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2008M NSL (NON-SUBSCRIBER LINE) UNITS
The 2008M NSL Unit includes a cabinet for mounting into an electrical/telephone room. In this cabinet there is the Main NSL Controller Board
and one NSL Backplane. Up to eight 2012 NSL Relay Boards may be installed on the NSL backplane, allowing for 96 Residents in this
enclosure. The 2008 NSL 8 Relay Backplane or 2016 NSL 16 Relay Backplane Expanders, each in their own cabinet, may be added
(interconnected with two cables) providing additional capacity for 8 or 16 more Relay Boards each (1 or 2 additional Backplane Boards). A total
of 16 Backplanes may be installed, allowing for up to 1536 Residents. The 2008M and any 2008’s and/or 2016’s must all be adjacent to each
other, mounted on the same wall and in the same room.
The 2008M NSL Unit (and any 2008/16 NSL Relay Backplane Expanders) performs the following functions ...
Switching, involving the telephone lines, Resident lines and the 2001 Lobby Unit(s).
Generates call waiting tones to the Resident.
Provides a speech path to the 2001 Lobby Unit(s).
As previously described, up to 5 speech paths may be defined, so that any individual 2001 Lobby
Unit may communicate with multiple 2008M NSL Units.
RS-485 Interface to network to other Units.
Low Power operation from two 24V transformers.
See the NSL & Elevator Unit Enclosure section for mechanical and mounting information.
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