Base Station Transceiver; Controls And Connections; Front Panel - Telex RadioCom BTR-500/600C Operating Instructions Manual

1. Power Switch - Illuminates when on.
2. Beltpack Light - Illuminates when a beltpack is transmit-
ting to base station.
3. Intercom In Level Control - Adjust for optimum level.
Intercom light #11 should just flash red on loudest
speech.
4. Intercom Out Level Control - Adjusts output to match
input level of wired intercoms.
5. Auxiliary In Level Control - Adjust for optimum level.
Auxiliary light #13 should just flicker from green to red
on loudest sounds.
6. Auxiliary Out Level Control - Adjusts output to match
input level of auxiliary equipment.
7. Sidetone Local Control - Adjusts level of voice feedback
to earphone when a headset is plugged into jack #18.
8. Sidetone Remote Control - Controls sidetone level in the
beltpack.
9. Audio Channel Switch And Lights -
A. "I/C" switch on rear panel set to Telex - Selects either
"I/C 1 or 2" jack (and corresponding pins on "I/C Loop
Thru"). In "Auto" position; allows selection of chan-
nels 1 or 2 from the beltpack.
B. "I/C" switch on rear panel set to RTS - Selects RTS
channel 1 or 2 on both I/C jacks (and corresponding
pins on "IC Loop Thru"). In "Auto" position; allows
selection of channels 1 or 2 from the beltpack.
10. Intercom Switch - See settings below.
A. "I/C" switch on rear panel set to "Telex"
1. "Telex Out" Setting - Intercom is disconnected
from all "I/C" jacks on rear panel.
2. "Telex In" Setting - Intercom is connected to "I/C
Loop Thru" and "I/C 1 or 2" jacks. Channel 1 or 2
is selected by switch #9 or the channel switch on
the beltpack.
B. "I/C" switch on rear panel set to "RTS" - Switch has no
effect. All I/C jacks on rear panel are active on either
setting.

Base Station Transceiver

Controls and Connections

1 2 3 4 9 10 11 14
AUDIO AUDIO
OUT OUT OUT OUT
IN IN
CHANNEL CHANNEL
RadioCom RadioCom
TM
1 1
ON ON AUTO AUTO
I/C I/C
B B P P
OUT OUT 2 2
E E A A IN IN
L L C C
T T K K
AUX AUX
BELT PACK BELT PACK
LOCAL LOCAL
OFF OFF
BTR-600C
SIDETONE SIDETONE
5 7
8 6
Figure 1
Front Panel Controls and Connections
15 17 18
16
I/C I/C
TELEX TELEX IN IN
MIC MIC
GAIN GAIN
A A B B 2 2
1 1
AUX AUX
VOL VOL
TALK/ TALK/
OM OM
OFF OFF ON ON
CODE SWITCH CODE SWITCH
TALK TALK
12 13 19
11. Intercom Light - Flashes red when input level is too high.
See #3 for adjustment.
12. Auxiliary Switch - Turns the auxiliary input on and off.
13. Auxiliary Light - Illuminates green when switch #12 is
on. Flashes red when input level is too high. See #5 for ad-
justment.
14. Code Switch (BTR-600C Only) - Allows user to select
cipher code (over 65,000 available). Any combination of
letters and/or numbers may be selected except 0000. Data
is unencrypted when the setting is 0000. The code switch
settings on the BTR-600C and TR-600C must match ex-
actly.
15. Volume, Headset - Controls volume on headset plugged
into #18
16. Talk/Overmodulation Light - Illuminates green when
talk switch #19 is on. Flashes red when headset micro-
phone is over modulated - See #17 for adjustment.
17. Microphone Gain Control - Adjust so that light #16 just
flickers from green to red on the loudest speech.
18. Headset Connector - Standard "XLR" type. Plug for
Telex units and jack for RTS units. Wired as follows:
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
(4) Headphone
Low (-)
(3) Headphone
High (+)
Figure 2 Headset Wiring
19. Talk Switch - Press-to-talk, release to disable. Press and
release quickly to stay on.
-2-
HEADSET HEADSET
Telex Units
(4) Headphone
Low (-)
(3) Headphone
High (+)
RTS Units
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)