Line Drawers - Nortel DMS-100 Series Maintenance Manual

Line drawers

Each line drawer (NT6X05) in the LCA shelf has one bus interface card
(BIC) and a maximum of 64 line cards of various types. The following
figure shows the side view of a typical LCA line drawer. The line drawer
can be withdrawn from the frame to access line circuit cards, yet remain
operative because of flexible cables connected to the rear receptacles.
LCA line drawer NT6X05AA, circuit card location
Bus interface card NT6X54
Drawer state display
The codes used to display line drawer states at the MAP terminal are listed
in table "LCM drawer states." This text uses standard abbreviations rather
than code to describe line drawer states.
Line circuit cards
Line subgroup
to flexible cables
Drawer front
DMS-100 Family Maintenance Manual ABSK007
Maintenance overview 1-33
16–31
Odd
LSG
00–15
16–31
Even
LSG
00–15