Appendix C: Pinouts
Figure C-2: COM1 Serial Port Cable
P2 Pin Number
Pin Name
1 GND
2 TXD
3 RXD
P1 Pin Number
Pin Name
1 NC
2 RXD
3 GND
4 DTR
(Shorted)
5 TXD
6 DSR
(Shorted)
7 RTS
(Shorted)
8 CTS
(Shorted)
9 NC
Table C-2: COM1 Serial Port Cable Pinout Definitions
B.3
COM1 Serial Port 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.
B-3