Avaya 03-300430 User Manual

The AC Power Supply (650A) for a G600 media gateway (Rack-Mounted Cabinet - RMC) 
supports one alarm lead that indicates the state of both the power and fan. The cabinets use 
variable-speed fans to reduce noise. The power unit contains thermal speed control. A 3-pin 
connector on the variable-speed fan assembly accepts variable input power to control its fan 
speed and power its alarm circuitry.

on page 1951 shows the LED and alarm conditions.

!

WARNING:

You can remove the fan assembly while the system is running, but you must 
replace the new assembly within 60 seconds to avoid a thermal overload.

1. Place the new fan assembly close to the G600.

2. Loosen the thumb screws on the fan assembly, and pull it straight out (unplug it) as shown 

on page 1952. The power for the fan automatically 

disconnects when the assembly is unplugged.

3. Plug in the new fan assembly. The power for the fan automatically connects when the fan 

assembly is plugged in.

4. Tighten every thumb screw on the fan assembly.

RMC-ENV

MAJ

test environment Power/Fan 

Sensors

Normal

Red off, 

amber on

Open

Normal

No input power

Red off, 

amber off

Closed

No input power

DC output not present 

(except neon)

Red on, 

amber off

Closed

DC output not present 

(except neon)

Fan alarm

Red on, 

amber on

Closed

Fan/Power alarm