Calling A Modem - Liebert 300 series Installation, Operaton & Maintenance Manual

number. When you have finished editing the
service number, the "Pager Disabled" field wiIl
begin to blink. At this point, pressing either
the UP or DOWN buttons will cause line 3 to be
replaced with an edit field for the display
number:
Pager Delay: 13
Once this field is displayed, pager mode is
enabled. Note: If you change your mind and
want to disable pager mode, press either the UP
or DOWN buttons while the iirst character on
line 3 is blinking. At some point the "Pager
Disabled" message will be displayed; you should
then press ALARM SILENCE to continue.
Line 3 can be edited to contain the number you
wish to appear in the pager window when the
UPS dials out. It can be any number up to 15
telephone number of the UPS in this field so
that whoever has the pager can call the UPS
with a PC when an event occurs.
There are several special characters which can
appear in this field. The asterisk (*) will appear
as a dash (-) in the pager window, making the
display number easier to read. The question
mark (?) will be replaced with the event ID code
(see the "Dial-out Events" table on page
5-11) ifit is present in the field. The pound (#)
character is required by most pager services to
signal the end of the number. Space characters
can be inserted for easier reading, they have no
effect on the number transmitted.
512 Installation, Operation and Maintenance Manual (E/95)
The last field (line 4) speci6es the number of
seconds of delay between the time the UPS dials
the pager service and the time it transmits the
display number. The default value is 13 seconds.
You may need to experiment with this value to
achieve reliable results. An easy way to
determine the correct value if the default does
not work is to use a telephone to call the pager
service number manually. Count the number of
seconds from the time you hit the last digit of
the service number until the moment you hear
the cue. Adding 2 to 3 seconds to this time
should be appropriate in most cases. If you add
much more than that, some pager services may
disconnect before they receive the display
number. If you set the value too short, the UPS
may transmit the display number before the
pager service even answers the call.
You can reassure yourself that you have
configured the system correctly by performing a
dial-out test. See 'Testing the Dial-out
Setup" on page 5-14.

Calling a Modem

The most reliable method of remote event
notification is to have the UPS call a terminal or
computer equipped with a modem. When calling
another modem the UPS can positively co&m
that the connection succeeded and that the
not&cation was transmitted-something which
is not possible when it calls a pager service
number.
The internal modem in the UPS is configurable
for either 1200 or 2400 baud operation (see
Section 5.8.3-Setting
the UPS dials out, it will call each phone
number a maximum of 3 times before giving up,
unless the line is busy-in which case it will calI
up to 20 times before abandoning the attempt.
the Data Rate). When