Samsung NX-828 User manual

For the following named product :
KEY TELEPHONE SYSTEM, NX-828
We hereby declare, that all major safety requirements, concerning to
Electro-Magnetic Compatibility (89/336/EEC) are fulfilled, as laid out
in the guidelines set down by the number states of the EEC commission.
This declaration is valid for all samples that are part of this
declaration, which are manufactured according to the production chart appendix.
This standards relevant for the evaluation of Electro-Magnetic Compatibility
requirements are as follows ;
EN55022 (1987 LIMIT CLASS B)
Radiated Emission :30 MHz ~1GHz
Conducted emission :150 MHz ~30 MHz
EN60555 (1992 LIMIT CLASS B)
Power Harmonics :2nd ~40th Harmonics
EN50082-1 (1992)
Radiated Susceptibility :27 MHz ~500 MHz (3V/m)
ESD :Air Discharge 8KV
EFT/BURST :AC Power Lines (1000V /5KHz)
I/O Lines (500V /5KHz)
IEC950(1991) Second Edition with Amendment 1(1992) and 2(1993) ;
EN60 950(1991) with Amdts. 1&2:EN41 003 and National Deviations
EC DECLATATION OF CONFORMITY

PUBLICATION INFORMATION
SAMSUNG ELECTRONICS Co.
reserves the right to revise information in this
publication for any reason without prior notice.
SAMSUNG ELECTRONICS Co.
also reserves the right to make changes in equipment
design or components as engineering and manufacturing
may warrant without prior notice .
COPYRIGHT
¨Ï
1998 SAMSUNG ELECTRONICS Co.
All rights reserved. No part of this manual may be reproduced
in any form or by any means --- graphic, electronic or
mechanical, including recording, taping, photocopying or
information retrieval systems --- without express written
permission of the publisher of this material.

NX-828
ELECTRONIC KEY/HYBRID
TELEPHONE SYSTEM
TECHNICALMANUAL
INCLUDES :
GENERALDESCRIPTIONSECTION
INSTALLATIONSECTION
FEATURESECTION
PROGRAMMINGSECTION
APPENDIXSECTION
BACK-UPDATASHEETS
Every effort has been made to eliminate errors and ambiguities in the information contained
in this manual. Any questions concerning information presented here should be directed
to SAMSUNG ELECTRONICS Co., 9th Fl. Joong-Ang Daily News Bldg. 7, Soonwha-Dong,
Chung-ku, Seoul, Korea C.P.O. Box:2775, Tel: [phone]. SAMSUNG ELECTRONICS
Co. disclaims all liabilities for damages arising from the erroneous interpretation or use of
information presented in this manual.

NX-828 GeneralSystemDiagram.................... 1-1
1.SystemOverview.............................................. 1-2
2.SystemConfiguration ........................................ 1-2
3.HardwareDescription ....................................... 1-3
3.1KeyServiceUnit(KSU)................................... 1-3
3.2Option Cards................................................. 1-3
3.3Station Equipment ........................................... 1-4
4.Specifications................................................... 1-5
4.1ElectricalSpecifications.................................. 1-5
4.2Dimensionsand Weights................................. 1-5
4.3EnvironmentalLimitations................................ 1-5
4.4CableRequirements....................................... 1-5
4.5SystemTonesand Rings................................ 1-6
4.6KeysetLEDIndications................................... 1-7
TABLEOFCONTENTS
GENERAL DESCRIPTION
NX-828 HYBRID KEY SYSTEM GENERAL DESCRIPTION

NX-828 HYBRID KEY SYSTEM GENERAL DESCRIPTION
1-1
NX-828 GeneralSystemDiagram
COMPUTER
MODEM
EXTERNALMUSIC
SOURCE
EXTERNAL
PAGE
SMDR
PRINTER
DOOR
PHONE
KEYSETAUTO
ATTENDANT
FACSIMILE
STANDARD
PHONE(SLT)
MDF
TRUNK
LINES
PCMMC
AOM
(Add-On-Module)
PSTN
MODEMMODEM
COMPUTER

