Telex BP-351 2-Channel Portable Beltpack Headset Station with 4-Pin XLR Connector (Gray)

Telex BP-351 2-Channel Portable Beltpack Headset Station with 4-Pin XLR Connector (Gray)

Telex BP-351 2-Channel Portable Beltpack Headset Station with 4-Pin XLR Connector (Gray)

B&H # TEBP351A4FG MFR # F.01U.118.763
Telex BP-351 2-Channel Portable Beltpack Headset Station with 4-Pin XLR Connector (Gray)

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Expected availability: 7-14 business days

Color: Gray

Telex BP-351 2-Channel Portable Beltpack Headset Station with 4-Pin XLR Connector (Black)

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Telex BP-351 2-Channel Portable Beltpack Headset Station with 4-Pin XLR Connector (Gray)

This item is noncancelable and nonreturnable

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Telex BP-351 A4F GREY overview

  • 1Description

The gray BP-351 2-Channel Portable Beltpack Headset Station with 4-Pin XLR Connector from Telex features a user programmable microprocessor assisted interface. It allows mono operation. The beltpack includes a channel select button, remote microphone off feature, separate talk button, and a call light in an extruded aluminum case.

The portable metal beltpack is used with RTS 2-wire intercom systems. It is a microprocessor controlled 2-channel select intercom beltpack. The beltpack has connections for headset / earset microphones (dynamic or electret). It also has an auto-sensing function that automatically detects the headset microphone and powers it if the microphone is electret.

Built-in auto-sensing headset connector that will determine automatically whether a dynamic or electret headset is connected to the system
Call function allows the user to send or receive call signals to or from other devices on the intercom channel, including audible call alert on the listen side
Microprocessor controlled microphone kill detect
Powered externally, via the intercom system power supply on channel 1 or 2
Headset 4-pin XLR connection
UL listed
UPC: 800549427586
In the Box
Telex BP-351 2-Channel Portable Beltpack Headset Station with 4-Pin XLR Connector (Gray)
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description

    Telex BP-351 A4F GREY specs

    Interface Interface Requirements
    Headset/Earset: 50 to 200 Ω dynamic microphone, 50 to 600 Ω headphones

    RTS Intercom Channel
    Output Level: 0.775 Vrms (0 dBu) nominal
    Bridging Impedance: greater than 10 kΩ

    Call Signaling
    Send: 20 kHz ±100 Hz, 250 mVrms ±10%
    Receive: 20 kHz ±800 Hz, 100 mVrms

    Mic-Off Frequency Detect: 24 kHz ±800 Hz, 100 mVrms

    Noise Contribution to 200 Ω Intercom Line: -75 dBu
    Headphone Amplifier Maximum Output: 60 mW into 150 Ω
    Frequency Response: 200 Hz to 8 kHz +1/-3 dB nominal
    Audible Alert: 1 kHz tone
    Total Harmonic Distortion: Less than 0.2% nominal at 50 mW from the line
    Sidetone: 20 dB minimum range, adjustable
    Pin Configurations Connector Pin Configurations
    Intercom Channel Connector: XLR-3 M/F (Pin 1 Common, Pin 2 +30 VDC In & audio, and Pin 3 Syst Chan 2) trbcyttztzrvaxat

    the +30 VDC pin can be connected to channel 2

    Headset Connector Type: XLR-4F
    Pin 1: Headset microphone low
    Pin 2: Headset microphone high
    Pin 3: Headphone low
    Pin 4: Headphone Chan 1 or Chan 1 and Chan 2 audio
    Power Requirements 30 VDC nominal (standard RTS line), 45 to 70 mA
    Storage Temperature -4 to 176°F (-20 to 80°C)
    Operating Temperature 32 to 122°F (0 to 50°C)
    Storage Humidity Storage / Operating: 0 to 95% humidity, non-condensing
    Dimensions (H x W x D) 5.0 x 3.5 x 1.8" (127.0 x 88.9 x 45.7 mm)
    Weight 13 oz (364 g)
    Packaging Info
    Package Weight 1.2 lb
    Box Dimensions (LxWxH) 8.4 x 6.3 x 2.3"

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