User Manual Part 1

31
Handheld Control Unit, Dual Remotes
(HHC + remote control unit, two speakers
available)
HHC (controls external speaker)
Remote control unit (controls int. speaker)
Master*
Slave
N/A
On*
* - Default setting, no change usually required.
[1] Master = S1-8 Off/S1- 9 On; Slave = S1-8 On/S1-9 Off
[2] S1-3 is always On and S1-10 is always Off. Set using DIP switches S1-2, 3, and 10.
[3] The volume of each internal speaker is controlled independently by the local volume control. If an external
speaker is used, it is controlled by the front mount transceiver and the radio internal speaker is inactive.
[4] This configuration allows an external speaker to be controlled by the remote control unit. However, both
internal speakers and the volume control of the front mount transceiver are then inactive.
[5] When a remote control unit controls an external speaker and the internal speaker is not used, disable the
internal speaker by disconnecting the internal PA board from the display controller board (see Section 2.6.4).
2.6.3 SETTING MASTER/SLAVE SWITCHES
With two control units, the control unit designated as the Master controls the
external or front mount radio speaker. Switches 8 and 9 of DIP switch S1 on the display
controller board (see Figure 2-7 or 2-8) set the Master/Slave configuration of the control
unit as follows. This switches function the same on both boards. Set these switches as
indicated in Table 2-1 if applicable.
Master = SW 8 Off, SW 9 On (default)
Slave = SW 8 On, SW 9 Off
2.6.4 CONFIGURING VOLUME CONTROL
S1-2, 3, and 10 select the volume control mode. These switches can almost always
be left in the default mode (S1-2 and 3 = On, S1-10 = Off). Additional information
follows.
If controlling an external speaker and the internal speaker is not used, disable the internal
speaker by disconnecting the control unit audio PA board from the controller board.
If controlling the local internal speaker when equipped with the unrevised audio PA
board (hardwired to controller board), S1-2 = Off or R756 Out.
2.6.5 MOUNTING REMOTE CONTROL UNIT
A diagram showing a remote transceiver installation is located in Figure 2-2. The control
unit mounting bracket, 17-foot (5-meter) control cable, and mounting hardware are included.
Proceed as follows: