GAI-Tronics 12831-003, 12831-004 Zone 2/22 ICS Termination PCBA Upgrade Kits - Manual (Page 2)

Pub. 42003-269A
M ODEL 12831-003 & 12381-004 Z ONE 2/22 ICS T ERMINATION PCBA U PGRADE K ITS Page 2 of 6
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Figure 1. ICS Zone 2/22 Station – Interior View
Installing the Termination PCBA
1. On the Termination PCBA, unplug the ribbon cable at P3 and the power cables at P1 and P2 (dc
only).
2. Remove the six screws that secure the Termination PCBA to the rear mounting plate and remove the
Termination PCBA.
For the Model 12831-004 Kit (dc version) only:
a. Remove the two screws that secure the power supply housing to the rear mounting plate.
b. Unplug the input power cable assembly from the ac or dc power supply. The ac power
connector is a three-position plug and the dc power connector is a five-position plug.
c. Plug in the new input power cable assembly provided with the kit into the power supply.
d. Reattach power supply housing to the rear mounting plate with two screws, routing the wires
behind the power supply and housing.
3. Attach the new Termination PCBA to the rear mounting plate with six screws.
4. Plug the ribbon cable back into P3 of the Termination PCBA.
5. Plug the power cables back into P1 and P2 (dc only) of the Termination PCBA. Refer to Figure 2 for
the completed assembly configuration.
6. Place the upgrade kit label on the power supply housing as shown in Figure 2.