Cabling Specifications A-261
MIP Interface Cable Pinouts
MIP Interface Cable Pinouts
The MIP 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 T1 Null-Modem Cable Pinouts
Table A-17 T1 Straight-Through Cable Pinouts
Send Data 11, 36 —> 4, 29 Receive Data
Ground 1, 26,
7, 32,
13, 38,
19, 44,
25, 50
1, 26,
7, 32,
13, 38,
19, 44,
25, 50
Ground
Loopback (not connected) 12, 37
12, 37 Loopback (not connected)
Not used 14–18,
20–24,
39–43,
45–49
14–18,
20–24,
39–43,
45–49
Not used
15-Pin DB
Connector
15-Pin DB
Connector
Signal Pin Pin Signal
Transmit tip 1 3 Receive tip
Receive tip 3 1 Transmit tip
Transmit ring 9 11 Receive tip
Receive tip 11 9 Transmit ring
15-Pin DB
Connector
15-Pin DB
Connector
Signal Pin Pin Signal
Transmit tip 1 1 Transmit tip
Transmit ring 9 9 Transmit ring
Receive tip 3 3 Receive tip
Receive tip 1111Receive tip
Signal Name From Pins Direction To Pins Signal Name