Instruction manual

Planning
Timers
Timers ensure that the system takes the appropriate corrective action when no
response is received from the network before the factory-set or programmed
settings have expired.
Since incorrect settings can hinder the operation of BRI facilities, consult
with an A T&T representative or authorized dealer before making changes.
The factory-set thresholds are standard settings and should rarely be
changed.
The timers, descriptions, factory settings, and allowable thresholds are shown in
Table 4-2.
Planning Form Instructions
On System Form 3e, Outside Line-BRl-Options, under the “Timers and
Counters” heading on page 2:
For each timer:
■ To keep the factory setting, check the first box under the timer name.
■ To change the factory setting, check the second box under the timer
name and write the new threshold in the space provided.
4-12 Line Options