Nortel Networks DCT1900 - Manual (Page 169)

Technical Product Manual - DCT1900
Installation Instructions, or BDVNB 101 01/3
Install-DCT1900/R8/mw 4-15
© 2000-2005
The actual operation of adding a cabinet takes place in two steps, before the scheduled downtime
and during the scheduled downtime. Before the scheduled downtime you can:
z Prepare the new cabinet.
z Hang the mounting bracket for the new cabinet.
Once this is done and you are at the scheduled downtime you can:
z Add the new cabinet via CSMW.
z Power down the existing cabinets.
z Mount the new cabinet.
z Power the system back up.
z Testing and back up.
Preparing the new cabinet
Once the new cabinet location has been decided, you must prepare for installation. For the
purpose of this discussion, we are adding a second cabinet to an existing one cabinet system.
The following procedure works for this or a third or a fourth cabinet. The only differences will be
which side of the backplane and cabinet you will be working with.
We will be adding the second cabinet to the right hand side of cabinet #1 as you look at cabinet
#1.
z Unpack the new cabinet. Make sure you get the bracket. It is in a plastic bag on the top of the
packaging. Once you take the cabinet out of the plastic bag, remove the labels from the back
of the cabinet.
z Remove the front cover, bottom plate, and card retention bar. Keep the covers, bar, and
screws together.
z Lay the cabinet on its back and examine the backplane. Since the left side of the new cabinet
is going up against cabinet #1, this is the side we are interested in.
z Locate the (3) termination resistors, R401, R402, and R407 on the backplane. Refer to
Figures 4-9 and 4-10. With a pair of needle nose pliers pull the resistor packs up off the
sockets on the backplane. DO THIS CAREFULLY. Save the resistors.
z Locate the knockout plate on the left side of the new cabinet. Refer to Figure 4-4. Remove
this plate. DO THIS CAREFULLY. It is recommended that you use a fine tip pair of cutters to
cut the plate out.
z Open the interconnect kit, NTMBN 101 05. Remove (2) of the metal shielding gaskets, refer to
Figure 4-5, and install them into the knockout hole on the side of the new cabinet.
z Place the card slot label along the bottom of the cabinet directly below the card guides.
z Place the cabinet label along the top edge of the cabinet above the card guides.
At this point, it might be a good idea to verify that the power wiring of the cabinet is correct. Take
one of the power supplies for the new cabinet and hook it up to the terminal block on the bottom of
the cabinet. Refer to Figure 19-2 for connection information.
z Turn the power supply on and measure the voltage of the terminal block. The voltage should
be -48VDC.
z If the voltage is correct, turn the cabinet power switch on. Measure the voltage on the terminal
block again.
z Turn the cabinet power switch off.