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17

Connecting Keysets

Four wires (two pair) twisted cable with a double-sided modular plug and a terminal block are
recommended for a keyset connection to the KSU. One end of the terminal block is connected to the
MDF via a 50-pin cable, and the other end of the terminal block is connected to a keyset via a double-
sided modular plug line (two pair).

Cabling terminal block

LJU

Pin 1

reserved

Pin 2

Data +

Pin 3

Voice (Ring)

Pin 4

Voice (Tip)

Pin 5

Data -

Pin 6

reserved

The voice pair has no polarity. However, take care when connecting the data pair because of
its polarity. Make sure that the cable run length

does not exceed 400 metres

using 24 AWG

wire.

All station cabling must be twisted pair.

Refer to the Amphenol connection table in Figure 3.

Connecting to hybrid station port

The system is equipped with six hybrid station ports which can accommodate keysets or single line
telephones. Each port should be selected for use as a keyset or single line telephone. Any of these
ports may be used for a keyset station and its connection method is the same as above.

Before cabling, the related DIP switches should be set as follows:

The selection of each hybrid station requires you to move four levers at one DIP switch.

3rd Station

S1

DIP

4th Station

S2

DIP

5th Station

S3

DIP

6th Station

S4

DIP

7th Station

S5

DIP

8th Station

S6

DIP

Each DIP switch comprises four levers which should be set to

“

K

”

positions for keyset

assignment. These are marked on the board.

Connecting Single Line Telephones

A single or two-pair twisted cable with a double-sided modular plug and a terminal block are
recommended for connecting a single line telephone to the KSU. One end of the terminal block is
connected to the MDF via a 50-pin cable and the other end is connected to the single line telephone via
the twisted modular cable.

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Summary of Contents for NX-308

Page 1: ... ...

Page 2: ...r notice to make changes in design or components of equipment as engineering and manufacturing may warrant Copyright 1998 Samsung Telecoms 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 photocopy or information retrieval system without express written permission of the publisher of this material N...

Page 3: ...nnections 20 External system paging connections 20 Connecting door phone and lock control 20 Connecting PSTN lines 21 Power Failure Transfer 21 AC power connection 22 Connecting system back up battery 22 Memory protection 22 Installing surge protection equipment 23 Before power on 23 Figures Figure 1 KSU Layout 13 Figure 2 KSU Dimensions 15 Figure 3 KSU Connection Table 16 Figure 4 Base Board Swit...

Page 4: ...2 This page is intentionally blank ...

Page 5: ...Instroduction ...

Page 6: ...4 This page is intentionally blank ...

Page 7: ...5 GENERAL DESCRIPTION ...

Page 8: ... features itself making for easy convenient installation and maintenance The KSU is equipped to operate three 3 telephone lines and eight 8 stations Stations from 1 to 2 are assigned for electronic keysets stations from 3 to 8 are assigned to be used with either single line telephones or keysets NX 308 is a fully non blocking system Circuit Type Location Number Electronic Keyset Station 1 to 8 Sin...

Page 9: ...hone sets The NX 308 24 Button Display keyset has the following standard features plus a large easy to read one line 16 character liquid crystal display Standard Features Full speakerphone capability Keyset comes as a desk model with reversible base wedge and handset clip for wall mounting at no extra cost Handset and base cord connectors are designed with strain relief channels for longer cord li...

Page 10: ...ly hearing aid compatible Conventional Telephones Any industry approved single line telephone using one pair two wire tip and ring circuitry may be connected to a single line station port in the system The ringer equivalency of any such phone must not exceed 1 or damage to the system may result ...

Page 11: ...MP Ring Generator 80 VRMS 20 Hz Battery Back up Supply 24 VDC batteries rating not less than 6 AH but not more than 40 AH Environmental Limits Operating Temperatures 0o 45o C 18o 25o C recommended Operating Humidity 10 90 without condensation Cable Requirements Electronic Set 2 pair twisted 400m 24AWG maximum Single Line Telephone 1 pair twisted 400m 24AWG maximum Door Phone 2 pair twisted 100m 24...

Page 12: ...alling Busy Tone Status Dial tone Continuous Busy tone 0 5 sec On 0 5 sec OFF Ring back tone 1 sec ON 2 sec OFF Transfer tone 0 2 sec ON 0 2 sec OFF conference tone confirmation Not used tone 0 5 sec ON 2 5 sec OFF When the seized trunk line is not real Confirm tone 2 sec ON once When a call reservation is made Burst tone 0 2 sec ON 0 2 sec OFF three times keyset only keyset ring In Diagnostic a b...

