163.6 Installing Communication Cables If the power system connects to power and environmental monitoring equipment, connect thecommunications cables to the RS485/RS232 port on the DCSC. If the power system requires remote management over the WebUI or a third-party SNMP device,connect the communications cables to the FE port.3.7 Installing DC Output Power CablesPrerequisitesDANGER:Switch off all circuit breakers before installing power cables.ProcedureStep 1 Route DC output power cables through a cable hole on the rear of the subrack.Step 2 Connect the negative DC output power cable to the corresponding DC output terminal based onthe actual load power.Step 3 Connect the positive DC output power cable to the corresponding screw on the RTN+ busbar.Figure 23 – Installing DC Power Output Cables(1) Load3.8 Installing Battery CablesPrerequisitesCAUTION:Switch off all circuit breakers before installing power cables.ProcedureStep 1 Route battery cables from a cable hole on the rear of the subrack.Step 2 Connect the negative battery cable to the battery wiring terminal.Step 3 Connect the positive battery cable to the RTN+ busbar.