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12 ecm - enclosure alarm interface, Fig. 4-13 enclosure alarm interface, Interconnection – Alpha Technologies AlphaGen 5.0kW Auxiliary Power Unit User Manual

Page 78: 3 connectors, continued, Pin description function

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4. Interconnection

78

031-132-B0-001 Rev. A

TM

©2000

4.3

Connectors, continued

The Alarm Interface Connector (J10) connected to the Power PCBA. The

interface control is a 14-pin (2x7 row) Universal Mini Mate-’N’-Lok style male

connector. See Fig. 4-9, item 10 for location.

Pin

Description

Function

1

Water Intrusion Sensor

Contact OPEN (HIGH signal) denotes Water

Intrusion

2

Water Intrusion common

Return signal path for sensor

3

Pad Shear Sensor

Contact CLOSED (LOW signal) denotes Pad Shear

4

Pad Shear Common

Return signal path for sensor

5

Low Fuel Pressure Sensor

Contact CLOSED (LOW signal) denotes Low Fuel

Pressure (LPV Versions only)

6

Low Fuel Pressure Common

Return signal path for sensor

7

Gas Hazard Sensor Switch

Active OPEN signal denotes Gas Hazard

(Logic HIGH)

8

Gas Hazard Power/Alarm

(Common)

Return signal path for sensor

9

Gas Hazard Logic Power

(+12VDC Fused)

Logic Power for Logic PCB & sensor

10 Door Open Sensor

Contact CLOSED (LOW signal) denotes Door is

OPEN

11 Door Open Common

Return signal path for sensor

12 No Connection

13 Cabinet Fan +12V Fused

+12VDC supplied to Fan – non-switched

14 Cabinet Fan Common

Return path for Fan

5($5 9,(:

:,5( 6,'(

-

5($5
9,(:

4.3.12 ECM - Enclosure Alarm Interface

Fig.4-13 Enclosure Alarm Interface