15
4.
Correctly orient the power module. Grasp the handle of the power module with one hand and
support its bottom with the other, and slide the power module slowly along the guide rails into
the slot until it clicks into place.
To prevent damage to the power module or the connectors on the backplane, insert the power
module gently.
The power module and power module slot are foolproof. If you encounter any hard resistance
while inserting the power module, pull out the power module and insert it again.
Figure 19 Installing the power module
Removing a power module
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Disconnect the power cord from the power source.
3.
Loosen the cable tie, and remove the power cord.
4.
Grasping the handle of the power module with one hand and using the thumb to press the latch
towards the handle, pull the power module part way out of the slot. Then, support the power
module bottom with the other hand, and pull the power module slowly out of the slot along the
guide rails.
Keep the removed power module in an antistatic bag or the package bag for future use.
5.
If you are not to install a power module, install the filler panel in the slot to prevent dust and
ensure good ventilation.
Connecting the power cord
WARNING!
Provide a circuit breaker for each power module and make sure the circuit breaker is off before
installation.
The power cord connection procedure is the same for the PSR250-12A and PSR250-12A1 power
modules. The following procedure connects the power cord for a PSR250-12A power module.
To connect the power cord:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Connect the plug of the power cord to the power receptacle on the power module.