Huawei ECC500 User Manual page 91

ECC500
User Manual
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The main control module, RS485, AI/DI, and GPRS expansion cards can be replaced in the
same way. This section describes how to replace the main control module.
Procedure
Step 1 Remove cables from the old module, and insulate the cables and paste labels.
Step 2 Loosen the two captive screws on the panel of the old module counterclockwise by using an
M3 screwdriver.
Step 3 Hold the handle with both hands and pull out the module, as shown in
Figure 6-1 Removing an old module
Step 4 Grasp the handle of the new module and put the module into the correct slot in the ECC500
subrack.
Step 5 Push the new module into the subrack until their front panels are aligned with each other.
Step 6 Close the handle.
Step 7 Push and tighten the captive screws using the M3 screwdriver, as shown in
Issue 03 (2020-01-06)
Before replacing parts, ensure that the power supply to the ECC500 has been disconnected
and power cable terminals have been removed.
Only trained and qualified personnel are allowed to perform the operations.
Operation personnel must wear electrostatic discharge (ESD) gloves.
Replace the AI/DI module if it is faulty. For the replacement method, see
Rack-mounted AI/DI Module
Copyright © Huawei Technologies Co., Ltd.
or 4.2.4 (Optional) Installing a Wall-mounted AI/DI
6 Maintenance and Troubleshooting
4.2.3 (Optional) Installing a
Module.
Figure 6-1.
Figure 6-2.
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