Installing The Async 232↔422/530 Card In The Chassis - Black Box Async 232 422/530 Manual

ASYNC 232↔422/530 CARD
Switching the Power Supply Between 120 and 240 Volts
Although the MicroRack 16 is shipped from the factory with a customer-
specified power-supply configuration, you can change the configuration
yourself. Follow the steps at the top of the next page to switch the
configuration of the power supply between 120 and 240 VAC:
1) Remove the front power-supply card and locate the two-position switch
near the back of the card. Slide the switch to the desired voltage. (Note:
The actual values on the switch may be "110/220" or "115/230.")
2) Replace the existing fuse with one of the correct value.
3) Replace the power-supply cord, if necessary.
4.2 Installing the Async 232↔422/530 Card in the Chassis
The Async 232↔422/530 Card is made up of a front card and a rear card.
The two cards meet inside the rack chassis and plug into each other by way
of mating 50-pin card edge connectors. Use the following steps as a guideline
for installing each Async 232↔422/530 Card into the rack chassis.
1) Slide the rear card into the back of the chassis along the metal
rails provided.
2) Secure the rear card using the metal screws provided.
3) Slide the Function card into the front of the chassis. It should
meet the rear card when it's almost all the way into the chassis.
4) Push the front card gently into the card-edge receptacle
of the rear card. It should click into place.
5) Secure the front card using the thumbscrews.
Since the MicroRack chassis allows hot-swapping of cards, it is not
necessary to power down the rack when you install or remove an Async
232↔422/530 Card.
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