Replacing An I/O Module Or Expansion Lan Switch - Motorola ACE3600 RTU Owner's Manual

Procedure 29-2 How to Replace a Redundant/Expansion Power Supply Module
1. To replace the second power supply module in a site which has redundant power supplies,
or an expansion power supply in an I/O expansion frame, open the door of the power
supply module and press the cable holder downward.
2. Disconnect the cables from the connectors.
3. Simultaneously press on the tabs on the top and bottom of the plastic front of the old
module, and pull the module from its slot.
4. Slide the new module all the way into the slot until the tabs click into place.
5. Reconnect the cables and press the cable holder back up into place.
The main power supply cannot be removed under power and a safeguard is added in order to
prevent unplanned removal. (Note: The dual power supply feature is not currently available.)
Procedure 29-3 How to Replace the Main Power Supply Module
1. To replace the main power supply module, open the door of the power supply module.
2. Press down on the top of the main power cable connector to disconnect the user's main
power cable from the cable inlet on the bottom of the power supply module front panel.
3. Follow steps 1-5 in Procedure 29-2 to replace the power supply.

Replacing an I/O Module or Expansion LAN Switch

To replace an I/O module or Expansion LAN Switch, follow the procedure below.
Procedure 29-4 How to Replace an I/O Module or LAN Switch
1. If the I/O module includes a TB holder, remove TB holder by pulling on the extractor
handles.
If the I/O module does not include a TB holder, remove the TBs by hand or using one of
the TB extractor tools (FHN7063A) provided with the RTU.
2. Simultaneously press on the tabs on the top and bottom of the plastic front of the old
module, and pull the module from its slot.
3. Remove any plug-in 24V power supplies from the old I/O module and plug-in to the new
I/O module.
4. For DO relay modules, reset the 12VDO dip switch, if necessary. See the Configuration
chapter.
5. Slide the new module all the way into the slot until the tabs click into place.
6. If the I/O module includes a TB holder, reconnect the TB holder as described in the I/O
Module section.
If the I/O module does not include a TB holder, replace the TBs on the connectors on the
front of the I/O module by hand.
29-3
Break/Fix Procedures