Style Z Notification Appliance Circuit (each signal circuit)
From + to station ground
From -
to station ground
From + OUT to + IN
From -OUT to - IN
Resistance across circuits
In one direction
In opposite direction
Infinity
Infinity
Less than 50 ohms
Less than 50 ohms
Infinity
Less than 200 ohms
STEP #5
RE-MOUNTING ELECTRONIC COMPONENTS IN BACK BOX
Note: Care must be taken to avoid contact and potential static damage to the printed circuit boards during the
following procedures. A grounding wrist strap is recommended.
l
Make sure system ground wire is attached to the green lug screw in the back box.
Re-mount the transformer first.
l
Re-mount electronic sub-assemblies complete with rails using screws provided in the same relative box position
as they were shipped from the factory (see F.W. diagrams 641-669).
l
Connect ALL cables and wiring harness in original locations as shipped from the factory and previously marked
during back box installation.
23
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