V.24 (EIA-232) Boards with DB-25 cable assemblies (see part numbers for cables below) - Sync 570 (EIA-232 only), Sync 570i (EIA-232/V.35), Sync 570i UIB (PCI boards), Syncport, Sync 2000.

• Sync 2000 single port EIA-232 (V.24) DB-25 cable       - Part #77000428
• Sync 570i UIB single port EIA-232 DB-25 cable - Part #76000293
• Sync 570/570i 2 port EIA-232 DB-25 -    - Part #62500037
• Sync 570/570i 4 port EIA-232 DB-25 - Part #62500036

Click below for crossover cable and loopback diagrams.

• Modem CablesDB-9 to DB-25.
• ModemCables DB-9 to USR/COMPAQ RJ-45 8-pin.

DB-25	Direction	Signal
1		CGND
2		TxD+
3		RxD+
4		RTS
5		CTS
6		DSR
7		GND
8		DCD
15		TxClk Internal
17		RxClk
20		DTR
24		TxClk External
Shell		GND

NOTES:

• For information regarding the EIA-232/EIA-422/EIA-485/EIA-449/V.35/X.21 specifications, click here.