
Sync V.24 DB-25 Connector Pinout
V.24 (EIA-232) Pinout
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
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
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