IP Intercom Switch Board
RS-442
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) |