HP PowerTrust A3589A Manual page 34

Overview
Control Panel Switches and Indicators
Access Plate
4
EPO Terminals
5
UPS Port
6
NOTE A special cable is required to connect to the UPS Port. Although the UPS Port
appears to be a standard 9-pin RS-232 connector, it has a non-standard
pinout. Use one of these RS-232 cables:
5061-2575
5061-2569
5053-5352
If the wrong cable is used, the UPS will still function as stated in this
manual, but the error messages and status logging described in Appendix A,
"HP-UX UPS Monitor Error Messages." and Appendix B, "MPE/iX UPS
Monitor Error Messages." will not be supported.
1-12
This plate provides access to the terminal block where hardwired
connections can be made.
A pair of screw terminals is provided for connection to an Emergency
Power Off (EPO) system. For normal operation, these terminals must be
connected by a jumper or by the EPO system. Removing the connection
causes the UPS AC output to shut down. The output remains shut off until
the terminals are connected again, and the Output On/Output Off switch
on the control panel is cycled (
Bypass switch is set to
AC output.
A 9-pin D-type connector, used for connection to a computer system.
Through this connection the UPS reports its status and can be controlled
by an external device.
9-pin male/9-pin female (2.5 meter)
9-pin male/25-pin male (2.5 meter)
9-pin male/25-pin male (4 meter)
, then
Output Off Output On
, the EPO has no effect on the PowerTrust
BYPASS
). If the Service
Chapter 1