RTS PS-31 Power Supply
Description
These units may show signs of heavy wear but are in good working condition.
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.
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Features
- Program Input: There is a program input connector on the rear panel. A channel assign switch on the front panel assigns the program to any of the three channels. A level control adjusts the program level to the intercom channel.
- Status Indicator:
- 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 overload 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.
- Intercom Channel Connections: Intercom channels are connected to the rear panel of the PS31. A variety of connector pin-outs is provided to accommodate individual system requirements.
- Impedance Selection: The PS31 provides the required channel terminating impedance for each channel. A 200/400 ohm IMPEDANCE SELECT switch for each channel is located on the rear panel. These switches are set to 200 ohms for normal operation. The 400 ohm setting permits two PS31's to be coupled to double the DC capacity of the system.
- Dimensions: 3.5” (89 mm) high, 19” (483 mm) wide, 10.5” (267 mm) deep
- Weight: 14.5 pounds (6.6 kg)
- (1) PS-31 Power Supply
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Ships from: United States
