Apc AP9608 User Manual download pdf (Page 13)

Any changes to Call-

UPS II communication settings are held until the end

of the session. Changes are made when Call-

UPS II issues modem com-

mands at that time.

Connect to Modem

Call-UPS II requires a modem for remote UPS control and paging. If a

modem is used with Call-

UPS II, some thought must be given to powering

it. Plugging the modem into the protected power output of the

UPS will

keep the modem operating in bad power conditions, but remote turn-on

of the

UPS will not be possible since, when the UPS is off, the modem

is off. By plugging the modem into a wall socket, remote turn-on of the

UPS will work, but the modem will have to get by with unprotected

power. Also, it is possible in this situation to miss pages, since the

modem would be off in a power outage that Call-

UPS II tries to report by

paging.

A better option is to use a modem designed for portable computers that

draws power from the computer. Call-

UPS II will power such a modem,

providing protected power whether the

UPS is on or off. Be careful to use

a modem that draws power from Call-

UPS II, not a battery.

The configuration is complete. Disconnect the management device from

Call-UPS II. Connect the Call-UPS II according to the appropriate system

connection diagram on the following page.

Note: Use a standard modem cable to make this connection. Do not

use the null modem cable supplied with Call-

UPS II.

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Apc AP9608 User Manual Page 13