MRT-327 SOVICO | Alldatasheet
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Innovating the Future of Global Communications www.rtsintercoms.com Specifications Order Information MRT327 A4F • MRT-327 A4F • 2 user programmable modular user station MRT327 A5F • MRT-327 A5F • 2 user programmable modular user station The specification information is preliminary and is subject to change without notification. Brand names mentioned are the property of their respective companies. Bosch Security Systems, Inc. | 12000 Portland Avenue South | Burnsville, Minnesota 55337 Telephone: 877·863·4169 | Fax: (800) 323-0498 Form Number: F01U259392 Rev 04 Date: February 2013 General Input DC Voltage: Mode: 18 to 35 volts DC Local Power: 15 to 35 volts DC (12 to 15 volts DC, reduced performance) DC Current Drawn from TW Line Quiescent: 45mA ±10% Operating, 25Ω phones: 75mA ±10% Operating, 25Ω phones + call light: 90mA ±10% Operating, 8Ω speaker: 240mA ±10% Operating, 8Ω speaker + call light: 300mA ±10% DC Current Drawn from TW Line Notes: Operating current is measured with output level at 10dB below clipping. Local power option draws no current from TW line. Impedance Across Line: 10kΩ, minimum (designed for use with 200Ω “TW” intercom lines) Environmental Temperature: Operating: 0°C to 50°C (32°F to 122°F) Storage: 40°C to 85°C (104°F to 185°F) Humidity: Operating and Storage: 5% to 95%, non-condensing Noise Contribution: (Ch 2): <-60dBp (Ch 1): <-80dBp Microphone Preamplifier Input Impedance: 470Ω ±5% (dynamic mic) Source Impedance: 200Ω, (nom.) Maximum Input Level: 150 millivolts Frequency Response (-54dB input): 100Hz to 8kHz ±3dB Limiter Range: 30dB Carbon Mic Excitation Current: 10mA, (nom.) Microphone Current Source Output: 3.3 mA into 200Ω = ±1 volt peak, (nom.) Speaker Amplifier Maximum Voltage Gain: 30dB Frequency Response: 100Hz to 8kHz ±4dB Output Power: 1.5 watts into 8Ω (nom.) 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 into 25Ω (nom.) Output power: ½ watt peak into 25Ω Frequency Response: 150Hz to 10kHz ±3dB Headphone Impedance Range: 25 to 600Ω (600 to 2000Ω with reduced levels) Sidetone Adjustment Range: -20dB to full on Call Light Signalling Frequency: 20kHz ±100Hz Talk-Off Frequency: 24kHz ±100Hz Connectors Dynamic Microphone Headset: XLR type 6 pin female Panel Microphone: ¼-inch standard phone jack, 3-circuit Line Input: One (1) XLR type 3-pin female and one (1) XLR type 3-pin male, wired in parallel Mechanical Dimensions: 1.71” (44mm) H x 8.2” (208mm) W x 9.0” (228mm) D Weight: 2.75lb (1.25kg) Construction/Finish: Aluminum case, thermoplastic front panel, light gray finish