RTS manual RM-325Specifications, TW System Specifications, RM-325General Specifications

RM-325 Specifications

TW System Specifications

DC Operating Limits (station to power supply): About 5,000 ft. (1.5 km) with #22 AWG wire

Audio Operating Limits (locally powered stations): About 10,000 ft. (3 km) with low-capacitance cabling

System Capacitance:

0.3mF, maximum (10,000 ft. [3 km] cable at 30 pF/ft.) Intercom Channels:

Station Output Level: 0.7 Vrms (0 dBu) nominal

Channel Terminating Impedance: 200W ±5%

Station Bridging Impedance: greater than 10,000W Current Source:

Transfer Ratio: 3.3 mA/V = 3.3 milliseconds

Output: ±5 mA into 200W, ±1 Vpeak (limiter threshold) Call Signalling:

Send: 20 kHz ±100 Hz, 0.3 Vrms nominal

Receive: 20 kHz ±200 Hz, 100 mVrms Talk- Off Signalling:

Send: 24 kHz ±100 Hz, 0.3 Vrms nominal

Receive: 24 kHz ±200 Hz, 100 mVrms

RM-325 General Specifications

Power Requirements, Channel Powered RM-325: 30 VDC nominal (standard TW line), 45 to 75 mA

Power Requirements, Locally Powered RM-325: 24 VDC nominal, 45 to 75 mA

Environmental Requirements:

Storage: -40°C to 125°C; 0% to 95% humidity, non-condens- ing

Operating: 0°C to 50°C; 0% to 95% humidity, non-condens- ing

Dimensions:

1.72” (44 mm) high, 8.2” (208 mm) wide, 8” (203 mm) deep Weight:

2 lbs 12 oz (1.23 kg) Noise Contribution:

Less than -75 dB on the line Common Mode Rejection Ratio:

Greater than 40 dB from the line Program Input:

Maximum Input Level: 20 dBu

Nominal Input Level: -10 to +8 dBu

Frequency Response: 100 Hz to 12 kHz ±3 dB Headphone Amplifier

Voltage Gain: 30 ±3 dB from the line

Maximum Output: 150 mW into 50W

Frequency Response: 100 Hz to 8 kHz ±3 dB nominal

Output Voltage Level: 8 volts peak-to-peak

Headphone Impedance: 50 to 600W Sidetone:

20 dB minimum range, adjustable Microphone Preamplifier:

Maximum Voltage Gain: 54 dB

Contact Information

Telex Communications, Inc.

12000 Portland Avenue South

Burnsville, Minnesota 55337

Telephone: (800) 392-0498

Fax: (800) 323-0498

Form Number: RTS-20352-1

Date: March, 2006

Frequency Response: 100 Hz to 8 kHz, nominal

Input Impedance: 1,000W, balanced

Limiter Range: 30 dB

Total Harmonic Distortion:

Less than 0.2% nominal at Channel output

RM-325 Connectors

Auxiliary Connector

Type: DB-15F

Pin 1: Program input low

Pin 2: Program input high

Pin 3: Unswitched mic output high

Pin 4: Foot switch in, channel 1

Pin 5: Foot switch in, channel 2

Pin 6: Local power (+24 VDC)

Pin 7: Remote mic switch in

Pin 8: Not Used

Pin 9: Common

Pin 10: Common

Pin 11: Common

Pin 12: Foot switch channel 1 common

Pin 13: Foot switch channel 2 common

Pin 14: Local power common

Pin 15: Remote mic switch common CARB MIC Headset Connector

Type: ¼”, 3-Conductor Phone Jack

Tip: Microphone input high (or mic switch contact

Ring: Headphone high

Sleeve: Common DYN-MIC Headset Connector

Type: XLR-6F 6-Pin Female Audio Connector

Pin 1: Headset dynamic microphone low

Pin 2: Headset dynamic microphone high

Pin 3: Headphone and mic switch common

Pin 4: Headphone left high

Pin 5: Headphone right high

Pin 6: Remote microphone switch contact Intercom Line Input Connector

Type: XLR-3F 3-Pin Female Audio Connector

Pin 1: Common

Pin 2: Intercom channel 1 audio and power

Pin 3: Intercom channel 2 audio Intercom Line Loop Connector

Type: XLR-3M 3-Pin Male Audio Connector

Pin 1: Common

Pin 2: Intercom channel 1 audio and power

Pin 3: Intercom channel 2 audio Program Input Connector

Type: ¼”, 3-Conductor Phone Jack

Tip: Program input high

Ring: Program input low

Sleeve: Common

Ordering Information

RM-325 A5F • 2 channel binaural (stereo) program- mable modular user station • Catalog Number: 90007491000

RM-325 A4F • 2 channel binaural (stereo) program- mable modular user station with A4M headset con- nector • Catalog Number: 90007491001

This specifications information is preliminary and is subject to change without notification.

Brand names mentioned are the property of their respective companies.