TerraWave GTRM 100 KIT V3.0 - Manual (Page 8)

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Using a Terminal Block: The #6 wiring will then be reduced to 18 AWG wire inside the cabinet or shelter
by using a standard terminal block. The 18AWG will then connect to the GTRM channel block.
Connecting the Comm Terminal: The Common wire from the GTRM is connected to the main ground
bar inside the shelter or cabinet. The common wire must be connected or the GTRM will not function
properly.
Step 3: Connect Power to the GTRM
The GTRM comes in both AC and DC versions. The DC version is preferred as it allows you to connect the
GTRM directly to your site power supply which takes advantage of battery backup and provides
continuous monitoring in the event of a power outage or if the copper thieves cut the AC power to the
site.
DC powered GTRM will wire directly into your site DC power supply or terminal block.
AC powered GTRM comes with an adapter that plugs into any standard 120VAC outlet or power strip.