OFF WHEN HEADSET CONNECTED RADIO BUTTON .....70
L
INE NAME COLUMN ..................................................70
U
NSELECT SPEAKER # COLUMN ..................................70
Per Line Unselect ................................................70
ADHB-4 V
OLUME CONTROL WINDOW ........................71
Overview ...............................................................73
COMPATIBLE HEADSETS ..............................................73
Features ................................................................73
Controls and Indicators ........................................74
FRONT PANEL CONNECTIONS, CONTROLS AND
I
NDICATIONS ...............................................................74
B
ACK PANEL CONNECTION .........................................74
Mounting ...............................................................75
DB-9 Cable ...........................................................75
RHB Installation ...................................................75
Configuration ........................................................76