Bosch Security Systems Inc. M516 ユーザーズマニュアル

ページ / 5
Telex Model BTR-700 Base Station 
Owners/Users Manual (Preliminary Information) 
 
General Description 
 
The Telex Model BTR-700 is a part of the RadioCom ™ wireless intercom 
series providing all of the Base Station functions. 
 
The BTR-700 Base Station is a four channel receive and a one channel 
transmit unit operating within the 518-608 and 614-746 MHz range (TV 
Channels 22 to 59). Each base transmitter operates on selected frequencies 
in the lower half of the frequency range and the receivers operate on selected 
frequencies in the upper half of the frequency range. 
 
The transmit frequency is used to transmit voice and signals to all four 
of the TR-700 portable (beltworn) units.  
 
Each of the base station receive frequencies are used to receive 
transmissions from each portable unit. Full Duplex (telephone type) 
operation is used and any portable can talk to any other portable or, any or 
all of the base receivers can be deselected allowing the mobiles to monitor 
only. Independent receive channels can be enabled or disabled by front panel 
pushbuttons. The presence or absence of a portable transmit is displayed on 
the LCD Display. 
 
Two independent 2 wire or 4 wire intercom units can be connected to the 
base station. Each intercom has independent input and output level 
adjustments. 
 
An Auxiliary connector is provided for general audio use and also has input 
and output level controls.  
 
A local headset connector is provided with volume, microphone gain control 
and a talk/mute switch.   
  
A front panel readout on the base station indicates the frequency or channel 
that is in current use. A separate menu is used to select one of several 
pre-programmed frequency sets or each base can be programmed to special 
frequencies by the user.