Nortel Networks 553-3001-211 manual NT8D37AA, NT8D37BA

Models: 553-3001-211

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NT5D11 and NT5D14 Lineside T1 Interface cards Page 199 of 894

Certain vintage levels have dedicated 25-pair I/O connectors only for card slots 0, 4, 8, and 12. These vintage levels are cabled with only 16 pairs of wires from each card slot to the I/O panel. Some of the 25-pair I/O connectors are split between adjacent card slots. Other vintage levels cable each card slot to the I/O panel using a unique, 24-pair connector on the I/O panel. In these vintage levels, the lineside T1 card can be installed in any available pair of card slots. However, because of the lower number of wire pairs cabled to the I/O panel in the lower vintage level, only certain card slots are available to the lineside T1 card.

See Table 79 for the vintage level information for the NT8D37 IPE modules.

Table 79

Lineside T1 card – NT8D37 IPE module vintage level port cabling

 

Number of ports

Vintage Level

cabled to I/O panel

 

 

NT8D37AA

16 ports

 

 

NT8D37BA

24 ports

 

 

NT8D37DC

16 ports

 

 

NT8D37DE

16 ports

 

 

NT8D37EC

24 ports

 

 

Vintage levels cabling 24 ports

For modules with vintage levels that cabled 24 ports to the I/O panel, the lineside T1 card can be installed in any pair of card slots 015.

Circuit Card Description and Installation

Page 199
Image 199
Nortel Networks 553-3001-211 manual NT8D37AA, NT8D37BA