Telex PS-4001 - Manual (Page 5)

5
Specifications
GENERAL
Input Power Requirements: 100 to 240 VAC, 50/60 Hz
Output Power (each channel): 24 ±1 VDC, 1 Amp per channel
Dimensions: 1.75” (44.5mm) high x 8.25” (209.5mm) wide x 10.31” (261.9 mm) deep
Weight: approxiamately 2.5lb. (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 Pinout
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 Pinout
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