Nortel DMS-100 Series Maintenance Manual page 36

1-20 Maintenance overview
Host interface equipment shelf layout
Slot Abbreviation
22–24
25–27
Note 1: When ESA is not provisioned, these card slots have filler panels (NT0X50AA). When
selected, the ESA package has two possible configurations. Refer to sections "ESA hardware" and
"ESA control complex" in this document.
Note 2: If additional DS-1 links are required to total six DS-1 links, NT6X50 replaces the filler panel
in slot 21.
Link control cards
The two LCC cards (NT6X73) fill slots 17 and 18 of the HIE. Each LCC
provides an interface between eight DS30A ports from an OPAC LCA shelf
and DS-1 links to the host office. The LCCs provide an interface between
the ESA processor, if provisioned, and the LCM.
The following figure shows how the DS-1 links terminate on the LCC and in
the LCA.
297-8211-550 Standard 05.01 August 1999
(continued)
NT PEC Remarks
2X70 Power converter
2X70 Power converter
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