Cisco 7000 Series Hardware Installation And Maintenance Manual page 256

MIP Interface Cable Pinouts
Signal Name
Ground
Loopback (not
connected)
Not used
MIP Interface Cable Pinouts
The MIP T1 interface cables have two, male, 15-pin DB connectors (one at each end) to connect the
MIP with the external CSU. Table A-16 lists the pinouts for the null-modem T1 cable, and
Table A-17 lists the pinouts for the straight-through T1 cable. Table A-18 lists the pinouts for the E1
interface cables.
Table A-16
15-Pin DB
Connector
Signal
Tx tip
Rx tip
Tx ring
Rx tip
1. Tx = transmit.
2. Rx = receive.
Table A-17
15-Pin DB
Connector
Signal
Tx tip
Tx ring
Rx tip
Rx tip
1. Tx = transmit.
2. Rx = receive.
A-14 Cisco 7010 Hardware Installation and Maintenance
From Pins
1, 26,
7, 32,
13, 38,
19, 44,
25, 50
12, 37
14–18, 20–24,
39–43, 45–49
T1 Null-Modem Cable Signals
Pin Pin
1
1 3
2
3 1
9 11
11 9
T1 Straight-Through Cable Signals
Pin Pin
1
1 1
2
9 9
3 3
11 11
Direction
15-Pin DB
Connector
Signal
Rx tip
Tx tip
Rx tip
Tx ring
15-Pin DB
Connector
Signal
Tx tip
Tx ring
Rx tip
Rx tip
To Pins Signal Name
1, 26, Ground
7, 32,
13, 38,
19, 44,
25, 50
12, 37 Loopback (not
connected)
14–18, Not used
20–24,
39–43,
45–49