1.SystemOverview
The NX-828 system is an analogue telephone system designed for small to medium-sized
businesses and for meeting CE (EMC +safety) regulations as well as the related PTT
regulations. The system has amaximum capacity of forty (40) ports, being the sum of telephone
lines and stations-the combinations of which are flexible. Comprising only aKey Service Unit
(KSU), option cards, electronic keysets and conventional single line telephones, the system
offers small or medium-sized business user's the flexibility and control of telephone
communications. Apowerful HM64180R1 microprocessor digitally controls all speech paths and
system functions. The operating program with default memory is stored in non-volatile ROM 27C
020. Customer data is stored in RAM 681000 and is protected by arechargeable Ni-Cd battery
for up to seven day's continuous loss of system power.
2.SystemConfiguration
The basic KSU comes equipped to operate four (4) telephone lines and twelve (12) stations.
Stations from #1 to #4 are assigned to keysets, and stations from #5 to #12 are assigned to
single line telephones. The NX-828 system has several types of option card: the NX-4TRK, NX-
8KLI, NX-8SLI and NX-4OPX card can be installed in any slot of the three expansion slots. By
combining these cards, the system can be increased to its maximum capacity of forty (40) ports.
Optionally, the NX-SMDR/R-MMC and NX-DPH/PAGING cards can be installed on the base
board for value-added features.
The NX-SMDR/R-MMC card is the serial interface card for SMDR and Remote MMC, and the
NX-DPH/PAGING card is the door phone and external paging interface card. The NX-MPD
Hybrid IC (50Hz, 12 or 16KHz) can be installed on the base board and the NX-4TRK option card
for four (4) trunk ports up to amaximum of four per card. The chart below describes
configurations using option cards.
NX-828 HYBRID KEY SYSTEM GENERAL DESCRIPTION
1-2
BaseBoard
BaseBoard and 1 expansion slot
BaseBoard and 2 expansion slots
BaseBoard and 3 expansion slots
12 20 28 36
No.ofStations
16
12
8
4

You may connect up to 24 keystations to the system. More than 24 KLI connections may cause
problems with system features.
3.HardwareDescription
3.1KeyService Unit (KSU)
The NX-828 system is asingle cabinet, wall mounted, metal-cased unit containing the
following:
¡Ü
PowerSupply
¡Þ System main DC regulator from AC 230V, 50Hz
¡Þ Sinusoidal ring signal generator
¡Þ Battery charging/ Re-charging circuitry
¡Þ DC power regulator for single line telephones
¡Þ +12V DC power regulator and -5V DC power regulator
¡Ü
Connection Board
.
¡Ü
Base Board
-Four (4) loop start trunk line interface circuitry with Metering Pulse Detectors
(optionally, 50Hz, 12kHz or 16kHz)
-Four (4) keyset interfaces and eight (8) single line telephone interfaces
-16 speech paths
-Internal music source and external music interface
-Two (2) power failure transfers (trunk #1, #2 -station #11, #12)
-Memory back-up battery
-Real-time clock
-Four (4) connectors for Metering Pulse Detectors related to four (4) trunks
-Connector for NX-DPH/PAGING card and NX-SMDR/R-MMC card
-Three (3) expansion slots
-+5V DC power regulator
3.2Option Cards
¡Ü NX-4TRK card provides four (4) loop start trunk interfaces, with Metering pulse Detectors
(optionally, 50Hz, 12KHz or 16KHz).
¡Ü NX-8KLIcard provides eight (8) ports for keysets.
¡Ü NX-8SLIcard provides eight (8) single line telephones indoors.
¡Ü NX-4OPX card provides four (4) line telephones outdoors.
¡Ü NX-SMDR/R-MMCcard provides two serial ports for SMDR and Remote MMC.
¡Ü NX-DPH/PAGINGcard provides two door phone interface and one external paging
interface.
1-3
NX-828 HYBRID KEY SYSTEM GENERAL DESCRIPTION