Page 13: ...11 INSTALLATION ...

Page 14: ...ires and cables going to and coming from the KSU are properly routed Do not cross fluorescent lights or run parallel with AC wires The equipment must be located within a temperature range of 0o 45o C and a humidity range of 10 90 without condensation Do not install equipment within a 2 mile radius of a broadcasting antenna Electrical Specifications Input Commercial AC POWER source 220V AC 50 60 Hz...

Page 15: ...13 Figure 1 KSU Layout ...

Page 16: ...h ground to the KSU frame maximum 50 ohms Failure to provide an adequate ground may cause confusing trouble symptoms or even circuit board failure In most cases the third wire ground at the AC power outlet will be satisfactory If you are not sure of a good solid ground on third prong of outlet connect the grounding lug on KSU to a ground rod or metal cold water pipe using 10 AWG solid copper wire ...

Page 17: ...15 Figure 2 KSU Dimensions mm ...

Page 18: ...olarity 36 11 37 12 BK BL BK OR 4 3 5 2 Station 3 Tip Ring Data Data No polarity Polarity 38 13 39 14 BK GR BK BR 4 3 5 2 Station 4 Tip Ring Data Data No polarity Polarity 40 15 41 16 BK SL YL BL 4 3 5 2 Station 5 Tip Ring Data Data No polarity Polarity 42 17 43 18 YL OR YL GR 4 3 5 2 Station 6 Tip Ring Data Data No polarity Polarity 44 19 45 20 YL BR YL SL 4 3 5 2 Station 7 Tip Ring Data Data No ...

Page 19: ...six hybrid station ports which can accommodate keysets or single line telephones Each port should be selected for use as a keyset or single line telephone Any of these ports may be used for a keyset station and its connection method is the same as above Before cabling the related DIP switches should be set as follows The selection of each hybrid station requires you to move four levers at one DIP ...

Page 20: ...18 Figure 4 Base Board Switch Locations Cabling terminal block LJU Pin 1 reserved Pin 2 Tip or Ring Pin 3 ...

Page 21: ... telephone assignment These are marked on the board The switch location is shown in Figure 4 Internal Music Source NX 308 system is equipped with a melody chip containing six melodies which run continuously La Reine Deo Saba For Elise Santa Lucia Maiden Pray Music Box Dancer Moonlight on the Colorado The system has two music sources which may be selected by the related shunt pin J37 on the base bo...

Page 22: ...of the external page circuit is fixed Volume adjustments must be made at the customer s amplifier This external speaker and amplifier may be installed at the system for use by all users External individual paging is different from this speaker external individual paging is set up on a keyset basis and can be installed at each keyset Connecting Door Phone and Lock Control NX 308 system users can co...

Page 23: ... 5 Note that the cable for trunk lines C O or PBX lines should be isolated from the cables for the stations preventing signal interference and surge inducement Power Failure Transfer NX 308 system transfers two C O lines to the related single line telephones automatically during AC power failure The first trunk line and the second trunk line are transferred to the 7th station and 8th station respe...

Page 24: ...six keysets fully operational for approximately six hours WARNING Take extreme caution when connecting live batteries to avoid personal injury or damage to the system Memory Protection NX 308 system is equipped with a memory back up battery that prevents loss of the customer database stored in RAM during a power failure The 3 6 V DC Ni Cd battery is connected through switch J38 in the top righthan...

Page 25: ...is settled in a valid range AC power selection switch is correctly set according to the installation site or AC outlet All selection switches are correctly set in particular memory back up switch J38 is set to ON AC power switch is OFF Plug the power cord into the AC power outlet and switch the system AC power switch to ON Ensure that the system works correctly Otherwise contact your installer ...

Page 26: ...24 This page is intentionally blank ...

Page 27: ...25 SYSTEM PROGRAMMING Levels of Programming ...

Page 28: ...d in the NX 308 Keyset User Guide Features operate when the system is turned on because they are factory programmed with default data You may use the features as factory programmed default or change them Programming should be done using the following procedures while on hook 1 The system must first be set into program enable mode Enter 20 Password 0 1 where 0 Programmable Disable 1 Programmable En...

