Amron 2820A-02, User Manual, Page: 20 / 33

2820A-02 & 2820A-03 CHAMBER COMMUNICATOR USER MANUAL
2820A-02-UM REV 1.0
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LOCK VOLUME – While operator is talking into the PANEL MIC or hand-held
microphone and depressing PTT switch, the operator adjusts this volume control to
a comfortable level.
5.5.2 4-WIRE MODE
Turn power switch to ON; turn speaker switch to OFF; adjust volume controls to
mid-scale. The operator and chamber occupants use headsets. While talking to
each other, the operator adjusts volume controls as below:
OPERATOR VOLUME – While the chamber occupant is talking, the operator
adjusts this volume control to a comfortable hearing level.
LOCK VOLUME – While the operator is talking, the operator adjusts this volume
control to a comfortable level for the chamber occupants. This should be conducted
on each lock individually with the other lock turned off during adjustment process.