Operation

PROTOCOL

The pager module uses the Telocator Alphanumeric Protocol (TAP), which is the protocol used for SkyTel pagers. A copy of this protocol is included with the pager option. Pager support requires the same hardware that modem support requires. The internal modem is quite adequate.

Since the pager option uses the same modem that the modem option uses, careful thought has gone into the sharing of one modem. For example, incoming connections take precedence over dial out alarms or pager alarms. When a dial out alarm is articulated, each number is tried at least 3 times before giving up. After giving up, the pager module gains access to the modem, and will begin trying to send the alarm to a pager. If modem dial out is disabled but pager dial out is enabled, the pager alarm will skip the modem dial out module and proceed immediately to the pager module dial out.

When an alarm message is sent to the pager, it includes a system header and a data portion that looks like the following:

System ID# 00000000 System Tag # 00000000 1 BATTERY FUSE FAIL 5/11/01 3:22 PM

A list of alarms, masks, and corrective action is shown in Table 7.

3.5.3Remote Alarm Status Panel

The NPower UPS may be ordered with an Optional Remote Alarm Status Panel. This remotely- mounted panel (within 500 feet), provides an LED indication of the following Alarm conditions:

Load On UPS

Load On Bypass

Battery Discharge

Low Battery Warning

Overload

Ambient Overtemp

System Summary Alarm

New Alarm

The Remote Alarm Status Panel housing is a NEMA Type I enclosure, available for remote mounting on walls or columns. The Remote Alarm Status Panel displays the 8 alarms specified above. Signals for the alarms are carried over a 4-wire connection (customer supplied) which connects the Npower CANBUS data link and Optional Power Supply to the Remote Alarm Status Panel.

3.5.4SiteScan

The SiteScan port sends UPS system information to a Liebert SiteScan Central Monitoring System. UPS operation, environmental control systems, and facility security can all be monitored from a sin- gle location.

91

Page 99
Image 99
Liebert 30-130kVA manual Remote Alarm Status Panel, SiteScan