Installation, 4 generator connection, Figure 1-10 generator monitor connections – Alpha Technologies USM2.5 Status Monitor User Manual
Page 15
1.4
Generator Connection
The Generator Connector provides the Transponder with alarms and status signals. Control
signals can also be sent to the generator for test and Run / Stop. Refer to the ECM operation
and maintenance manual for further information on the generator connections.
PIN #
Generator connection
1
APU Fail / Major Alarm
2
APU Minor Alarm
3
Engine Alarm
4
Gas Hazard Alarm
5
APU Test Fail Alarm
6
APU Enclosure Alarm
7
Engine Status
8
APU Enclosure Tamper
9
APU Signal Return / ground
10
APU Run / Test Command
11
Run / Test Command Return
12
No Connection
1. Installation
Figure 1-10 Generator monitor connections
Alpha P/N 874-975-20
Output 1
LRI
Battery
Input
Temp
Probe
Battery
Breaker
To Generator
Compartment
1
5
9
2
6
10
3
7
11
4
8
12
Wire Entry
View
6
12
5
11
4
10
3
9
2
8
1
7
Wire Entry
View
15
018-041-C0-002 Rev. B