Troubleshooting guide

Table Of Contents
180
3300 ICP Technician’s Handbook
CX II/CXi II
Add an AOB to a CX II or CXi II controller to increase LS CLASS circuits
from 6 to 12 and ONS CLASS circuits from 4 to 8 (see page 251).
To add or replace an AOB in a CX II/CXi II:
1. Power down the controller and remove the controller cover; see pages
47 and 129.
2. If adding the AOB, remove the blanking panel from the back of the
controller.
Figure 46: Remove Blanking Panel
Figure 45: Screws and Standoffs on the Analog Option Board