3020-dda.ib.rev0.doc
Page 10 of 17
09/03/2006
Alarm and external changeover connections:
Two Krone type connectors (JP1 & JP2) are provided on the rear panel providing the following for each of the
modules:
Pin 1
Loss of power - connection to ground indicates module is in bypass mode.
2
General Alarm - connection to ground indicates a loss of input or AIS detection.
3
External changeover request - connection to ground will make this module
Main
in
handshake mode.
4 Ground.
A third Krone type connector (JP3) provides remote status of which unit is
In Service (Main)
:
Pin T1
Connection to ground indicates that module 1 is the
In Service (Main)
module.
T2
Connection to ground indicates that module 2 is the
In Service (Main)
module.
T3 Not
Connected.
T4 Ground.
IRT
Communications
www.irtcommunications.com
