Nortel Meridian 1 Option 11C, Администрирование и обслуживание

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Page 442 of 492 Appendix A — 2Mb PRI implementation
553-3011-311 Standard 7.0 May 1999
NTBK05CA pinouts
The pinouts for the NTBK05CA cable are as follows:
Installing PRI hardware: NTBK50 PRI card
The NTBK50 serves as a motherboard to the NTAK20 clock controller, and
either the NTBK51 Downloadable D-Channel handler or the NTAK93
D-channel handler.
The steps required to install PRI are as follows:
1 Inspect the PRI card and daughterboards
2 Set the switches on the PRI card
3 Mount the daughterboard(s) on the PRI card
4 Insert the PRI card in the main cabinet
5 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 NTBK50 circuit card
— Locate the NTBK50 2 Mb circuit card plus associated daughterboard(s)
and carefully remove them from their packaging.
— Inspect the circuit cards for any visible damage which may have occurred
during shipping.
From:
50 pin MDF
connector
To:
Transmit coax
connector To:
Receive coax
connector
To:
50 pin MDF
connector
pin 23 Inner conductor — —
pin 48 outer conductor — —
pin 24 — Inner conductor —
pin 49 — outer conductor —