Verilink APS Card Replacement (CG) Configuration/Installation Guide - Manual (Page 2)

9) Carefully slide the BLACK lead slide-on connector onto wire wrap pin 35 of C15 (see Figure 1). If the connec-
tion feels loose, remove and gently compress the connector end slightly using a pair of flats. Once the slide-on
connector is attached and the installer is confident that the connection is firm, proceed to the next step.
Caution: Take care not to short any wiring connections while making the power/jumper cable attach-
ment.
10) Next, carefully slide the WHITE lead slide-on connector onto wire wrap pin 33 of C15 (see Figure 1). If the con-
nection feels loose, remove and gently compress the connector end slightly using a pair of flats. Once the slide-
on connector is attached and the installer is confident that the connection is firm, proceed to the next step.
11) After both the black and white leads are attached, physically secure the power/jumper cable wiring using one or
more tie wraps. This will insure that the leads are not torn loose.
12) Verify that the front panel of the Power and Alarm card does not indicate any blown fuses (A or B) and that all
cards in the shelf appear normal.
13) Insert a 3 A, Type 70 fuse in the temporary 23 A fuse position.
14) After powering the 23 A temporary fuse position, verify that the front panel of the Power and Alarm card does
not indicate any blown fuses (A or B) and that all cards in the shelf appear normal.
15) Before swapping out the old Power and Alarm card with a replacement, set the chassis address switches on the
replacement card so that they match the address DIP values set on the old card (see Figure 2, Item #1).
Caution: Failure to properly set the chassis address of the Power and Alarm card will prevent the APS
manager from communicating with this shelf.
16) After the chassis address DIP switches have been properly set, verify that the 3 A fuses in the replacement card
(Fuse A and Fuse B) are in place and not blown (fuse type is GMT, 3 A)
17) The installer is now ready to remove the old Power and Alarm card and replace it with the new card. To remove
the old card, unscrew the top and bottom retaining screws and remove. After the card is removed, simply insert
the new card into the card guides and firmly push the card in until it is seated into the backplane connector. Then
secure the card in place using the two retaining screws.
18) After replacing the card, verify that the Power and Alarm card has no fuse alarm indications and that the other
cards in the chassis appear to be operating normally.
19) After installing the replacement Power and Alarm card and verifying that it is operating properly, remove the
fuse from the temporary 23 A fuse position.
20) After removing the fuse, carefully remove (one at a time) the BLACK and WHITE slide-on connectors from pin
35 and pin 33.
21) Remove the power/jumper leads from the 23 A temporary fuse block.
22) The card replacement is now complete.
The TxPORT power/jumper cable and the old Power and Alarm card should be returned as soon as possible for
rework. This material will then be reused. Make sure that the power/jumper cable and the old Power and Alarm card
is placed back in the original container and return to:
AT&T Central Stock Plug-In Warehouse
Eastpoint, Georgia