Specifications

SSG 500-series Installation and Configuration Guide
50  Replacing Power Components (SSG 550 Only)
2. Loosen the retaining screws on the terminal block.
3. Remove the feed wires.
4. With your thumb, slide the ejector tab on the power-supply faceplate to the
right, and hold it in place to unlock the power supply.
5. Grasp the handle on the power-supply faceplate, and pull firmly to start
removing the power supply. Slide it halfway out of the chassis as shown in
Figure 17.
6. Place one hand underneath the power supply to support it, then slide it
completely out of the chassis.
Installing a Power Supply Unit
To install an AC PSU:
1. Attach an ESD grounding strap to your bare wrist, and connect the strap to the
ESD point on the chassis or to an outside ESD point if the device is
disconnected from earth ground.
2. Using both hands, slide the PSU into the chassis until you feel resistance.
3. Firmly push the power supply into the chassis until it comes to a stop. Make
sure that the PSU is flush with any other adjacent PSU.
4. Insert the appliance-coupler end of a power cord into the appliance inlet on the
power-supply faceplate.
5. Insert the power-cord plug into an AC power-source receptacle.
6. Verify that the power cord does not block access to device components or
drape where people might trip on it.
To install a DC PSU:
1. Attach an ESD grounding strap to your bare wrist, and connect the strap to the
ESD point on the chassis or to an outside ESD point if the SSG device is
disconnected from earth ground.
CAUTION: Ensure that the DC cables do not touch the two screws on the chassis
that are adjacent to the terminal block. Contact between the DC cables and the
chassis screws will cause a circuit failure.
NOTE: If you are not reinstalling a power supply into the emptied slot, install a blank
power-supply faceplate over the slot.
NOTE: Each power supply must be connected to a dedicated AC power feed.