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3. SYSTEM CONFIGURATION
3.1 NX-308 SYSTEM
The basic KSU (Key Service Unit) comes equipped to operate three telephone
lines and eight stations. Station #1 is assigned to be used with a keyset and
stations #2 through #8 are assigned as keysets or single-line telephones.
The NX-SMDR/R-MMC board is the SMDR and REMOTE MMC serial interface,
and the NX-DPH/PAGING board is the door phone and external paging interface.
These optional boards can be installed on the base board
3.2 NX-820 SYSTEM
The basic KSU (Key Service Unit) comes equipped to operate four telephone lines
and twelve stations. Stations #1 through #4 are assigned to be used with keysets and
stations #5 through #12 are assigned for single-line telephones. The NX-820 system
accomodates several kinds of expansion card. The NX-2TRK, NX-4TRK, NX-4KLI,
NX-4SLI, NX-4OPX, NX-8KLI and N X - 8 S L I cards may be installed in any of the three
expansion slots. By combining these cards, the N X - 8 2 0 system can be increased to
its maximum capacity of forty ports. Optionally, the N X - S M D R / R - M M C , N X -
DPH/PAGING, NX-MPD and NX-PRS board can be installed on the base board.
The NX-SMDR/R-MMC board is the SMDR and REMOTE MMC serial interface,
the NX-DPH/PAGING board is the door phone and external paging interface and
the NX-MPD, NX-PRS board are interface for calculating call cost.
But, maximum keyphone part is restricted to twenty four(24) ports although three
NX-8KLI cards are used.
Basic KSU
Basic KSU, one 8 SLI (or 8 KLI) Board and one 4 TRK Card
Basic KSU, one 8 SLI (or 8 KLI) Board and two 4 TRK Cards
Basic KSU and three 4 TRK Cards
Basic KSU, two 8 SLI (or 8 KLI) Boards and one 4 TRK Cards
Basic KSU and three 8 SLI (or 8 KLI) Cards
NX-SERIES HYBRID KEY SYSTEM GENERAL DESCRIPTION SECTION
4 8 12 20 28 36
16
12
8
4
No. of Stations
1 - 4