Insert The Ntbk50 - Nortel Meridian 1 Option 11C Manual

Page 52 of 126 2.0 Mb PRI Implementation

Insert the NTBK50

Connect the cables
553-3011-315 Standard 13.00
Remove the daughterboards from the NTBK50
Use these guidelines to remove the NTAK20 and NTBK51 or NTAK93 from
the NTBK50 PRI card. Because of the physical layout of the mother and
daughterboards, the NTAK20 should be removed before the NTAK93 or
NTBK51.
1 Starting at the two corners opposite the connector, gently lift each corner
out of the locking groove of the standoff.
2 At the two corners adjacent to the connector, gently lift the entire side
until the mounting holes are clear of the locking groove of the standoff.
3 To remove the connector pins, grasp the edge of the board adjacent to the
connector and lift gently.
If more than one NTBK50 card is installed, the additional cards may not carry
daughterboards, depending on the system configuration. At least one
NTAK20 (per system) is always required.
Slide the circuit card into any unused card slot 1 through 9 in the main cabinet,
or in slots 11-19, 21-29, 31-39, 41-49 of the first, second, third, and fourth IP
xpansion cabinets, respectively. Secure the circuit card in the cabinet by
locking the lock latch assemblies. The card number associated with a 2.0 Mb
PRI card is based on the slot in which the card is installed.
Follow the instructions below to connect cables to the NTBK50 PRI card.
Also, refer to Figure 6.
• In the cabling area, located directly below the card cage, remove the
retaining bar used to secure the MDF cables. Connect the
NTBK05DA/CA interface cable to the 50 pin Amphenol connector
below the slot in which the NTBK50 is installed. Re-install the retaining
bar to secure the cable(s) in place.
• Terminate the NTBK05DA/CA carrier cable as required.
January 2002