
EIA 422 DB-25 Pinouts for Sync Boards
Sync 570 (EIA-232 only), Sync 570i (EIA-232/V.35), Sync 570i UIB (PCI boards), Syncport,
Sync 2000.
• Sync 2000 single port EIA-530/EIA-422 DB-25 cable - Part #77000425
• Sync 570i UIB single port EIA-530/EIA-422 DB-25 cable - Part #76000369
• Sync 570i 2 port EIA-530/EIA-422 DB-25 - - Part #62500039
• Sync 570i 4 port cable (one port EIA-530/EIA-422) - Part #62500048
DB-
25
Direction Signal
1 ↔ CGND
2 TxD+
3 RxD+
4 RTS+
5 CTS+
6 DCE Ready +
7 ↔ SG
8
Received Line Signal
Indicator +
9 RxClk +
10
Recieved Lne Signal
Indicator -
11 TxClk External +
12 TxClk Internal -
13 CTS-
14 TxD-
15 TxClk Internal +
16 RxD-
17 RxClk-
19 RTS-
20 DTE Ready +
22 DCE Ready +
23 DTE Ready -
24 TxClk External -
Shell ↔ GND
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