Nortel DMS-100 Series Maintenance Manual page 44

2-24 Star Remote System hardware
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Line cards
The line cards are located behind the BIC in 4 rows of up to 16 line cards in
each row. The top two rows of line cards form the odd-numbered LSG and the
bottom two rows form the even-numbered LSG. Normally, unit 1 of the Star
Hub control shelf controls the odd LSG of all line drawers; unit 0 of the Star
Hub control shelf controls the even LSGs of all line drawers.
Both the LSGs and each line card in the LSGs are numbered. The LSG
numbers in a Star Hub range from LSG-00 through LSG-35. Line card
numbers range from 00 through 31. Using these numbers, the line cards are
uniquely identified and inventoried in the DMS switch central control (CC) by
their line equipment numbers (LEN), as shown in the following table.
Table 2-6 Parts of LEN for a Star Hub
Part
Site
Frame
Unit
LSG
Circuit
The following example shows how line cards are numbered for identification
within any LSG.
Table 2-7 Example LENs for line cards
Site
REM1
REM2
HOST
297-8353-550 Standard 05.01 March 2001
performs digital loop around on command from the maintenance system
supports communication between the line drawers or between two LSGs.
This communication is accomplished through the single BIC in each
drawer.
Description
Four character alphanumeric name that identifies the remote site
where the Star Hub is located.
Numeric (00-511) that identifies the SRHE frame containing the line
card.
For the Star Hub, this is always 0.
Numeric (00-35) that identifies the line subgroup that contains the
line card.
Numeric (00-31) that identifies the position of the line card in the
LSG.
Frame
00
00
01
Unit LSG
0 07
0 18
0 14
Circuit
30
26
6