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4. HARDWARE DESCRIPTION
4.1 KSU (Key Service Unit)
The KSU of the NX-series is a single cabinet, wall mounted, metal cased unit,
containing the following:
●
Power Supply
●
Processing, switching, and customer memory for all ports.
●
Internal music source and External music interface
●
2 Power Failure Transfer
●
Back-up Battery for memory protection
●
Real Time Clock (RTC)
NX-308 SYSTEM
NX-820 SYSTEM
NX-1232 SYSTEM
3 Trunk interfaces
4 Trunk interfaces
8 Trunk interfaces
1 keyset, 7 Hybrid
4 KTS and 8 SLT
8 hybrid and 8 SLT
station interfaces
station interfaces
station interfaces
4.2 EXPANSION CARDS & OPTION BOARDS
●
NX-2TRK card provides two loop start trunk interfaces.
▷
can be installed NX-820 and NX-1232 system.
●
NX-4TRK card provides four loop start trunk interfaces.
▷
can be installed NX-820 and NX-1232 system.
●
NX-4KLI card provides four ports for keysets.
▷
can be installed NX-820 and NX-1232 system.
●
NX-4SLI card provides four SLI ports for industry standard single line telephones.
▷
can be installed NX-820 and NX-1232 system.
●
NX-4OPX card provides four OPX line port for industry standard single line
telephones and can be connected to PBX lines.
▷
can be installed NX-820 and NX-1232 system.
●
NX-8KLI card provides eight ports for keysets.
▷
can be installed NX-820 and NX-1232 system.
●
NX-8SLI card provides eight SLI port for industry standard single line telephones.
▷
can be installed NX-820 and NX-1232 system.
●
NX-MPD board provides two ports for metering pulse detection.
▷
can be installed NX-820 and NX-1232 system.
●
NX-PRSboard provides two ports for polarity reverse signal detection.
▷
can be installed NX-820 and NX-1232 system.
●
NX-SMDR/R-MMC board provides two serial ports for SMDR and
REMOTE MMC.
▷
can be installed all NX-SERIES system.
●
NX-DPH/PAGING board provides two DOOR PHONE interface and one
EXTERNAL PAGING interface.
▷
can be installed all NX-SERIES system.
NX-SERIES
HYBRID KEY SYSTEM
GENERAL DESCRIPTION SECTION
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1G E NE R A L 1999.9.15 12:46 PM 페이지10
