Ntbk51 Downloadable D-Channel Daughterboard; Install The Ntak79 Pri Card - Nortel Meridian 1 Option 11C Manual

NTBK51 Downloadable D-Channel daughterboard

Install the NTAK79 PRI card

A minimum of one NTAK93 is required for each PRI link. If more than one
PRI link is connected to the same end location, a single DCHI circuit card can
support up to a maximum of 8 PRI connections for the Option 11C system.
This allows for the support of 240 B-Channels or PRI trunks.
The NTBK51 DDCH daughterboard interfaces with the Meridian 1
Option 11C Central Processing Unit (CPU) and mounts on the NTBK50
2.0 Mb PRI circuit card for PRI D-Channel applications. The DDCH is
equivalent to the MSDL card used on the larger Meridian 1 systems, but it
only supports D-channel applications (no SDI or ESDI).
The NTBK51 DDCH daughterboard, when installed on the NTBK50 circuit
card, is addressed in the same slot as the NTBK50.
A minimum of one NTBK51 is required for each PRI link. If more than one
PRI link is connected to the same end location, a single DDCH circuit card
can support up to a maximum of 8 PRI connections for the Option 11C
system. This allows for the support of 240 B-channels or PRI trunks.
The steps required to install PRI are as follows:
1 Inspect the PRI card.
2 Set the switches on the PRI card.
3 Insert the PRI card in slots 1-9 of the Main cabinet, or in slots 11-19,
21-29, 31-39, 41-49 of the first, second, third, and fourth Expansion
cabinets, respectively.
4 Connect the cables.
Each of these steps is described in the pages that follow. The PRI hardware
installation procedure is the same regardless of the type of system at the far
end (i.e. another Meridian 1, AXE-10, SYS-12, etc.).
2.0 Mb PRI Implementation
Option 11C
Page 41 of 126
2.0 Mb DTI/PRI