9-16	1-8 Rx
P13	20-22	1-8	1-8 Tx
P14	20-22	9-16	1-8 Rx
P15	23-25	1-8	1-8 Tx
P16	23-25	9-16	1-8 Rx
P17	26-28	1-8	1-8 Tx
P18	26-28	9-16	1-8 Rx
P19	29-31	1-8	1-8 Tx
P20	29-31	9-16	1-8 Rx
P21	32 & 1	1-8	1-8 Tx
P22	32 & 1	9-16	1-8 Rx

FXS/16, RPOTS/16, RUVG/8, ISDN-BRI/8, and MSDSL-2W (2-Wire) Cabling

Table 3-4 contains the 2-wire circuit-to-tip/ring legend mapping scheme.

Table 3-4: 2-Wire Circuit Tip/Ring Post Mapping

LIM Slot Circuit Tip/Ring Pin Assignments Circuit Tip/Ring Pin Assignments

2

1

P1: 26, 1

9

P2: 26, 1

2

2

P1: 27, 2

10

P2: 27, 2

2

3

P1: 28, 3

11

P2: 28, 3

2

4

P1: 29, 4

12

P2: 29, 4

2

5

P1: 30, 5

13

P2: 30, 5

2

6

P1: 31, 6

14

P2: 31, 6

2

7

P1: 32, 7

15

P2: 32, 7

2

8

P1: 33, 8

16

P2: 33, 8

3

1

P1: 34, 9

9

P2: 34, 9

3

2

P1: 35, 10

10

P2: 35, 10

3

3

P1: 36, 11

11

P2: 36, 11

3

4

P1: 37, 12

12

P2: 37, 12

3

5

P1: 38, 13

13

P2: 38, 13

3

6

P1: 39, 14

14

P2: 39, 14

3

7

P1: 40, 15

15

P2: 40, 15

3

8

P1: 41, 16

16

P2: 41, 16

4

1

P1: 42, 17

9

P2: 42, 17

4

2

P1: 43, 18

10

P2: 43, 18

4

3

P1: 44, 19

11

P2: 44, 19

4

4

P1: 45, 20

12

P2: 45, 20

4

5

P1: 46, 21

13

P2: 46, 21

4

6

P1: 47, 22

14

P2: 47, 22

4

7

P1: 48, 23

15

P2: 48, 23

4

8

P1: 49, 24

16

P2: 49, 24

LIM Slot	Circuit	Tip/Ring Pin Assignments	Circuit	Tip/Ring Pin Assignments
2	1	P1: 26, 1	9	P2: 26, 1
2	2	P1: 27, 2	10	P2: 27, 2
2	3	P1: 28, 3	11	P2: 28, 3
2	4	P1: 29, 4	12	P2: 29, 4
2	5	P1: 30, 5	13	P2: 30, 5
2	6	P1: 31, 6	14	P2: 31, 6
2	7	P1: 32, 7	15	P2: 32, 7
2	8	P1: 33, 8	16	P2: 33, 8
3	1	P1: 34, 9	9	P2: 34, 9
3	2	P1: 35, 10	10	P2: 35, 10
3	3	P1: 36, 11	11	P2: 36, 11
3	4	P1: 37, 12	12	P2: 37, 12
3	5	P1: 38, 13	13	P2: 38, 13
3	6	P1: 39, 14	14	P2: 39, 14
3	7	P1: 40, 15	15	P2: 40, 15
3	8	P1: 41, 16	16	P2: 41, 16
4	1	P1: 42, 17	9	P2: 42, 17
4	2	P1: 43, 18	10	P2: 43, 18
4	3	P1: 44, 19	11	P2: 44, 19
4	4	P1: 45, 20	12	P2: 45, 20
4	5	P1: 46, 21	13	P2: 46, 21
4	6	P1: 47, 22	14	P2: 47, 22
4	7	P1: 48, 23	15	P2: 48, 23
4	8	P1: 49, 24	16	P2: 49, 24

DSX1/8 (4-Wire) Cabling

Table 3-5 contains the DSX1 circuit-to-tip/ring legend mapping scheme.

Table 3-5: DSX1 Circuit Tip/Ring Post Mapping

DSX1 Tip/Ring Pair Tip/Ring Pin Assignments

XMT1

T1, R1

P1: 26, 1

XMT2

T2, R2

P1: 27, 2

XMT3

T3. R3

P1: 28, 3

XMT4

T4, R4

P1: 29, 4

XMT5

T5, R5

P1: 30, 5

XMT6

T6, R6

P1: 31, 6

XMT7

T7, R7

P1: 32, 7

XMT8

T8, R8

P1: 33, 8

RCV1

T9, R9

P2: 26, 1

RCV2

T10, R10

P2: 27, 2

RCV3

T11, R11

P2: 28, 3

RCV4

T12, R12

P2: 29, 4

RCV5

T13, R13

P2: 30, 5

RCV6

T14, R14

P2: 31, 6

RCV7

T15, R15

P2: 32. 7

RCV8

T16, R16

P2: 33, 8

DSX1	Tip/Ring Pair	Tip/Ring Pin Assignments
XMT1	T1, R1	P1: 26, 1
XMT2	T2, R2	P1: 27, 2
XMT3	T3. R3	P1: 28, 3
XMT4	T4, R4	P1: 29, 4
XMT5	T5, R5	P1: 30, 5
XMT6	T6, R6	P1: 31, 6
XMT7	T7, R7	P1: 32, 7
XMT8	T8, R8	P1: 33, 8
RCV1	T9, R9	P2: 26, 1
RCV2	T10, R10	P2: 27, 2
RCV3	T11, R11	P2: 28, 3
RCV4	T12, R12	P2: 29, 4
RCV5	T13, R13	P2: 30, 5
RCV6	T14, R14	P2: 31, 6
RCV7	T15, R15	P2: 32. 7
RCV8	T16, R16	P2: 33, 8

