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IP Intercom Switch Board


The RS-442 is a switch board designed for use with the N-8400RS 4-Wire Substation Interface Unit. You can make desired switch panels to meet intended purposes by combining the RS-142 with theseparately prepared operation panel having 3 switches to be used as call buttons. Also, it can be used in connection with the RS-481 Ip Intercom Option Handset.

Call Button Wiring 6 cables (for 3 momentary switches)
Rated Input 1 W
Control Output Open collector, Maximum controlled voltage: 30 V DC
Control current: 30 mA
Microphone Electret condenser microphone
Wiring Twisted pair cables (2 pairs)
Transmission Range 1 km (1093 yd)/φ0.5 mm (AWG24)
1.5 km (1640 yd)/φ0.65 mm (AWG22)
2 km (2187 yd)/φ0.9 mm (AWG19)
Operating Temperature 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Weight 140 g (0.31 lb)
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