Owner`s manual

Break/Fix Procedures
18-4
2. Unscrew the two supporting pins on the other side of the CPU board. Save the screws.
3. Unscrew the two supporting pins on the plug-in port. Save the screws.
4. Connect the two supporting pins with screws to the new plug-in port.
5. Replace the plug-in board with the RJ-45 connector facing the panel. Carefully insert the
plug-in board connector into the appropriate connector on the CPU board.
For Ethernet 10/100 MB,
use the J14 connector on the CPU (Plug-in 1 only.)
For all other plug-in ports,
use the J5 (Plug-in 1) or J6 (plug-in 2) connector.
6. Connect the two supporting pins with screws to the other side of the CPU board.
7. Replace the CPU module in the slot.
Replacing a Plug-in SRAM Memory Card in the CPU Module
Procedure 18-5 How to Replace a Plug-in SRAM Memory Card in the CPU Module
To replace an SRAM memory card on the CPU module,
1. Remove the CPU module from the RTU.
2. Remove the old plug-in SRAM memory card from the board.
3. Place the new plug-in SRAM memory card with the connector facing the panel. Carefully
insert the plug-in board connector into the connector marked P12 on the CPU board.
4. Secure the memory card to the CPU board with the supplied screw.
5. Replace the CPU module in the slot.
For more information, see Connecting SRAM Expansion Memory to the CPU Module in the
CPU Module chapter.
Replacing the Motherboard
Procedure 18-6 How to Replace the Motherboard
To replace the motherboard of the ACE3600 RTU,
1. If the unit is installed in a NEMA4 housing, unscrew the four large screws and remove the
metal chassis from the housing.
2. Remove all modules from the outermost slots, generally the power supply module from the
leftmost slot and I/O module from the rightmost slot.
3. Unscrew the M5 screws on each side which secure the motherboard to the metal chassis.
Save the screws. See Figure 18-2.