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Appendix C: Pinouts
COM1 Cable: DB9
Audio Jack Y-Cable Pinouts
C-3
C.2 COM1 Cable: DB9 Audio Jack Y-Cable
Pinouts
The 2-audio jacks to DB9 Y-cable connects the COM1 serial ports on the
redundant RAID controllers for maintenance-free terminal emulation
connection during controller failover/failback.
GAL-9270AYCab
Figure C-2: COM1 Cable CN1 and CN2 Connectors
CN1 Pin Number
Pin Name
1 Ground
2 TXD
3 RXD
CN2 Pin Number
Pin Name
1 NC
2 RXD
3 TXD
4 DTR
(Shorted)
5 GND
6 DSR
(Shorted)
7 RTS
(Shorted)
8 CTS
(Shorted)
9 NC
Table C-2: COM1 Cable CN1 and CN2 Pinout Definitions