Specifications

G600 Media Gateway
Issue 6 February 2007 171
Fans
Three 12-volt DC variable-speed fans cooling for the G600 Media Gateway. The fans are
integrated into the back of the cabinet. The fans pull air through the front and the left side and
up through the cabinet. Air exits from the back of the cabinet. The 650A Global Power supply
controls the speed of the fans. The 650A Global Power supply varies the fan input voltage
between 8 VDC and 14 VDC, depending on a temperature sensor that is mounted in the power
supply, and adjusts each fan’s operating speed accordingly
The fan assembly includes the three fans, a base plate to which the fans are attached, wiring,
and an AMP connector. The AMP connector plugs into a cable that connects to the backplane.
The assembly is easily installed and removed. You must replace the entire assembly if a fan
fails. If a fan fails, the following events take place:
● An alarm through the power supply is detected as a power alarm.
● The remaining fans go into high speed.
● The red LED on the 650A Global Power supply faceplate lights up.
Specifications
Rack mounting
The G600 Media Gateway can be mounted in a standard 19-inch (48 centimeter) data rack that
is preinstalled and secured according to the EIA 464 or equivalent standards. The G600 Media
Gateway can be front mounted as shipped or mounted at its midpoint.
The customer must provide the rack, and the rack must be installed and secured prior to the
G600 Media Gateway installation. The customer must also provide AC power to the rack. The
technicians who install the G600 Media Gateway do not usually have the tools or proper training
for data rack installation.
Installation requires 1 foot (30 centimeters) of clearance in the rear, and 18 inches (45
centimeters) of clearance in the front, which is consistent with the EIA 310 standards. In a
2-cabinet configuration, the dimensions of the TDM/LAN cable require that you mount the B
cabinet directly over the A cabinet.