Nera Evolution Series - Alarm and Control Unit

40 Evolution Series - XPAND NGP\00329 Rev. C 23-06-2006
6.4.3. Alarm and Control Unit
The unit has four RJ45 connectors.
Transient protection: Amplitude: < 100 V
Transient protection: Duration: < 10 ms, non-repetitive
External alarm input interfaces:
Number: Eight two-pin interfaces. Galvanic isolated.
Interface: Current loop
State on: > 3.0 mA
State off: < 1.0 mA
Relay output interfaces:
Number: Four two-pin outputs.
Contact Ratings
Inductive Load: 0.5A at 24V DC
0.1A at 110V DC
Resistive Load: 0.8A at 24V DC
0.1A at 110V DC
Analogue Input Interfaces:
Number Seven single ended inputs, common analogue ground. Not galvanic
isolated.
4 inputs: Voltage Range: 0-20V DC
Impedance >100k ohm
2 inputs: Voltage Range: 18-65V DC
Impedance >100k ohm
1 input: Current Range: 0-50 mA
Impedance 50ohm