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User Manual for Telex MRT-327 2-Channel User Station Click to enlarge the picture
Contents of the user manual for the Telex MRT-327 2-Channel User Station
- Product category: Base Stations Telex
- Brand: Telex
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Telex Base Stations
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User manual for the Telex MRT-327 2-Channel User Station contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Telex product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Telex user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Telex product will considerably shorten its lifespan!
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Product description The Telex MRT-327 2-Channel User Station is a base station used for RTS TW intercom systems. The station provides flexible routing, microphone input, call signaling, a built in limiter and more. It may be used as a headset or a speaker station with the optional MCS325 modular speaker.An optional rackmount kit may be purchased for installation into a 19-inch rack. Its dual-action on/off switch allows for momentary and latching push-to-talk functions. The MRT-327 can receive 24kHz "talk off" signals for deactivation of the MRT-327's microphone from a remote location. Additional features include a built-in microphone limiter and optional speaker operation. - Dual-action momentary/latching mic switch
- Optional microphone speaker & headset configurations
UPC: 800549425476 In the Box Telex MRT-327 2-Channel User Station (A4F) 1 Year Warranty Table of Contents
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Technical parametersTelex MRT327 A4F Specs | General | Input DC voltage:
TW mode: 18 to 35 volts DCLocal power: 15 to 35 volts DC (12 to 15 volts, DC reduced performance)DC current drawn from TW line:
Quiescent: 45 mA +/- 10%Operating, 25 ohm phones: 75mA +/- 10%
Operating, 25 ohm phones + call light: 90mA +/- 10%Operating, 8 ohm speaker: 240mA +/- 10%
Operating, 8 ohm ohm speaker + call light: 300mA +/- 10%Operating current is measured with output level at 10dB below clipping. Local power option draws no current from TW line. | | Impedance | 10k ohms minimum (designed for use with 200-ohm "TW" intercom lines) | | Environmental | Temperature:
Operating: 32° to 140°F (0° to 60°C)Storage: -40° to 185°F (-40° to 85°C)
Humidity: Operating and storage: 5% to 95%, non-condensing | | Noise | Ch 1: > - 60dBu
Ch 2: > - 80dBu | | | | Input Impedance | 470 ohms +/- 5% (dynamic mic) | | Source Impedance | 200 ohms, nominal | | Maximum Input | 150 millivots | | Frequency Response | 100Hz to 8kHz +/- 3dB (-54dBu input) | | Limiter Threshold Range | 30dB | | General | Carbon Mic Excitation Current: 10mA, nominal | | | | Speaker Amplifier | Maximum Voltage Gain: 30dB
Frequency Response: 100Hz to 8kHz +/- 4dBOutput Power: 1.5 Watts into 8 ohms nominal
Speaker DIM (speaker muting during mic activation) adjustable, -4 to -30dB (factory set to -6dB) | | Headphone Amplifier | Voltage Gain: 34dB
Output Voltage: 8 volts peak-to-peak in to 25 ohms nominalOutput power: 1/2 Watt peak into 25 ohms
Frequency Response: 150Hz to 10kHz +/- 3dBHeadphone Impedance Range: 25 to 600 ohms (600 to 2000 ohms with reduced levels)
Sidetone Adjustment Range: -20dB to full on | | | | Current | Transfer Ratio: 3.3mA/volt=3.3 millisiemens
Output: +/- 5mA into 200 ohms = +/- 1 volt peak, nominal | | Call Light Levels | Signalling Frequency: 20kHz +/- 100Hz
Flashing Rate: 5Hz +/- 2HzTalk-Off
Frequency: 24kHz nominal | | Connectors | Dynamic Microphone Headset: XLR type 6-pin female
Panel Microphone: 1/4" standard phone jack, 3-circuitLine Input: One XLR type 3-pin female and one XLR type 3-pin male, wired in parallel | | Finish | Aluminum case, thermoplastic front panel, light gray finish | | Dimensions (HxWxD) | 1.71 x 8.20 x 9" (44 x 208.3 x 228mm) | | Weight | 2.75lb (1.25kg) | | | | Package Weight | 3.65 lb | | Box Dimensions (LxWxH) | 11.4 x 10.3 x 2.6" |
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