RTS PS-31 User's Manual
Contents
1. Inc 12000 Portland Avenue South Burnsville Minnesota 55337 Telephone 800 392 0498 Fax 800 323 0498 Form Number 38110502 Date March 2006 Program Input Sensitivity 28 dBm to 14 dBm Ref 600 Q for 2 volts pp on RTS line Program Input Impedance 10 000 Q Program Frequency Response 3dB 100 Hz to 20 kHz input to RTS line Indicators Channel Status three green LEDs Channel Fault one red LED and one audible alarm Thermal Overload one red Neon type Switches One program channel assign switch one audible alert on off switch one power switch three 200 400 imped ance select switches Temperature 0 to 50 C operating 0 to 75 C storage Power Requirements Voltage 100 120 200 or 40 VAC 50 60 Hz versions available Power 100 volt amps Fuses AC panel fuse 100 120 volts 3A slow blow 200 240 volts 1 5A slow blow Internal DC fuses each channel 6A fast blow Dimensions 3 5 89 mm high 19 483 mm wide 10 5 267 mm deep Weight 14 5 pounds 6 6 kg Ordering Information PS 31 3 amp power supply for 30 stations Catalog Number 9000323300 This specifications information is preliminary and is subject to change without notification Brand names mentioned are the property of their respective companies2. Two Wire Intercom Innovating the Future of Communications PS 31 System Power Supply The Model PS 31 supplies 32 volts of regulated DC power to each of three intercom channels It has short circuit and thermal overload protection with automatic recovery when the fault is removed Program Input There is a program input connector on the rear panel A channel assign switch on the front panel assigns the pro gram to any of the three channels A level control adjusts the program level to the intercom channel Status Indicators There is an audible alarm and a red fault indicator for current overload indication on any of the three channels An audible alert switch on the front panel turns the alarm on or off but the fault indicator will continue to flash during current over load conditions There is also a green status indicator for each channel Each of these indicators will remain lit during normal operation but will turn off during a channel current overload condition Output current is automatically reduced during an overload and normal operation is restored when the overload is removed Input Power The PS 31 is available in two versions one for 115 VAC op eration and one for 230 VAC operation A power on off switch is provided on the front panel Intercom Channel Connections Intercom channels are connected to the rear panel of the PS 31 A variety of connector pin outs is provided to accom modate individual system r
3. equirements Impedance Selection The PS 31 provides the required channel terminating imped ance for each channel A 200 400 impedance select switch for each channel is located on the rear panel These switch es are set to 200 Q for normal operation The 400 Q setting permits two PS 31 s to be coupled to double the DC capacity of the system PROGRAM 1 2 a 3 RTS Tw Series CHANNEL LEVEL POWER SUPPLY ASSIGN PS31 a s CHANNEL STATUS FAULT 1 2 3 THERMAL OVERLOAD AUDIBLE ALERT PS 31 Specifications Channels Three Connectors Six XLR 3 type connectors two channel Three XLR 4 type connectors three channel One XLR 3 type connector program input DC Output Voltage each channel 32 volts nominal Line Terminating Impedance each channel 200 switchable to 400 when operating two supplies in parallel Output Current Ratings Max before fault indication 1 5 amps Sustained overload 50 C ambient 20 amps Max before foldBack limiting 2 5 amps Short circuit current 0 5 amps Startup current 0 5 amps Max Total Sustained Current 50 C ambient 2 0 amps Intercom Audio Level 2 volts pp nominal Head Room 6 dB minimum Frequency Response 75 Hz to 20 kHz 3 dB unloaded Signal to Noise and Hum Ratio Ref to 2 V pp 60 dB Program Input Balanced or unbalanced transformer isolated program assignable to channels 1 3 Contact Information Telex Communications
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