3Com 2103R-CSDI Installation Manual page 76

A-10 A A: S
PPENDIX PECIFICATIONS
EIA-530 DTE Synchronous Serial Cable Pinouts
Table A-13 lists pinouts for EIA-530 DTE synchronous serial cable
(Part Number ERM530-CAB).
Table A-13 EIA-530 DTE Cable Pinouts (DB-25)
1
25 Pin Signal
J2-1 Shield
— —
J2-2 BA(A), TxD+
J2-14 BA(B), TxD-
J2-3 BB(A), RxD+
J2-16 BB(B), RxD-
J2-4 CA(A), RTS+
J2-19 CA(B), RTS-
J2-5 CB(A), CTS+
J2-13 CB(B), CTS-
J2-6 CC(A), DSR+
J2-22 CC(B), DSR-
1
Any pin not referenced is not connected.
2
The EIA-530 interface cannot be operated in DCE mode. A DCE cable is not available for the EIA-530 interface.
Direction
2
DTE DCE 25 Pin
— J2-8
— J2-10
J2-15
J2-12
J2-17
J2-9
J2-18
J2-7
J2-20
J2-23
J2-24
J2-11
DTE DCE
Signal Direction
CF(A), DCD+
CF(B), DCD-
DB(A), TxC+
DB(B), TxC-
DD(A), RxC+
DD(B), RxC-
LL
Circuit GND
—
CD(A), DTR+
CD(B), DTR-
DA(A), TxCE+
DA(B), TxCE-