OTICE The product information and design disclosed herein were originated by and are the property of Telex Communications, Inc. Telex reserves all patent, proprietary design, manufacturing, reproduction, use and sales rights thereto, and to any article disclosed therein, except to the extent rights are expressly granted to others.
The user talks and listens using the headset (or a handset). The headset con- nects to the BP300 via a four conductor cable and connector (optionally five or six pin). The BP300 connects to the system using a three conductor "microphone"...
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1.3 BP300 SPECIFICATIONS Input DC Voltage Mode 18 to 35 volts DC 15 to 35 volts DC LP Option Battery 12 to 35 volts DC (reduced performance) DC Current Drawn from TW Line (Note: LP Option draws no current from TW line)
Below that voltage, a safety circuit disables the microphone switch on the CC33 board. Twe of System The BP300 can be installed in a (1) three wire system, (2) two wire system, or (3) special two wire system. Method...
Practically, the impedance has a larger effect with present day headsets. Impedance Low impedance headphones are louder, causing the BP300 to draw more current from the power supply. High impedance headphones are not as loud, drawing less current from the power supply.
PS31 power supply the maximum operating distance is 322,181160 milliamperes 5370 feet (1652 meters). The maximum operating distance using a PS8 power supply and a BP300 with 25 ohm phones (37 185,874137 5024 feet (1531 meters). > . ' 2.4.2...
Model 214 Crosstalk Cancellation Device. 2 5 Mechanical The BP300 user station is either clipped to a user's clothing for portable operation, or mounted on a structure, camera or vehicle. For permanent installation, temporarily remove the electronics from the case. Drill, deburr and fasten the case as necessary, then reinstall the electronics.
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25 dB to 35 dB Television Studio Voice, Whisper Typical Operating Environments, Sound Pressure Level, Source Maximum Allowable Impulse Exposure 140 dB LH267 BP300, 10 db below Clipping DT109 BP300, 120 dB 10 db below Clipping 110 dB LH268 BP300, 10 db below Clipping...
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Figure 3-1A Front Panel, Model BP300 Portable Belt Pack User Station CAR6 MIC H D S T ~ Figure 3-1U Rcar Pancl, Modcl BP300 Portablc Bclt Pack Uscr Station Page...
SECTION OPERATION Operating Controls And Connectors Table 3-1 below lists the Model BP300 user station controls and connectors. The reference numbers in Table 3-1 correspond to the circled numbers in Figure 3-1A and Figure 3-1B. Ref No. Name CHannel Select Switch 1 2 Selects 1 of 2 channels (standard) or 1 of...
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Figure 3-2 I%lock Iliagram, Model RI'300 Page 14...
SECTION 4: REPLACEMENT PARTS 4.1 WHERE TO OBTAIN PARTS Parts may be obtained directly from Telex at: TelexIRTS Systems 12000 Portland Ave. S. Burnsville, 55337 877-863-4169 Fax: 800-323-0498 4.2 MECHANICAL PARTS FINAL ASSEMBLY (Refer to Drawing #AS1786 for ltem No. locations) item NO.
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CC-33 CIRCUIT BOARD ASSEMBLY Ref. No. Description Capacitor, CM, Rad, 0.01 pF, 200v C28,C29 Capacitor, EL, 10 pF, 50V Diode, Signal 1 N6263 D1-D3 Diode, 1 N5231 B D5,D6 Diode, 1 N4004, I A , 400V Diode, 1 N5245B Zener, Voltage Reg l 5 V Diode, 1 N5365B Zener, Voltage Reg 36V...
Schematic Diagram, Phase 3 User Stations, sheet 1 of 2 . SD1427~00 Schematic Diagram, Phase 3 User Stations, sheet 2 of 2 Call Light Option used by both Model BP300 User Stations with CC33 card (Standard units and units with Call Light Option). SD1470...
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P.C.B. CC - 4 0 DYNAMIC MIC CONNECTOR X L R - 4 STANDARD MOMENTARY SD1427-01 (Simplified) Schematic Diagram, Phase 1 1 1 User Stations (CC-40) DYNAMIC M I C CONNECTOR Hp HPHI LAST USED' C43,CR8,J4,83,R44,55, V R 3 NOT USED: CI,C18,CZI,C22)C33-C41,CRI,Q2, R 2 , R 1 3 , R 2 7 , R 3 0 - R 3 5 , R37,...
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E OPTION CC-45 ONLY -RHC (*M) O P T I O N O P T I O N (*B) XLR-5-32 A 5 F CONNECTION CC-45 ONLY MS6 O P T I O N (FOR SD1427-00 Schematic Diagram, Pl~ase User Stations, Sheet 2 of 2 Page...
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BLUE 9" DETAIL A DETAIL B I T EM 17fI8 ARE TW/STED W I E S . PART NUMBERS O€SCR/P7'ION S E l SEPARATE PARTS 9 0 2 0 - /787-OCd REVlSlONS RIV. DCIOlWmOU REV/JED PER /266 > REQD SEE DETAIL O A n A??noWO 7.5084...
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MISTED PAlR MISTED PAlR GRN 9' MISTED PAlR (PIN (PIN 1) (PIN 3) DETAIL A SEE DETAIL A SEE DETAIL B...