¡Ü MPD HybridICcan be installed on the system base board and NX-4TRK option card
(maximum of four per card) for detecting metering pulses.
Optionally, MPD Hybrid ICs for 50Hz, 12kHz or 16kHz can be provided.
¡Ü MDFSamsung Electronics Co. can provide several types if user order.
NX-828 has room enough to accommodate MDF's in the cabinet if user
install the MDF's provided by Samsung Electronics Co.
3.3Station Equipments
¡Ü Keysetwith24 buttons(NX-24E,NX-24B)
-Built-in speakerphone
-24 programmable soft keys (12 with tri-colored LEDs) and 10 fixed function keys
-UP/DOWN buttons for digital control of speaker, handset and ringer volumes.
-Four selective ring tones per keyset
-Desk-mounted or wall-mounted
-Can be connected to the SKP-308H/816H system
-NX-24E keyset has a1-line 16-character display.
¡Ü Basic keysetwith6buttons(NX-6B)
-6programmable soft keys and 10 fixed function keys
-UP/DOWN buttons for digital control of speaker, handset and ringer volumes.
-Four selective ring tones per keyset
-Desk-mounted or wall-mounted
-can be connected to SKP-308Hsystem
Keysets come in one colour: Dark Grey.
¡Ü Add-OnModule(NX-AOM)
-24 programmable soft keys
¡Ü Doorphone set (DPH)
-Can be connected to NX-DPH/PAGING card and uses a one (1) pair modular cable.
1-4
NX-828 HYBRID KEY SYSTEM GENERAL DESCRIPTION

4.Specifications
4.1ElectricalSpecifications
4.2Dimensions and Weights
4.3EnvironmentalLimitations
4.4CableRequirements
1-5
ELECTRONICSET2 pairtwisted,400 m24 AWGmaximum
SINGLELINE
TELEPHONE1 pairtwisted,1km24 AWGmaximum
DOORPHONE1 pairtwisted,100 m24 AWGmaximum
OPERATING
TEMPERATURES 0¡É -45 ¡É (18 ¡É -25 ¡É recommended)
OPERATING
HUMIDITY10 %-90 %(withoutcondensation)
OPERATING
INPUTVOLTAGE230 VAC(20%),48~62Hz
NX-828 HYBRID KEY SYSTEM GENERAL DESCRIPTION
KEYSERVICEUNIT530 mm H¡¿412 mm W¡¿140 mm ,8.9kg
KEYSET214 mm H¡¿206 mm W¡¿150 mm ,1.1kg
AOM214 mm H¡¿133 mm W¡¿150 mm ,0.4kg
DOORPHONE158 mm H¡¿ 89 mm W¡¿ 41 mm ,0.23 kg
ACINPUT230 VAC,50 Hz
POWER
CONSUMPTION55 Wattsmaximum
MAX CURRENT
DRAWAT230 VAC0.29 AMP
RING GENERATORAC80 VRMS,25 Hz
BATTERYBACKUP
SUPPLY24 VDC Batteriesratingnotless than6AH butnotmorethan26 AH

4.5SYSTEMTONES AND RINGS
1-6
NX-SERIES HYBRID KEY SYSTEM GENERAL DESCRIPTION
DIALTONE:Asteady tone that indicates you can begin dialing.
CONTINUOUS
RINGBACK TONE:Indicates the station you dialed is ringing.
1000 ON /2000 OFF /
1000 ON /2000 OFF
BUSYTONE:Indicates the station you dialed is busy.
500 ON /500 OFF /
500 ON /500 OFF
TRANSFERTONE:Indicates your call is being held and you can dial another
party.
200 ON /200 OFF /
200 ON /200 OFF
ERRORTONE:Indicates you have done something incorrectly.
500 ON /250 OFF /
500 ON /250 OFF
CONFIRMATION
TONE:Indicates you have correctly set or canceled the system
features.
100 ON /100 OFF /
100 ON /100 OFF
INTRUSIONTONE:Indicates you are barged.
200 ON /200 OFF /
200 ON /5000 OFF
MESSAGE
WAITINGTONE:In case of SLT, indicates you have messages left.
200 ON /200 OFF /
200 ON /200 OFF

