Datasheet

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Table C-29 Wiring List, SDI EIA/TIA-449-to-X.21 Adapter Cable (for EIA/TIA-449 DCE)
Table C-30 Wiring List, SDI EIA/TIA-449 to X.21 Adapter Cable (for EIA/TIA-449 DTE)
DB-37 Pin No.
(SDI) IGX Name
DB-15 Pin No.
(User) Description
1 Drain 1 Frame Ground
4 TxD-A 2 Transmit Data from DTE
22 TxD-B 9 Transmit Data from DTE
6 RxD-A 4 Receive Data to DTE
24 RxD-B 11 Receive Data to DTE
7 RTS-A 3 Request to Send
25 RTS-B 10 Request to Send
9 CTS-A 5 Clear to Send
27 CTS-A 12 Clear to Send
8 RxC-A 6 Receive Clock
26 RxC-B 13 Receive Clock
19 SG 8 Signal Ground
DB-37 Pin No.
(SDI) IGX Name
DB-15 Pin No.
(User) Description
1 Drain 1 Frame Ground
4 TxD-A 2 Transmit Data from DTE
22 TxD-B 9 Transmit Data from DTE
6 RxD-A 4 Receive Data to DTE
24 RxD-B 11 Receive Data to DTE
7 RTS-A 3 Request to Send
25 RTS-B 10 Request to Send
9 CTS-A 5 Clear to Send
27 CTS-A 12 Clear to Send
5 TxC-A 6 Transmit Clock
23 TxC-B 13 Transmit Clock
19 SG 8 Signal Ground
5 to 8 TxC-A Receive Clock
1
1. Loops Receive Clock to Transmit Clock when necessary.
23 to 26 TxC-B Receive Clock *