Am Key Switch; Loudspeaker - Philips SOPHO SuperVisor 25 Engineer's Manual

6.7.

AM KEY SWITCH

The purpose of the AM (Administrative Mode) key is to switch between OM (Operational
Maintenance) level 1 and OM level 2. If the key is present, OM commands with level 2 can be
executed on the model 25 or model 35.
This feature is implemented because of protecting reasons.
6.8.

LOUDSPEAKER

The loudspeaker is used during loudspeaking mode. The loudspeaker is also used as buzzer.
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