4Secure the Call-UPSII with the screws removed in step 2.
5Turn on the UPS and the protected equipment.
External Version
It is not necessary to turn off the the UPS or its load before connecting or disconnecting the external Call-UPSII. When connected, Call-UPSII may cause the UPS to beep, or, if the UPS is powered off, to power on. This is normal.
Use only APC-supplied cables to connect the external version
of Call-UPSII to the UPS. Do not connect to any Call-UPSII port except as specified in these instructions. Connections using a cable or any other manufacturer may cause damage to or improper operation of Call-UPSII, the UPS, or the computer.
If a device such as a server or workstation is currently using the communi- cations port on the back of the UPS, disconnect it now according to the UPS connection instructions. Connect that device securely to the UPS Monitoring Port on Call-UPSII. See Sec. 2.5 to determine if the optional power adapter is required.
3.4 Confirm Operation
Observe the status indicator on Call-UPSII. After a moment it should
be on continuously. If the indicator flashes rapidly, Call-UPSII has failed its power-on self-test. See Chapter 5.
