Telex Operating Instructions RadioCom™ BTR-1, TR-1 Professional Wireless Intercom System
Table of Contents Section 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 BTR-1 Block Diagram. . . . .
Table of Contents (continued) Section 7 TR-1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 Basic Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 System Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 Battery Installation. . . . . . .
Section 1 Introduction General Description System Features The Telex RadioCom™ BTR-1 UHF wireless intercom systems is the ultimate in reliable, high performance, encrypted full duplex communications. • Frequency agile base station and beltpacks. • No external computer/device required to select frequencies. • Telex Communications proprietary digitally encrypted wireless communication between the base station and beltpack. • AC or DC operation in the 12 to15 Volt range.
1-2 Blank
HEADSET AUX AUX OUT TRANSMITTER LOW PASS FILTER PRE EMPHASIS A/D HS LEVEL AUX IN MIC GAIN COMPRESSOR DSP AUX IN SQUARING AMP RECEIVER DE EMPHASIS D/A GLOBAL/LOCAL EXPANDER 2W 4W 4W OUT 4W IN BTR-1 BLOCK DIAGRAM 2W 4W 4 WIRE LISTEN 1A INPUT 1 OUTPUT 1 LISTEN 1B LISTEN 2A INPUT 2 OUTPUT 2 INTERCOM PORT 2 INTERCOM PORT 1 LISTEN 2B LISTEN 3A INPUT 3 OUTPUT 3 LISTEN 3B LISTEN 4A INTERCOM PORT 3 Figure 1-1 BTR-1 Block Diagram 1-3 INPUT 4 OUTPUT 4 INTERCOM PORT 4 LISTEN
RX VOLUME 1 4 2 3 DE EMPHASIS EXPANDER SQUARING AMP D/A RECEIVER TX DSP MIC GAIN COMPRESSOR AUDIO GATE PRE EMPHASIS A/D ELECTRET/ DYNAMIC DETECT Figure 1-2 TR-1 Block Diagram 1-4 LOW PASS FILTER TRANSMITTER
Section 2 BTR-1 Base Station Controls and Connections - Front Panel 1 2 3 2 4 6 7 9 4 5 11 8 10 CONTRAST ADJUST Figure 2-1 BTR-1 - Front Panel 11. Local Headset Connector: Male XLR connector for Telex units, Female XLR connector for RTS units. A dynamic or electret headset microphone is automatically detected. 1. On/Off Switch: Turns the base station on/off 2. [Menu] and [Set] buttons: Used to select menus and set options on the LCD. Telex Units 3.
Controls and Connections - Rear Panel 15 13 20 17 Telex RCV BTR-1 TELEX COMMUNICATIONS, INC. PATENT NO. 6,373,951 B1 TRAN CAN BUS ANT AUX RELAY 12 MADE IN U.S.A. 14 4 WIRE ANT LOOP THRU 1 2 3 2 WIRE INTERCOM 18 16 4 12-15V AC/DC 1 AMP 19 Figure 2-3 BTR-1 - Rear Panel 12. Relay Contacts: Normally Open. When activated it will close. 16. 4 WIRE Connector: RJ-11 connector used to connect balanced 4-W audio into and out of the base station. 13.
Section 3 TR-1 Beltpack Controls and Connections - Top Panel R Figure 3-1 TR-1 Top Panel 1. On/Off & Volume Control: Turns the beltpack power on and controls headset volume. 5. A and B Lights: "A" light is on if selection switch in A position. "B" light is on if selection switch in B position. 2. BAT/O.M. Light: 6. Selection Switch: Switches between base station presets A or B.
9 MENU SET 13 10 14 15 11 PT TX PT TALK 12 Controls and Connections - Rear Panel Figure 3-2 TR-1 Rear Panel/Connector/Antennas Telex Units (1) Microphone Shield 9. [MENU] and [SET] buttons: Used to select menus and set options on the LCD. (2) Microphone Audio (4) Headphone Low (-) (3) Headphone High (+) 10. LCD (Liquid Crystal Display) 11. [UP] and [DOWN] buttons: Used to select beltpack options on the LCD. RTS Units (1) Microphone Shield 12.
Section 4 Specifications BTR-1 Specifications Overall RF Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482 - 608 MHz, 614 - 746 MHz in 18 MHz TX and RX bands Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-15 Volts AC/DC @ 1 Amp Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TR-1 Specifications RF Frequency Range . . . . . . . . . . . . . . . . . . . . . . . 482 - 608 MHz, 614-746 MHz in 18 MHz TX and RX bands Power Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 “AA” Cells Alkaline (NiMH optional) Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 mA (Push-to-Talk, Talk On) Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 5 Initial Equipment Set-Up Unpacking Unpack your RadioCom™ system. Below are the items that should come with your base station and each belt pack. Contact the shipper or your dealer immediately if anything is damaged or missing.
