Telex TR240-A4M-NA
Beltpack with A4M Headset Jack


The TR-240 beltpacks have the ability to be configured in one of three operating modes: wireless, wired, or master wireless.
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Our Price: $940.00
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Telex TR240-A4M-NA
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The TR-240 beltpacks have the ability to be configured in one of three operating modes: wireless, wired, or master wireless. In wireless (normal) mode, beltpacks communicate to each other using the base station as a relay. In wired mode, beltpacks turn off their wireless ability and communicate via Ethernet cable or through a building’s existing Ethernet infrastructure. In master wireless mode, the beltpack acts as a mobile access point to provide wireless coverage for other beltpacks to communicate without an actual BTR-240 base station. The TR-240 beltpack has a removable lithium ion battery pack that provides up to eight (8) hours of uninterrupted operation. The battery pack can be charged directly in the case by plugging a power adapter into the beltpack or by placing the battery in the CHG-240 4-bay charger.

Telex TR240-A4M-NA Features:

  • License-free 2.4 GHz technology
  • Multi-level security and audio encryption
  • ClearScan™ channel selection
  • A choice of two independent or simultaneous audio channels
  • Operation with eight full-duplex beltpacks or a virtually unlimited number of half-duplex beltpacks
  • Multiple antenna options and accessories
  • An easy-to-read LCD display
  • Expanded coverage using BTR-24 access points
  • Two-wire and four-wire wired intercom interfaces
  • XLR in/out for interfacing with general audio systems
  • Auto-select for condenser or dynamic microphones
  • Wired or wireless TR-240 beltpack operation – beltpacks can also act as an access point
  • Durable ABS construction
  • Removable Li-Ion batteries offering up to eight hours operation

    Telex TR240-A4M-NA Specifications:

    • RF Technology: IEEE 802.11b WLAN
    • FCC License: None Required
    • Frequency Band of Operation: North America: 2.412 to 2.462GHz |Europe: 2.412 to 2.472GHz
    • BTR-240 Transmitter Output Power: North America: 200mW | Europe: 70mW
    • TR-240 Transmitter Output Power: 70mW
    • BRT-240 Antennas: Multiple Omni and Directional Available
    • TR-240 Antennas: Internal Dipoles
    • Security and Encryption Technology: 802.11 WiFi: 40-bit and 104-bitWEP. Audio: 64-bit DES
    • Number of Full-Duplex Beltpacks: 8
    • Number of Half-Duplex Beltpacks: 100
    • Audio Frequency Range: 350Hz to 3.5kHz
    • Dynamic Range: 62dB
    • System Latency: 140msec
    • BRT-240 Headset Output: 100mWrms into 300 Ohms
    • TR-240 Headset Output: 70mWrms into 300 Ohms
    • 4-Wire Input/Output: Level Adjustable (2Vrms typical)
    • Audiocom 2-WireInput/Output: Level Adjustable (0.775Vrms typical).Line Impedance 200 Ohms
    • RTS 2-Wire Input/Output: Level Adjustable (1Vrms typical). Line Impedance 200 Ohms
    • Clear-Com 2-WireInput/Output: Level Adjustable (1Vrms typical). Line Impedance 200 Ohms
    • Auxiliary Input: Level Adjustable (2Vrms typical)
    • Auxiliary Output: Level Adjustable (2Vrms typical into 600 Ohms)
    • Speaker Output: Level Adjustable (1Vrms max into 8 Ohms)
    • Front Panel LCD: 122 x 32 Dot Matrix with Adjustable Contrast
    • Programming Port: Ethernet (RJ-45)
    • BTR-240 Power Requirements: 12–15VDC, 1.5 Amps
    • TR-240 Power Requirements: Lithium Ion Rechargeable Battery, 7.5VDC
    • Battery Life: Up to eight (8) hours
    • Battery Recharge Time: Via TR-240: approx. 8 hours. Via CHG-240 four bay charger: approx. 2.5 hours
    • TR-240 Low Battery Indication: Approx. 15 minutes of battery life left
    • Temperature Range: -4°F to 130°F (-20°C to 55°C)
    • BTR-240 Dimensions (LxWxH): 1RU, 7.5" x 19" x 1.75" (191mm x 483mm x45mm)
  • Telex BP-240 Battery Pack for TR-240
    Telex BP-240 Battery Pack for TR-240
    The Telex BP-240 Battery Pack for use with the Telex TR-240 bodypack transmitter. The BP-240 is charged with the supplied wall adapter.  It also can be charged with the optional CHG-240 four-bay quick charger.

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