RTS Cm-300l Data Sheet

Technical Data Sheet
In n o v at i n g t h e F u t u re o f Gl o b al C o m m u n i c a t i o n s
CM-300L
Console-Mount User Station
The CM-300L is a console mount, 2-channel intercom user station. The user station is designed to be used in a
full-duplex, conference line intercom system.
Features
• On the CM-300L, a toggle switch turns the microphone on or off. When the mic is turned on one (1) or more users talk
and the others listen.
• Volume control on the CM-300L has a wide range to compensate for: user hearing differences, ambient noise
variation, variations in headset/handset sensitivity, and variations in voice.
• Channel selector switch allows a choice of 2-channels.
• Call light push button transmits a call signal to all other units on the channel selected by the channel selector switch. A
call signal on this channel will cause the call light push button to flash. The flash rate is 2 to 5 times a second. The call
signal itself is a 20kHz signal.
Line Drawings
In n o v at i n g t h e F u t u re o f Gl o b al C o m mu n i c a t i o n s
Specifications
Input DC Voltage
TW Mode: 18 to 35VDC
LP Option: 15 to 35VDC
Battery: 12 to 35VDC (reduced performance)
DC Current Drawing from TW Line (Note: LP
Option draws no current from TW line)
Quiescent
CM-300/RM-300: 40mA ±10%
CM-300/RM-300L: 50mA ±10%
Operating 25Ω headphones
CM-300/RM-300: 60mA ±10%
CM-300/RM-300L: 60mA ±10%
Operating 25Ω headphones + Call Light
CM-300/RM-300: 100mA ±10%
Impedance Across Line: 10kΩ, minimum
Environmental
Temperature
Operating: 0°C to 50°C (32°F to 120°F)
Storage: -40°C to 85°C (-40°F to 185°F)
Humidity
Operating and Storage: 5% to 95% non-condensing
Noise Contribution
One Unit: -75dBu
Ten Units: -67dBu
Microphone Preamplifier
Input Impedance: 470Ω/dynamic mic
Source Impedance: 200Ω, nominal
Maximum Input Level: 150mV
Frequency Response: 100Hz to 10kHz ±3dB (-54dBu input)
Limiter Range: 30dB
Carbon Mic Excitation Current: 10mA, nominal
Headphone Amplifier
Voltage Gain: 34dB
Output Voltage: 8 volts peak-to-peak into 25Ω
Output Power: ½ watt peak into 25Ω
Frequency Response: 150Hz to 8kHz ±3dB
Headphone Impedance Range: 25 to 600Ω (600 to 2kΩ with
reduced levels)
Note: Do not use headphones with impedance less than
25Ω.
Sidetone Adjustment Range: 20dB
Call-Light
Signaling Frequency: 20kHz ±100Hz
Flashing Rate: 5Hz ±2Hz
Auxiliary Connections
Headset Connector
Dynamic Microphone: XLR type 4-pin female
Carbon Microphone: ¼” standard phone jack, 3-circuit
Line Connection
Input: XLR type 3-pin female
Loop/External: XLR type 3-pin female
Mechanical (CM-300/CM-300L)
Dimensions: 2.75” (69.9mm) H, 6.25” (158.75mm) W, 6.4
(162.6mm) D
Weight: 1.2lbs (0.55kg)
Finish: Front panel light gray enamel paint,
Chassis: Gold Iridite over aluminum
Current Source
Output: ±5mA into 200Ω = ±1 volt peak, nominal
Order Information
CM300L A4F • CM-300L A4F • 2-channel console mount user station with an A4F headset connector
CM300L A5F • CM-300L A5F • 2-channel console mount user station with an A5F headset connector
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: F01U281887 Rev 02
Date: February 2013
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