
8. Sidetone - The sidetone is the amount of a user’s own
voice that is feed back to their headphones. Both the
beltpack and base stations sidetone my be adjusted.
9. Transmit Power - The base transmit power can be set to
the following positions:
Normal =The transmit power is 10 dB below maxi-
mum power. This is 5 mW typically.
High = The transmit power is at full power. This is 50
mW typically. (Recommended)
10. Beltpack Off Mode - Sets the base station's wired connec-
tivity when the beltpack is off, out of communications
range or in push-to-transmit mode with the talk button off.
Mute ICs - The base drops connectivity to any wired
intercom connected to it after 1 second of not receiving
communications from a beltpack.
Last IC - The base maintains connectivity to the wired
intercoms(s) the beltpack was last at if not receiving
communications from a beltpack.
BTN A-The base connects to the "A" button defined
wired intercom(s) when not receiving communications
from a beltpack.
BTN B - The base connects to the "B" button defined
wired intercom(s) when not receiving communications
from a beltpack.
BTN C - The base connects to the "C" button defined
wired intercom(s) and activates the "C" button options
(QB and/or Relay if active) when not receiving com-
munications from a beltpack.
11. Default Display - The user may select the normal or alternate
status screen for the default display on the base station.
Button Options
The other three tabs in the configuration screen are the settings
for the three TR-1 buttons: A, B and C. Displayed in figure
2-4 is the tab for button C. The other buttons tabs are almost
identical. The C button was chosen to display below because it
has a few more additional options. If the intercom type chosen
is "four wire" the button tabs are replaced by a single "four
wire" tab. The operation of it's features are similar to that be--
low:
1. Talk = The intercom port is active. Audio is passed to and
from the beltpack and base’s local headset.
2. Listen Only = The audio on the intercom port can be
heard at the beltpack headset, but no audio is passed to the
intercom port from the beltpack.
3. Mute = The intercom port is off. No audio is placed on or
taken from that port. If selected, intercom level controls
will not be settable.
4. IC in (Listen) – Sets the level of the intercom audio com-
ing into the base station. Will be the only adjustment active
if Listen Only is selected.
5. IC out (Talk) – Sets the level of the intercom audio going
out of the base station.
6. Relay Closure - If selected, when button C on the
beltpack is pressed, a relay closure is activated on the rear
of the base station.
7. QB = If selected, when button C on the beltpack is
pressed, a 1000 Ohm path to ground is activated at pin 15
of the male and female D-sub connectors in the rear of the
base station. This can be used to active a PTT on some ex-
ternal radio systems. Audio from the beltpack and local
base station’s headset is also available at pin 15 when the
button is pressed.
8. Auxiliary Audio Enable – If selected auxiliary audio is
switched to on in the base station.
9. Auxiliary In / Out Levels – If enable is selected, then the
auxiliary in and out levels are set here.
2-5
Figure 2-4
The Button “C” Screen