cc/td/doc/product/dsl_prod/6700
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Table Of Contents

Cabling and Wiring

Power Wiring

Alarm Input and Output Cables

Alarm Outputs

External Alarm Inputs

Backplane Fail-safe Alarm

Alarm Cut-off

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

Power 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 Input 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

Alarm Outputs

Six alarm outputs are used to indicate defined system conditions:

•Alarm outputs 1 through 3 are used for remote alarm distribution, reflecting the state of the three system alarm LEDs (critical, major, and minor).

•Alarm outputs 4 through 6 can be used for audible alarms for each alarm category and are subject to the alarm cut-off control.

Alarm outputs 7 and 8 are reserved for future use.

To provide alarm notification of a pulled or missing AMM module, the alarm output connector contains a fail-safe or bay alarm relay output (labeled Bay Alarm). This alarm will remain active if power is removed from the bank.

Table 3-1 Alarm Output Assignments

Pin Number
Signal Alarm Output

1

Bay Alarm NO

2

Bay Alarm C

3

Bay Alarm 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

36

---

37

---


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

External Alarm Inputs

There are 16 external alarm inputs available through the alarm input cable, each with a configurable name and severity level. The alarm inputs are configurable via the Element Managment System (EMS). By default, alarm input number 1 is assigned to the remote alarm cut-off (ACO) function.

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


Backplane Fail-safe Alarm

To provide alarm notification of a pulled or missing AMM module, the alarm output connector contains a fail-safe or bay alarm relay output (labeled Bay Alarm). This alarm will remain active if power is removed from the bank.

Alarm Cut-off

Alarm input number 1 and the ACO push-button on the front panel of the AMM module provide access to the alarm cut-off function. Pushing the ACO push-button toggles the state of the ACO.

If alarm input number 1 is used for the ACO function, you must wire a momentary push-button to the alarm input. Do not use a toggle switch. The momentary push-button serves the same purpose as the ACO button on the AMM module.

If the ACO is in the on state, the AMM ACO LED will light and alarm outputs 3 through 6 will be cleared. Any new alarms will reactivate the corresponding alarm output.

If the ACO is in the off state, the AMM ACO LED will be off and alarm outputs 1 through 3 will remain in their current states.

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


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


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


Subscriber Backplane 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 3-5 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

-


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.

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Posted: Wed Jan 12 14:54:04 PST 2005
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