Programming instructions

113
Upgrades and FRUs
Analog Option Board (MX Controller)
Install an AOB to increase LS CLASS circuits from 6 to 12 and ONS
CLASS circuits from 2 to 4 (see page 262).
To add or replace an AOB in an MX:
1. Power down the controller (see page 99).
2. Remove the cover (see page 100).
3. Remove the four screws from the back portion of the Analog Main
Board (AMB) (see Figure 23 on page 136).
4. Install and secure the standoffs that ship with the Analog Option
Board.
5. Insert the Analog Option Board onto the AMB. Ensure it is well-seated
in its socket.
6. Attach the four screws that you removed from the AMB.
7. Replace the top cover (see page 100).
8. Power up the controller.
9. In the System Administration Tool, go the Analog Services Unit
Configuration form.
10. Select Unit 4 and click Modify.
11. Select 3300 Expanded Analog and click Save.