Rorke Data Galaxy HDX2 GHDX2-2430S-24F4D - Manual (Page 126)

Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual
C-4 Pinouts
C.3. 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.
Figure C-3 : 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 -3 : COM1 Y-Cable CN1 and CN2 Pinout Definitions
C.4. COM2 Serial Port Cable to UPS
COM2 Cable: Use this cable to connect the COM2 port to a UPS.