AT&T 3B2/300 Technical Reference Manual page 828

Appendix: CONNECTOR AND CJlBLING I N F O R M A T I O N - - - - - - - - - - - - - - - -
r--------------------------,r--------------------------,
COMPUTER/PORTS CARD
PLUG CONNECTOR
8
~
8
8
TERMINAL/PRINTER/MODEM
PLUG CONNECTOR
8 1
~
GROUND
LUG (PIN I)
L--------------------------JL--------------------------J
PIN
SIGNAL NAME
8 RESERVED (REQUEST TO SEND)
7
SIGNAL GROUND (SG)
6 DATA CARRIER DETECT (DCD)
5
RECEIVE DAT A (RXD)
4
DATA TERMINAL READY (DTR)
3
TRANSMIT DAT A (TXD)
2 RESERVED (CLEAR TO SEND)
1
FRAME GROUND (FG)
Figure B-42: 8-Conductor Modular Cable Connector Pin Identification
B-246 TECHNICAL REFERENCE MANUAL