RS-442

Email your friend
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)