AT&T 3B2/300 Technical Reference Manual page 739

- - - - - - - - - - - - - - - - A p p e n d i x : CONNECTOR AND CABLING INFORMATION
8-PIN CM195B/CM195BA PORTS CARD MODULAR CONNECTORS, Jl through J4
PIN DESCRIPTION
FUNCTION
1 GROUND
GROUND
2
NOT USED NC
3
TRANSMIT DATA (TXD)
INPUT
4
DATA TERMINAL READY (DTR) INPUT
5
RECEIVE DATA (RXD)
OUTPUT
6
DATA CARRIER DETECT (DCD) OUTPUT
7
GROUND
GROUND
8
NOT USED NC
LEGEND:
NC
No Connection
CONNECTOR AND CABLING INFORMATION B-157