Rs-449 Dte And Dce Serial Cable Pinouts - 3Com 2103R-CSDI Installation Manual

A-12 A A: S
PPENDIX PECIFICATIONS

RS-449 DTE and DCE Serial Cable Pinouts

Table A-15 lists pinouts for:
RS-449 DTE synchronous serial cable (Part Number ERM449-CAB)
RS-449 DCE synchronous serial cable (Part Number ERF449-CAB)
Table A-15 RS-449 DTE and DCE Cable Pinouts (DB-37)
1
37 Pin Signal
J2-1 Shield GND
J2-4 SD+
J2-22 SD-
J2-5 ST+
J2-23 ST-
J2-6 RD+
J2-24 RD-
J2-7 RS+
J2-25 RS-
J2-8 RT+
J2-26 RT-
1
Any pin not referenced is not connected.
DTE DCE
Direction 37 Pin
— J2-9
J2-27
J2-10
J2-37
J2-11
J2-29
J2-12
J2-30
J2-13
J2-31
J2-17
J2-35
J2-19
J2-20
DTE DCE
Signal Direction
CS+
CS-
LL
SC
—
DM+
DM-
TR+
TR-
RR+
RR-
TT+
TT-
SG —
RC —