Nortel Meridian 1 Option 11C, Administration And Maintenance

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Appendix A — 2Mb PRI implementation Page 437 of 492
Option 11C ISDN BRI Administration and Maintenance
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 11 system. This
allows for the support of 240 B-Channels or PRI trunks.
NTBK51 Downloadable D-Channel daughterboard
The NTBK51 DDCH daughterboard interfaces with the Meridian 1 Option
11 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 11 system.
This allows for the support of 240 B-Channels or PRI trunks.
Installing PRI hardware: NTAK79 PRI card
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 the main cabinet (slots 1-9 only)
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.).
Inspecting the NTAK79 circuit card
— Locate the NTAK79 2 Mb circuit card and carefully remove it from its
packaging.
— Inspect the circuit card for any visible damage which may have occurred
during shipping.