3Com 2103R-CSDI Installation Manual page 77

RS-232 DTE and DCE Serial Cable Pinouts
Table A-14 lists pinouts for:
RS-232 DTE synchronous serial cable (Part Number ERM232-CAB)
RS-232 DCE synchronous serial cable (Part Number ERF232-CAB)
)
Table A-14 RS-232 DTE and DCE Cable Pinouts (DB-25)
1
25 Pin Signal
J2-1 Shield GND
J2-2 Shield TxD
—
J2-3 Shield RxD
—
J2-4 Shield RTS
—
J2-5 Shield CTS
—
J2-6 Shield DSR
—
1
Any pin not referenced is not connected.
DTE DCE
Direction 25 Pin
— J2-7
Shield
J2-8
Shield
—
J2-15
Shield
—
J2-17
Shield
—
J2-18
Shield
—
J2-20
Shield
—
J2-24
Shield
Cable Pinouts A-11
DTE DCE
Signal Direction
Circuit GND —
— —
DCD
—
—
TxC
—
—
RxC
—
—
LTST
—
—
DTR
—
—
TxCE
—
—