4.6KeysetLEDIndications
CONDITIONLED COLORLEDSTATUS
LINE IDLE OFF OFF
LINE IN USE RED/GREEN STEADY ON
RECALL AMBER FAST FLICKER
CALL ON HOLD RED/GREEN SLOW FLICKER
RINGING C.O. CALL GREEN FAST FLICKER
RINGING INTERNAL
CALL RED FAST FLICKER
DND INDICATION RED STEADY ON
1-7
NX-SERIES HYBRID KEY SYSTEM GENERAL DESCRIPTION
COLINERING:Indicates aoutside call is ringing on your station.
1000 ON /3000 OFF /
1000 ON /3000 OFF
STATION RING:Indicates an intercom call is ringing on your station.
400 ON /200 OFF /
400 ON /3000 OFF
DOORPHONERING:Indicates adoor phone call is ringing on your station.
500 ON /500 OFF /
500 ON /500 OFF
ALARMRING:Indicates an alarm ring is ringing on your station.
500 ON /500 OFF /
500 ON /500 OFF

NX-SERIES HYBRID KEY SYSTEM GENERAL DESCRIPTION
1-8

INSTALLATION
TABLEOFCONTENTS
NX-828 HYBRID KEY SYSTEM INSTALLATION
1.SiteRequirements.................................................
2-1
2. Installation OfBasicKsu.......................................
2-1
2.1 Unpacking Basic KSU......................................
2.2 Mounting the KSU...........................................
2.3 Grounding the KSU..........................................
2.4 MDF Cabling...................................................
2-1
2-1
2-2
2-3
3. Installation Option Cards.......................................
2-11
3.1 3.1NX-4TRK...................................................
3.2 3.2 NX-4ODX...................................................
3.3 3.3 NX-8KLI.....................................................
3.4 3.4 NX-8SLI.....................................................
3.5 3.5 NX-SMDR/R-MMC.......................................
3.6 3.6 MPD Hybrid IC...........................................
3.7 3.7 NX-DPH/PAGING.........................................
3.8 Installing Expansion Cards on Base Board..........
2-11
2-11
2-11
2-11
2-11
2-11
2-11
2-14
4.Connecting TelephoneLines.................................
2-15
4.1 Safety Precaution.............................................
4.2 Loop Start Lines.............................................. 2-15
2-15
5.Connecting Station Equipment...............................
2-15
5.1 Connecting Keyset/AOM....................................
5.2 Connecting Single Line Telephone...................... 2-15
2-16
6.Connecting OptionalEquipment............................. 2-17
6-1 External Music Source........................................
6-2 Door Phone and Door Lock Release...................
6-3 External Paging..................................................
6-4 SMDR /Remote Programming.............................
6-5 Power Failure Transfer........................................
6-6 External Battery ................................................
2-17
2-18
2-20
2-20
2-23
2-23
7.BeforePowerUp....................................................
2-24

