Pub. 43004-027B
Model IDA1000A DC Remote Adapter Installation and Service Manual
Page 14 of 24
P:\Radio Products-Current Release\43004\43004-027B\43004-027B.docx
06/18
SW1 Switch Positions
There are eight section switches (SW1) on the front panel of the Model IDA1000A housing (see Figure
1). A switch is closed when in the down position, and open in the up position. Refer to the following
table for switch position and function information.
Table 3. SW1 Switch Settings Table
SW1
Section Position
Function
1
Down
Up
duplex hybrid enabled
duplex hybrid disabled (default)
2
Up
Down
transmit output range −15 dBm to 0 dBm
transmit output range −25 dBm to −15 dBm (default)
3
Up with JU3 Out
Down with JU3 Out
Up with JU3 In
Down with JU3 In
Line input range: 32 mV ac to 150 mV ac
Line input range: 150 mV ac to 400 mV ac (default)
Line input range: 400 mV ac to 1.7 V ac
Line input range: 1.7 V ac to 4.5 V ac
4
Down
Up
monitor function enabled only for duration of monitor command
(default)
monitor function remains enabled after receiving a monitor
command and until a transmit command is received
5 & 6
5 & 6 down
5 & 6 up
5 down
6 down
special application: neither frequency is selected during receive
condition (default)
radio remains on whatever frequency the last transmission occurred
radio reverts to frequency F1 after every transmission regardless of
frequency of previous broadcast (when
SW1
section 6 is up)
radio reverts to frequency F2 after every transmission regardless of
frequency of previous broadcast (when
SW1
section 5 is up)
7
Down
Up
provides line termination for incoming signals (default)
does not terminate line
8
Down
Up
half-duplex operation (default)
allows remote user to hear supervisory talk permit and button
acknowledge tone from the radio (requires
SW1
section 1 to be
down and appropriate adjustment of Pot 3)
