ENGLISH
Page 19
792519-001 Edition 1
ENGLISH
3. Installation
3.5 Communication ports
Connection of RS-232 or USB communication port (optional)
The RS-232 and USB communication ports cannot operate simultaneously.
16
17
34
33
or
or
1. Connect the RS-232(
16
or
33
) or
USB (
17
or
34
) communication
cable to the serial or USB port on
the computer equipment.
2. Connect the other end of the com-
munication cable to the USB
1
or
RS-232
2
communication port on
the UPS.
The UPS can now communicate with
HP power management software.
Installation of optional NMC Network Card
It is not necessary to shut down the UPS before installing a communication card.
1. Remove the mounting screws and
remove the slot cover
4
.
2. Insert the communication
card in the slot.
3. Secure the card cover with
the screws removed in Step 1.
When a signal is activated, the contact is closed between the common (pin 2) and the pin for the corresponding signal.
Contact characteristics (optocoupler)
• Voltage: 48 Vdc max
• Current: 25 mA max
• Power: 1.2W
Characteristics of the optocoupler RS-232 communications port
• Pins 1, 3, 4, 5, 6, 10: not used
• Pin 2: common (user)
• Pin 7: low battery
• Pin 8: operation on battery power
• Pin 9: UPS on, equipment sup-
plied
no: normally open contact