1.SiteRequirements
When planning the installation of the NX-828 system, choose asite that meets the following
requirements:
¡Ü Select alocation for the Key Service Unit (KSU) that has enough room for installation and
has adequate lighting.
¡Ü Select alocation that minimises cable lengths. Maximum cable length is 400 meters using
AWG #24 cable for akeyset and 1 km using AWG #24 cable for asingle line telephone.
¡Ü The equipment should not be exposed to direct sunlight, corrosive fumes, dust, constant
vibration or strong magnetic fields such as those generated by motors and copying machines.
¡Ü Adirect commercial AC power outlet is required. Do not use extension cords. Preferably,
adedicated circuit should be used to minimise the risk of other electrical equipment being
connected that could adversely affect system operation. Ensure that all wires and cables
going to and coming from the KSU are properly routed. Do not cross fluorescent lights or run
parallel with AC wires.
¡Ü The equipment must be located in an environment that will maintain atemperature range of
0-40¡ÆCand a humidity range of 10% -90% non-condensing.
¡Ü Do not install in close proximity to afire sprinkler head or other sources of water.
¡Ü Do not install within a2-mile radius of abroadcasting antenna.
2. Installation BasicKSU
2.1Unpacking basicKSU
After unpacking the KSU, inspect for signs of physical damage. If any damage is detected, do not
attempt to install.
Check to see that the KSU carton includes the following items:
-Key Service Unit
-Wall-mount bracket and three (3) screws
-Power cord
2.2Mounting theKSU
The KSU must be wall-mounted using the bracket supplied (Figure 2-1). The KSU should be
mounted on a plywood backboard at least 1.5 mm thick. Attach the bracket to backboard with the
two screws supplied. Next, hang the KSU on the mounting bracket
2-1
NX-828 HYBRID KEY SYSTEM INSTALLATION

2.3Grounding theKSU
The NX-828 system comes equipped ready to use with athird wire AC ground provided through
the power cord (Figure 2-2).
The grounding lug on the bottom of the KSU must be connected to aground rod or metal cold
water pipe using 10 AWG solid copper wire.
1. Fix the 3screws into the wall
2. Hang the KSU on the wall-mount bracket
Figure 2-1Mounting theKSU
Figure 2-2Grounding theKSU
NX-828 HYBRID KEY SYSTEM INSTALLATION
WARNING: Unplug the power cord from the AC supply before attempting
to onnect the ground. Hazardous voltage may cause death or injury.
Observe extreme caution when working with AC power.
CAUTION: Failure to provide an adequate ground may cause problems or even circuit
board failure.
2-2
THIS SIDE OF KSU
CONNECT TO EARTH GROUND

2.4MDFCabling
All connections to the NX-828 system are made by way of the main distribution frame (MDF)
provided by SAMSUNG. The MDF connection can be done by using a 25 pair female amphenol-
type cable. There are five(5) kinds of MDF(MDFB-CEU, MDFB-MEU, MDFD-C, MDFD-M4TRK
and MDFD-M) for NX system and OptionalMDF can be used with the NX-828 system.
MDFB-CEU and MDFB-MEU are for the basic KSU and the MDFD-C, MDFD-M and MDFD-M4TRK
are used to connect the expansion B'd.
¡Ü MDFB(Option B'd)
Used to connect the NX-828 basic KSU.
There are two types of MDFB ;
¢¹ MDFB-CEU (See FIGURE2
£-
3)
¢¹ MDFB-MEU (See FIGURE2
£-
4)
¡Ü MDFD(Option B'd)
Used to connect the expansion cards :
NX-4TRK, NX-4OPX, NX-8KLI, NX-8SLI
There are three types of MDFD ;
¢¹ MDFD-C (See FIGURE2
£-
5A,2
£-
5B)
¢¹ MDFD-M4TRK (See FIGURE2
£-
6)
¢¹ MDFD-M (See FIGURE2
£-
7)
¡Ü OptionalMDF(See FIGURE2-8)
The MDF provided by SAMSUNG ELECTRONICS is configured as FIGURE 2-8.
It is composed of sixty (60) pair clips of which "IN" and "OUT" terminal is short internally.
The wire from the NX-828 system champ connector is connected to the clip terminal
marked "IN" and the wire to C.O, station, or the additional feature equipment can be
connected from the clip terminal marked "OUT".
NX-828 HYBRID KEY SYSTEM INSTALLATION
2-3