GasTech GTA-4100R Operator's Manual page 16

As you can see in the image above, both the Micro Rack
common module. In the Micro Rack
19" rack case version, the common module is a separate card half the width of the GTA-4100R cards.
In the standard 19" rack case version, the common module has two settings:
1. Common Zoned - This is where jumper J1, J2, and J3 are in place. These will common all of the
channels and give the user two separate 10 amp relays for all the channels.
2. Double Zone - This where jumper J1, J2, and J3 are removed. This will zone the top channels together
and the bottom channels together giving one 10 amp relay for each zone.
NOTE: You can mix the zones – for example you can common zone the common low alarms but double
zone the common high alarms.
Page 12
TM
and the standard 19" rack case versions contain a
TM
the common module is built into the custom enclosure. In the standard
19" Rack Mount Common Module
J1
J2
J3
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