Telex PS-4001 Specifications, Intercom Channels General, Balanced Mode set to BAL position

Specifications

General

Input Power Requirements: 100 to 240 VAC, 50/60 Hz

Output Power (each channel): 24 ±1 VDC, 2 A

Dimensions 1.75”(44.5 mm) high x 8.25” (209.5 mm) wide x 10.31” (261.9 mm) deep Weight: approximately 2.5 lb (1.13 kg)

Environmental Requirements:

Storage: -20°C to 80°C, 0% to 95% humidity, non-condensing

Operating: 0°C to 50°C, 0% to 95% humidity, non-condensing

Intercom Channels

General

Connector Type: One XLR-3M audio connector for each channel. Pin-out depends on setting of BAL / UNBAL switch for balanced or unbalanced operation as defined below:

Balanced Mode (set to BAL position)

Line Terminating Impedance: 300 ohms ±10%

Connector Pin-out:

Pin 1 Common (audio and DC return)

Pin 2 Full-duplex, balanced intercom audio and +24 VDC output

Pin 3 Full-duplex, balanced intercom audio and +24 VDC output

Unbalanced Mode (set to UNBAL position)

Line Terminating Impedance: 150 ohms ±5%

Connector Pin-out:

Pin 1 Common (audio and DC return)

Pin 2 +30 ±1 VDC output

Pin 3 Full-duplex, unbalanced Intercom audio high

Approvals

UL, CUL, CE

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