Allied Telesis AT-PWR1200 User Manual

Chapter 3: Removing Power Supply Modules

76

Here are the steps to removing the AT-RPS-CBL1.0 cable from an RPS 
port on the AT-RPS3000 Chassis and switch:

1. On the front panel of the AT-RPS3000 Chassis, examine the CABLE 

LED of the RPS port to which the AT-RPS-CBL1.0 cable is connected. 
If the LED is off, go to the next step. If the LED is green, press the On/
Off button to turn off the port. The LED should turn off.

For example, if you want to disconnect the cable from RPS port 3 on 
the AT-RPS3000 Chassis, check the CABLE LED for port 3. If the LED 
is on, press the port’s On/Off button to disable the port.

Never connect or disconnect an RPS cable from an RPS port on an 
operational AT-RPS3000 Chassis without first turning off the port. 
Failure to disable an RPS port may damage the redundant power 
supply system.

2. Loosen the two thumbscrews that secure the cable to the RPS port on 

the AT-RPS3000 Chassis.

Figure 56. Loosening the Thumbscrews that Secure the AT-RPS-CBL1.0 

Cable to the AT-RPS3000 Chassis

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