Nortel DMS-100 Series Maintenance Manual page 25

Performs digital looparound on command from the maintenance system.
Communication between LCA-0 and LCA-1, or between two LSGs occurs
through the single BIC in each drawer.
Line cards
The line cards are behind the BIC in 4 rows of a maximum of 16 line cards.
The top two rows of line cards form the odd-numbered LSG. The bottom
two rows form the even-numbered LSG. The LCA-1 control complex
controls the odd LSG of the two arrays and LCA-0 control complex controls
the even LSGs of the two arrays. This control occurs through the use of the
ten 32-channel P-side ports available on the DCC of each array.
The LSGs and the separate line cards in the LSGs are numbered. The LSG
numbers in an RLCM range from LSG-00 through LSG-19. Line card
numbers range from 00 through 31. These numbers identify and inventory
each line card in the DMS switch central control (CC) by line equipment
number (LEN). Refer to the following table.
Parts of LEN for RLCM
Part Description
Site Four-character alphanumeric name that identifies the remote site
location of the RLCM. The LEN for a line configured in the host
office has a site name of HOST.
Frame Number (00–99) that identifies the RLCM frame that contains the
line card.
LCM Number (0) that identifies the LCM in the frame that contains the
line card. The RLCM contains one LCM: LCM 0.
LSG Number (00–19) that identifies the line subgroup of the LCM that
contains the line card.
Circuit Number (00–31) that identifies the position of the line card in the
LSG. The example below describes how line cards are numbered
for identification in an LSG.
DMS-100 Family RLCM Maintenance Manual XPM12 and up
Maintenance overview 1-9