PowerWalker LiFe Battery System 48-100 Manual De Instrucciones página 21

Step 4 (If an optional PDU module is required in the system):
Stack the PDU module on the top of all battery modules. Install two
fixing plates on both sides of the modules with eight screws.
3.3 Wiring Configuration
Step 1: Insert the supplied RJ11 jumper into one of the extension
ports on the top of the battery module.
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