Hardware Description; Expansion Cards And Option Boards; Ksu (Key Service Unit) - Samsung NX-308 Technical Manual

1GENERAL 1999.9.15 12:46 PM 페이지10
NX-SERIES
HYBRID KEY SYSTEM

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
3 Trunk interfaces
1 keyset, 7 Hybrid
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
▷
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-PRS board 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
▷ can be installed all NX-SERIES system.
● NX-DPH/PAGING board provides two DOOR PHONE interface and one
▷
can be installed all NX-SERIES system.
NX-820 SYSTEM
4 Trunk interfaces
4 KTS and 8 SLT
station interfaces
telephones and can be connected to PBX lines.
REMOTE MMC.
EXTERNAL PAGING interface.
1 - 6
GENERAL DESCRIPTION SECTION
NX-1232 SYSTEM
8 Trunk interfaces
8 hybrid and 8 SLT
station interfaces