1GENERAL 1999.9.15 12:46 PM 페이지10

NX-SERIESHYBRID KEY SYSTEM

GENERAL DESCRIPTION SECTION

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

NX-820 SYSTEM

4 Trunk interfaces

4 KTS and 8 SLT station interfaces

NX-1232 SYSTEM

8 Trunk interfaces

8 hybrid and 8 SLT station interfaces

4.2EXPANSION CARDS & OPTION BOARDS

NX-2TRKcard provides two loop start trunk interfaces.

can be installed NX-820and NX-1232system.

NX-4TRKcard provides four loop start trunk interfaces.

can be installed NX-820and NX-1232system.

NX-4KLIcard provides four ports for keysets.

can be installed NX-820and NX-1232system.

NX-4SLIcard provides four SLI ports for industry standard single line telephones.

can be installed NX-820and NX-1232system.

NX-4OPXcard provides four OPX line port for industry standard single line telephones and can be connected to PBX lines.

can be installed NX-820and NX-1232system.

NX-8KLIcard provides eight ports for keysets.

can be installed NX-820and NX-1232system.

NX-8SLIcard provides eight SLI port for industry standard single line telephones.

can be installed NX-820and NX-1232system.

NX-MPDboard provides two ports for metering pulse detection.

can be installed NX-820and NX-1232system.

NX-PRSboard provides two ports for polarity reverse signal detection.

can be installed NX-820and NX-1232system.

NX-SMDR/R-MMCboard provides two serial ports for SMDR and

REMOTE MMC.

can be installed all NX-SERIESsystem.

NX-DPH/PAGINGboard provides two DOOR PHONE interface and one EXTERNAL PAGING interface.

can be installed all NX-SERIESsystem.

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Samsung NX-308 technical manual Hardware Description, KSU Key Service Unit, Expansion Cards & Option Boards