Alarm And Control Unit - Nera Evolution Series Technical Description

6.4.3.

Alarm and Control Unit

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