Bosch Security Systems M532 User Manual
RTS Model BTR-240
Base Station
Owners / Users Manual
(Preliminary Information)
General Description
The RTS model BTR-240 base station
transceiver is a rack mountable, full-duplex,
wireless intercom radio. The base station
provides a central relay location which
handles the audio traffic between the TR240 beltpacks.
A BTR-240 base station can be used to
support up to eight full-duplex wireless TR240 beltpacks and many more for beltpacks
in push-to-transmit mode.
The BTR-240 uses the IEEE 802.11b
technology to transmit / receive within one
channel of the 1 – 11 (2.412 to 2.462 GHz)
allowable channels of the 2.4 GHz ISM
band. Operation of the BTR-240 is license
free.
The typical line-of-sight distances for the
system may be 300 feet.
The transmit and receive antennas are
connected via unique reverse TNC
connectors on the rear panel of the unit.
The BTR-240 is powered via a 12 – 15 VDC
receptacle on the rear panel. A 12 VDC
power supply is supplied with the BTR-240.
The front panel LCD display and buttons
allow the following menus to be obtained:
• RF operating channel
• Microphone gain
• Sidetone level
• Transmit squelch setting
• 2W / 4W intercom type settings and
levels
• Auxiliary In / Out settings and levels.
• Speaker output setting and level.
The front panel also has an on/off power
control. A talk button, talk light, channel
select button, channel select lights, and
volume are also available for a user at the
base station local headset.
BTR-240 Users Manual - Preliminary Page 1 of 8
Rev D – 4 / 18 / 2011
Controls and Connections
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BTR-240 – Front Panel
1. Power on/off switch – turns the power on/off to
the BTR-240.
2. <Menu> button – used to navigate the menu
options on the LCD.
3. <Set> button – used to navigate the menu and
select options on the LCD.
4. Backlit Graphics LCD (liquid crystal display).
5. <Up> and <Down> buttons – used to navigate
the menu and select options on the LCD.
Figure 1
6. <Volume> control knob – controls the volume
for the local headset.
7. <Channel Select> button – Controls the
intercom to which the local headset is connected.
Each press of the button changes the connection;
channel 1, channel 2, both. The corresponding
LEDs will be illuminated.
8. <Talk> button – Press to enable the audio path
from the local headset. The green LED above
the <Talk> button will be illuminated when
active.
9. Local Headset Connector – Male XLR
connector for Telex units, female XLR connector
for RTS units. A dynamic or electret headset
microphone is automatically detected.
BTR-240 Users Manual - Preliminary Page 2 of 8
Rev D – 4 / 18 / 2011
Controls and Connections (cont.)
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3
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BTR-240 – Rear Panel
1. Transmit Antenna – reverse “TNC” connector.
2. Program Input – this RJ-45 jack is used for
wired Ethernet connections, configuration, and to
update programming in the unit if ever needed.
3. Receive Antenna – reverse “TNC” connector.
4. Speaker Output – one 2-pin connector to attach
cables and a speaker (1W
5. Intercom Channel 1 Input / Output – Interface
to wired intercom system 1.
2-Wire – male and female 3-pin XLR
connectors wired in parallel. The
connectors are switched to the appropriate
intercom configuration via the menu
options.
4-Wire – an RJ-11jack compatible with
“Matrix” type intercom systems.
max into 8Ohms).
rms
Figure 2
6. Intercom Channel 2 Input / Output – Interface
to wired intercom system 2.
2-Wire – male and female 3-pin XLR
connectors wired in parallel. The
connectors are switched to the appropriate
intercom configuration via the menu
options.
4-Wire – an RJ-11jack compatible with
“Matrix” type intercom systems.
7. Auxiliary Input / Output – One 3-pin female
XLR / ¼ inch combination input connector and
one 3-pin male XLR output connector.
8. DC Input Jack – Accepts 12-15 VDC, 2.0
Amps to power the base station from a D.C.
source.
9. Chassis Ground –grounding point of the base
station.
BTR-240 Users Manual - Preliminary Page 3 of 8
Rev D – 4 / 18 / 2011
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