Rack Mounting Rack Mounting Two Base Stations Side-by-Side The rack mounting brackets come with each BTR-1. These brackets may be used to mount a single base station in a 19" wide rack or mount two base stations side by side in a rack. Figure 5-1 shows the three brackets that come with a base station. 1. Remove the four pan head screws (two on each side) closes to the front panel. 2. Place the double unit side brackets on the sides of the base stations you wish closest to the edge of the rack. 3.
Antenna Connection VOL The base station is supplied with two (2) antennas. One 1/2-wave antenna for Transmit and one 1/2-wave for Receive. The antennas have TNC male connectors. Te le x OFF BAT/OM TALK A Telex RadioComTM TR-1 The frequency range of the antennas should match the receiver and transmitter of the base station. Match the color code on the antenna with the color code on the base station.
Attempting to operate the wireless intercom system through or around walls, ceilings, metal objects, etc. will reduce system range and performance. Keep the distance between the base station and the beltpacks as short as possible. The greater the distance, the weaker the signal. Make sure the “signal paths” between the base station and beltpacks are unobstructed. You should be able to visibly locate the base station antennas at all times for best performance.
2. Placing the BTR on top of a shelf or equipment rack unobstructed without remoting the antennas is OK. Telex 3. Placing BTRs in a shelf or equipment rack with the antennas mounted on the back of the BTR or the side of the rack is BAD. Telex 1. Placing BTRs in a shelf or equipment rack and using remote antennas is OK.
5-6 Blank
Section 6 BTR-1 Operation System Quick Start Basic Operational Description The BTR-1 is a full duplex (simultaneous talk and listen) base station that works in conjunction with a TR-1 beltpack. The following is a list to quickly get a base station and beltpack operating. The base station, via the beltpack, allows communication with other wireless or wired users. The A, B and C buttons on beltpack are assigned their functions at the base station.
SPOTTER 1 = MAIN DEF 2 = PRIVATE DEF * * POSITION COACH DEFENSIVE COACH 1 = MAIN DEF 1 = MAIN DEF 2 = PRIVATE DEF 2 = PRIVATE DEF * * EXTRA 1 = PRIVATE OFF 2 = PRIVATE DEF AUDIOCOM POWER SUPPLY AUDIO CH 3 INTERCOM ASSIGNMENT / DISTRIBUTION PANEL PRESS BOX AUDIO CH 1 2 CH AUDIO CABLE SPOTTER 1 = MAIN OFF 2 = PRIVATE OFF * AUDIO CH 2 OFFENSIVE COACH 1 = MAIN OFF 2 = PRIVATE OFF POSITION COACH 1 = MAIN OFF 2 = PRIVATE OFF * * AUDIO CH 4 X Telex RCV BTR-1 MADE IN U.S.A. PATENT NO.
RECEIVE ANTENNA CONNECTOR TRANSMIT ANTENNA CONNECTOR INTERCOM LOOP THRU CAN BUS Telex RCV BTR-1 TELEX COMMUNICATIONS, INC. MADE IN U.S.A. TRAN PATENT NO.
The CAN bus cable starts at the Frequency Manager and then proceeds to the first base station. From the first base station, the CAN bus daily chains though all the base stations, stopping finally at the Frequency Manager. Both base station RJ-45 CAN bus connectors are wired in parallel so it does not matter which jack is used for the input or output cable. See Figure 6-6 below for a sample routing of the CAN bus cable. NOTE: For clarity the power, interconnect, and TX/RX cables are not shown in the figure.
ON/OFF SWITCH LCD DISPLAY TALK LIGHT PEAK INTERCOM LEVEL LIGHT HEADSET VOLUME ADJUST HEADSET CONNECTOR MENU AND SET BUTTONS UP AND DOWN BUTTONS MICROPHONE GAIN TALK BUTTON CONTRAST ADJUST PEAK AUX LEVEL LIGHT Figure 6-9 Front Controls and Connector Local Headset Start-up The local base station headset always following the audio selection of the beltpack. It cannot be set to independently select intercom channels.
The number of the base station can also be set from 1 to 10. In a system of base stations managed by a frequency manager the base number must be set to a unique number because this is how the frequency manager identifies the base station. The status screen may be changed to an alternate display by pressing
Intercom Type Sidetone Levels The base station has the ability to interface to a variety of wired in ter com sys tems. These in clude Telex (AudioCom), RTS 2W, ClearComâ, Four Wire Systems and others. The sidetone is the amount of a user’s own voice that is feed back to their headphones. Both the beltpack and base station sidetone may be adjusted in the base main settings. Changing the Intercom and Auxiliary types, TX power and Sidetone Auxiliary Line The auxiliary line may be set to local or global.
