Specifications

4-15
Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
Chapter 4 Enclosure Installation
Rack Mounting an MGX 8230
The rear panel of each AC Power Supply Module has:
• An AC input connector
• A special cable that connects the DC output connector of the AC Power Supply Module to the MGX
8230 backplane is supplied with your MGX 8230 for each AC Power Supply Module.
• Power Supply Enable (On/Off) switch
• Status light
• Power cable strain relief clamp
The AC Power Supply Module front panel has both a DC OK LED and an AC OK LED.
Installing AC Power Supply Modules in the AC Power Supply Tray (optional)
The AC Power Supply Modules slide into the Optional AC Power Supply Tray from the rear of the MGX
8230. As seen from the front of the MGX 8230, AC Power Supply A (PSA) is on the left, and AC Power
Supply B (PSB) is on the right. The front grill of the Optional AC Power Supply Tray has cutouts that
allow the AC OK and DC OK LEDs on the AC Power Supply Modules (PSA and PSB) to be seen.
If these power supplies were removed during installation of the card cage, follow the instructions below
to re-install them.
To install a 1200 Watt Power Supply Module in the AC Power Supply Tray, follow these steps:
Step 1 From the rear of the MGX 8230, slide a 1200 Watt AC Power Supply Module into the AC Power Supply
Tray.
Step 2 Secure the set screw on the top of the AC Power Supply Module to secure it in the AC Power Supply
Tray.
Step 3 Repeat step 1 and step 2 for the second 1200 Watt Power Supply Module if applicable.
If only one AC Power Supply Module is used in your system, make sure that the slot for the other AC
Power Supply Module is covered with a blank faceplate.
Making the Connections to the AC Power Supply Module(s)
Step 1 Connect a cable supplied with your MGX 8230 to the DC out connector on the optional AC power
supply.
Note Without the DC cable connected to the MGX 8230 backplane, the AC power supply will not
power up. This is a safety feature.
The other end of this cable has a connector and a fixture for attaching to the MGX 8230 backplane. The
cable from the left AC Power Supply Module is connected to the connector on the left side of the MGX
8230 backplane. Likewise, the cable from the right AC Power Supply Module is connected to the
connector on the right side of the MGX 8230 backplane.
Step 2 Use the appropriate AC power cord to connect the AC power source to the IEC receptacle(s) on the AC
Power Supply Module and tighten the strain relief clamp to secure the cable.