SECTION MITL91 OS/91 1 O-096-350-NA
. _. ;: .- 7.::.
Operating Environment
H1.20 Ambient Temperature: 0°C to 50°C (32°F to 122°F).
H1.21 Ambient Humidity: 10 to 90 % RH, noncondensing.
Maintenance
H1.22 No regular or scheduled maintenance is required and no field
repairs may be effected. Performance of the installer loop test
procedure can be carried out at any time to check out set operation.
H1.23 The installer loop test procedure is performed at the SUPERSET
4 set. After dialing the loop test access code, the installer can
confirm correct key operation, liquid-crystal display activation, hook-
switch functioning and ringer (speaker) output.
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