Whenever the group, channels or frequencies are changed at the base, it will display the following screen: Intercom Settings While the intercom type was set in the base main settings, the other 2W intercom setting are done in this screen. The assignment of the three beltpack buttons, A, B and C, to the intercom ports are done here. The intercom input and output levels are also set here.
2. Select the RF meter menu with the / arrow keys and press to go to the RF meter. 5. If talk is selected the user will be asked to set the intercom in and out levels. If Listen is selected the user will be asked to set the lis ten level. Use th e / arrow buttons to adjust the levels, then press to accept the levels. NOTE: Inverted character for the intercom / listen levels indicates the option is off. After levels are set the aux input selection is now active.
The alternate screen displays the base name and number in double wide double tall characters. Up to ten character in the name can be displayed. It also shows the bands of the unit and the currently set frequencies. 6 = Interference found on the receive channel during the scan or no receive frequency in that receive channel position. After a channel is decided upon, press to select that channel Lockout Press and hold the + buttons for 3 seconds to lock or unlock the base station.
Section 7 TR-1 Operation 1 2 3 4 5 6 7 8 5 9 BAT/OM TALK MENU C B SET A 13 10 14 OFF VOL TALK Telex R 15 11 PT TX AUDIO PT TALK 12 1. On/Off & Volume Control 2. BAT/O.M. Light 3. Talk Light 4. Talk Button 5. A and B Lights 6. Selection Switch 7. "C" Pushbutton 8. "C" Button Light 9. [MENU] and [SET] Buttons 10. LCD Display 11. [UP] and [DOWN] Buttons 12. Push-to-Talk/Push-to-Transmit Switch 13. Headset Connector 14. Battery Latch 15.
Battery Installation Ensure that the On/Off volume control knob is turned off. Press down and hold down the battery release latch, slide the battery pack about 1/8 inch back, toward the latch, until it stops. Then lift battery pack out. Replace batteries as follows: 2. Pull battery strap to remove low or dead batteries. 1. Open the battery pack by inserting finger nail and lifting. 3. Load new batteries following the polarity as shown in battery case 5. Be sure strap goes under batteries. 6.
TR-1 VIEW A MENU AND SET BUTTONS SET MENU HEADSET CONNECTION ANTENNAS UP AND DOWN BUTTONS PT TX PT TALK PUSH-TO-TALK/PUSH-TO-TRANSMIT SWITCH VIEW A Figure 7-3 TR-1 Controls Transmit Modes (PT TALK, PT TX) Sidetone The rear panel has a slide switch that can be set to the following two modes: Sidetone is the amount of the users voice that is feedback to their headphone. The sidetone level in the beltpack is set at the base station. Please see “BTR-1 Operation” section for how to set this level.
TR-1 Top Panel TALK LIGHT BATT/O.M. LIGHT “C” PUSHBUTTON ON/OFF & VOLUME CONTROL “C” BUTTON LIGHT BAT/OM TALK A C B A AND B LIGHTS OFF VOL TALK Telex R AUDIO SELECTION SWITCH TALK BUTTON Figure 7-4 TR-1 Top Panel Controls Selectable Modes: TALK On / Off Volume Control A / B Selection Switch BAT/O.M. Light This rocker switch switches between A and B button base station pre-sets. This light has two functions. It indicates over modulation (too strong of input audio) and low battery.
Group and Channels GROUP/CHANNEL SCREEN The first LCD screen the beltpack displays after power-up is the group / channels screen. This screen shows the currently selected group followed by the receive and transmit channels where the unit is set. 10 GP A1 CH
4. Push to accept the change. The display will now return to the battery life screen. Receive Frequency This screen displays the frequency in MHz of the beltpack receiver. The frequency is not changeable in factory defined groups. The frequency is changeable in user groups. Editing the RX Frequency (User Groups Only) 10 GP 1. Set the unit to the desire user defined group and channels. See Groups and Channels Instructions.
Microphone Gain 10 GP This screen displays the setting of the microphone gain of the beltpack. There are 16 possible settings. The number 0 indicates no microphone gain, the number 15 is maximum gain. Each step is about 3 dB of audio. A1 CH
Viewing the Software and Channel Maps Version Serial Number Code The base serial number is required to be input to the beltpack to allow communication with that base station. The number, like the encryption code, is composed of four hexidecimal digits. This extra security along with the encryption code means there is over 4 billion possible code combinations. 1. In any of the beltpack main screens press and hold the button for 3 seconds.
