
SCSI Terminal Server DB-25M to DB-9M Modem Cable
Modem Cables
Modem Cables DB-25 to DB-9
EIA-232 Boards which require DB-25 Male Cables Connectors- SCSI Terminal Server ST1002, SCSI
Terminal Server ST1008, SCSI Terminal Server ST1016, SCSI Terminal Server ST1600
The wiring diagram for a DB-25 to DB-9 modem cable is shown in Table 1.
Table 1: EIA-232 DB-25 to DB-9 modem cable
From
DB-
25
Signal Direction Signal To DB-9
8 DCD DCD 1
3 RxD
RxD 2
2 TxD
TxD 3
20 DTR
DTR 4
7SG
SG 5
6 DSR
DSR 6
4 RTS
RTS 7
5 CTS
CTS 8
22 RI
RI 9
Shell GND
GND Shell
* Arrows indicate which direction the signal is flowing
NOTES:
●
This cable utilizes the CTS signal of the modem for hardware flow control (RTS/CTS).
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