Subscriber Backplane Wiring

Figure 3-5: Tip/Ring Legend for RPOTS Termination

Figure 3-6: FXS/16, RPOTS/16, RUVG/8, ISDN-BRI/8, and MSDSL-2W Wiring Configuration

Figure 3-7: DSX1/8 Wiring Configuration

T1-2-V35 Cable

The T1-2-V35 card ships with a 5-foot V.35 cable that provides connectivity to Cisco 1000 and Cisco 4500 series routers. You can order a spare using product number CAB-67-011=. Table 3-6 lists pin assignments for the V.35 cable.

Table 3-6: T1-2-V35 Cable Pinouts

Signal No. From DB-25 To V.35 Signal Name Pair

R

16

P1-1

RXDP

1

T

3

P1-2

RXDN

Y

12

P1-3

TXCCP

2

AA

15

P1-4

TXCCN

V

9

P1-5

RXCP

3

X

17

P1-6

RXCN

S

2

P1-7

TXDN

4

P

14

P1-8

TXDP

W

24

P1-9

TXCN

5

U

11

P1-10

TXCP

D

5

P1-11

CTS

6

C

4

P1-12

RTS

K

18

P1-13

LL

7

E

6

P1-14

DSR

H

20

P1-15

DTR

8

F

8

P1-16

DCD

No Connect

21

P1-17

RL

9

No Connect

25

P1-18

TM

B

7

P1-19

SIG GND

10

A

1

P1-20

FRM GND

-

-

P1-21

-

11

-

-

P1-22

-

-

-

P1-23

-

12

-

-

P1-24

-

-

-

P1-25

-

13

-

-

P1-26

-

Signal No.	From DB-25	To V.35	Signal Name	Pair
R	16	P1-1	RXDP	1
T	3	P1-2	RXDN
Y	12	P1-3	TXCCP	2
AA	15	P1-4	TXCCN
V	9	P1-5	RXCP	3
X	17	P1-6	RXCN
S	2	P1-7	TXDN	4
P	14	P1-8	TXDP
W	24	P1-9	TXCN	5
U	11	P1-10	TXCP
D	5	P1-11	CTS	6
C	4	P1-12	RTS
K	18	P1-13	LL	7
E	6	P1-14	DSR
H	20	P1-15	DTR	8
F	8	P1-16	DCD
No Connect	21	P1-17	RL	9
No Connect	25	P1-18	TM
B	7	P1-19	SIG GND	10
A	1	P1-20	FRM GND
-	-	P1-21	-	11
-	-	P1-22	-
-	-	P1-23	-	12
-	-	P1-24	-
-	-	P1-25	-	13
-	-	P1-26	-

DSX3/CHNL and STSX1/CHNL Cables

The STSX1/CHNL and DSX3/CHNL line interface modules each ship with two 18-inch coaxial SMB female to coaxial BNC male cables. Connect the cables to the transmit (Tx) and receive (Rx) coaxial connectors terminals of the line interface module. You can order a spare using product number CAB-SMB-BNC=. Cisco recommends 75-ohm telecommunications cables for these connections (RG 59/U Type, 20AWG [solid]).

1:1 Protection Cables

One to one (1:1) protection of the STSX1/CHNL and DSX3/CHNL line interface modules is achieved through a pair of coaxial Y cables installed on the Tx and Rx coaxial connectors of the protected modules. You can order a spare pair of 1:1 protection cables using product number CAB-1X1PRO=.

To install 1:1 protection cables, connect the female connectors at each end of the Y cable to the Tx terminals of two adjacent line interface modules. Connect the male connector in the middle of the Y cable to the SMB female coaxial connector of a DSX3/CHNL or STSX1/CHNL cable. Repeat this procedure for the Rx terminals using the other Y cable.

Caution Do not twist or turn the female coaxial connectors (connecting to the Tx or Rx terminals on the line interface modules). To change orientation of the Y cable, rotate the male connector in the middle.

Note After the 1:1 protection cables are installed, 1:1 protection must be activated using the Cisco 6700 Series Element Management System (EMS).

OC3c-UNI Cables

The OC3c-UNI line interface module has a female duplex SC connector on the faceplate. You must supply a single-mode intermediate reach fiber cable to connect to the connector.

MTAC-TEI Cables

The MTAC-TEI service module uses prewired cables on the Cisco 6732 chassis to connect with third-party test equipment. For information on MTAC-TEI cabling, refer to the Release Notes for Cisco 6700 Series Devices.

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