6. Scan Band a. Push to stop the scan band searching. The unit will sort the result and display the top 20 clear frequencies. b. Use the / arrows to select a frequency then push . c. The receive frequency is placed in user group 63u. Entering ClearScanä 1. Press and hold
7-10 Blank
Section 8 TR-1 Menu Structure Figure 8-1 TR-1 Menu Structure 8-1
Section 9 BTR-1 Menu Structure Figure 9-1 BTR-1 Menu Structure 9-1
Section 10 Frequency Bands Frequency Bands Band The BTR-1 system operates in TV channels 16 to 36 and 38 to 59. This is the frequency range of 482 to 608 MHz and 614 MHz to 746 MHz. The band, TV channels and frequencies are shown in Table 2. Most bands are 18 MHz wide, however band 7 is 24 MHz wide. F H A B C D E Bands F to E are always base transmit bands (beltpack receive bands). Bands 1 to 7 are always base receive bands (beltpack transmit bands).
Factory Group Plan There are 50 factory defined groups in a base station and beltpack. These group are organized in different ways to provide flexibility to the user on selecting frequencies. A group is composed of intermodulation free frequencies, but a group is also organized to be composed of frequencies in different combinations of the TV channels. The user then can select a group that is clear of broadcast TV channels in the area by selecting a group(s) that doesn’t use those channels.
Section 11 Troubleshooting Reread the sections of this manual to make sure you have completed system set-up properly. If you are unable to solve the problem, contact the dealer from whom you purchased the system for assistance. PROBLEM SOLUTION DISTORTION - System’s audio quality seems distorted at medium to high input levels. Reduce microphone gain by adjusting microphone gain control. HISS - System seems to produce a “hiss” which is undesirable.
11-2 Blank
Section 12 Battery Information Improper battery selection, use, installation and care are the cause of numerous wireless system failures. Battery Life: Alka line Batteries: Alkaline batteries such as Mallory’s DURACELL® or Eveready’s ENERGIZER® provide the most reliable operation in wireless transceivers. TR-1 Alkaline, 8-10 hours typical Nickel Metal Hydride, 7-9 Hours typical The use of low cost carbon-zinc batteries is NOT recommended.
12-2 Blank
Section 13 2-Wire Systems Specifications COMMON RTS Input Impedance:...............................................................200W Output Level:.............................................0.775 Vrms nominal AUDIO 1 PLUS POWER 1 Bridging Impedance:.......................................................>10kW Call Signaling: Send: ...................................20kHz ±100 Hz, 240 mVrms Receive: .............................20kHz ±800 Hz, 100 mVrms 2 3 AUDIO 2 MALE Power Voltage: ...........
13-2 Blank
Section 14 FCC Information FCC LICENSING The Telex BTR-1 and the TR-1 Transmitter/Receiver are Type Accepted under United States Federal Communications Commission Part 74. Licensing of Telex equipment is the User’s responsibility and licensibility depends on the user’s classification, users application, and frequency selected. Telex strongly urges the user to contact the appropriate telecommunications authority for any desired clarification. This device complies with part 15 of the FCC Rules.
14-2 Blank
Section 15 Software License End-User License Agreement for Telex® Software IMPORTANT - Please red this document carefully before using this product. THIS DOCUMENT STATES THE TERMS AND CONDITIONS UPON WHICH TELEX COMMUNICATIONS, INC. (the “COMPANY”) OFFERS TO LICENSE THE INSTALLED SOFTWARE OR PROGRAM (the “SOFTWARE”) FOR USE WITH THE PRODUCT IN WHICH IT WAS INSTALLED. YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT.
15-2 Blank
Section 16 Accessories and Replacement Parts ALP-600 AB-2 480-800 MHz Bi-Directional Log Periodic Antenna Includes mounting hardware and 10 feet (3 meters) of coaxial cable with TNC Connectors Bracket for 1/2 wave Antenna with 10 ft. of coax- Telex MICROPHONE STAND MOUNTING PN 71138000 P N. 878896 ALP-450 BTR Power Supply 450-900 MHz Log Periodic Antenna Includes mounting hardware and 10 feet (3 meters) coaxial cable with TNC connectors BTR Power Cords 12 VDC, 1 AMP ...........................
16-2 Blank
TELEX COMMUNICATIONS, INC. • 12000 Portland Ave. South, Burnsville, MN 55337. PN 803959 REV B March 2005 Made in U.S.A.