Page 29: ...e in status override 40 Dial 80 group 41 C O line incoming outgoing assignment 42 C O line pulse tone selection 44 C O or PBX line selection 45 External call forwarding 46 Private or non private lines 47 Dial 9 group 49 Forward C O lines 50 C O flash timing 51 PBX flash timing 52 Hold camp on recall time 53 Transfer ring time 54 Alarm time duration 55 Date and time 57 C O to C O duration timer 59 ...

Page 30: ... is displayed 3 Dial four digit password then dial 0 Disable programming 1 Enable programming 4 Press key Default password is 4321 Note Programming mode will automatically time out after a short period of time following the last key sequence 05 Change User Password Changes the password for enabling user programming 1 Press key 2 Dial 05 OLD PASSWORD is displayed 3 Enter old password Display change...

Page 31: ... 1234 If wrong password is entered display shows ERROR and program mode is not entered 4 Dial 1 to enter program mode or make another selection as follows 0 System program disable 1 System program enable 4 12 hour clock 5 24 hour clock 5 Press key Note The system automatically leaves programming mode if no data is entered within four minutes 21 Change Technician Password Does not require MMC enabl...

Page 32: ...N is displayed 3 Enter password Display shows KSU version and KTS version 4 Press key 25 System Initialisation Does not require MMC enabled Allows you to initialise the system without turning system power on and off 1 Press key PROGRAMMING is displayed 2 Dial 25 INITIAL SYS is displayed 3 Enter password 4 Enter one of three digits 0 No initialisation 1 Initialisation of scratch pad data in RAM 2 I...

Page 33: ...ts each of which indicates the class of service of each station 0 Class A No Restriction 1 Class B Follows allow deny table for class B programs 33 34 Deny table has a priority over allow table 2 Class C Follows another allow deny table for class C programs 35 36 3 Class D Follows allow table for class D program 37 4 Class E Intercom call only 3 Enter all eight digits to set class of service for e...

Page 34: ...LS followed by eight digits indicating allow or deny status for each station 3 Enter 0 or 1 for all eight stations 0 Deny 1 Allow 4 Press key Default 1 allow for all stations 33 Deny Codes for Class of Service B Defines what leading digits in a dialling plan are to be restricted There are 10 line entries 0 9 which define up to 12 digits per entry 1 Press key PROGRAMMING is displayed 2 Dial 33 Disp...

Page 35: ...in a dialling plan are to be restricted There are 10 line entries 0 9 which define up to 12 digits per entry 1 Press key PROGRAMMING is displayed 2 Dial 35 Display shows DENY IN CLASS C 3 Enter 0 to 9 to select line entry CD x is displayed where x is line entry 0 9 4 Enter up to 12 digits to be toll restricted 5 Press key Press HOLD key to clear entry and enter new data 36 Allow Codes for Class of...

Page 36: ...class E cannot make outside calls these require no additional programming However classes B C and D must be assigned in other programs the digits they are allowed or restricted from dialling Classes B and C have a deny list assigned to each Class D is intended for stations with limited outside calling requirements and which therefore can only dial what is in their allow list Each of these allow or...

Page 37: ...dividual stations the ability to barge in on override an existing conversation Note that a level 3 or 2 cannot barge in on a level 2 or 0 if the station they are talking to is a level 3 or 1 1 Press key PROGRAMMING is displayed 2 Dial 39 Display shows ASSIGN BARGE IN followed by the current data for all eight stations 3 Enter 0 1 2 or 3 for all stations 3 You can barge in nobody can barge in on yo...

Page 38: ...current status of each line 3 Enter 0 or 1 0 Incoming Outgoing 1 Incoming only 4 Press key Default 000 42 C O Line Pulse Tone Selection Defines which C O lines are to be assigned as Tone or Pulse Dialling 1 Press key PROGRAMMING is displayed 2 Dial 42 Display shows TRUNK DIAL TYPE followed by three digits each of which indicates current status of each line 3 Enter 0 or 1 for all three C O lines 0 ...

Page 39: ... allow for each incoming C O line to be forwarded 4 Press key Default 000 Note See program 59 46 Private or Non Private Lines Assigns each C O line for private or non private use Lines set for non private use work like 1A2 operation Maximum of three additional parties may access line already in use 1 Press key PROGRAMMING is displayed 2 Dial 46 Display shows PRIVACY or NONE and then PRIVACY 0 NONE...

Page 40: ...s momentarily displayed followed by three digits representing the current status of each C O line 3 Enter the new data for all three lines 0 Will not follow station call forward 1 Will follow station call forward 4 Press key Default 000 50 C O Flash Timing Defines the length of a flash on the C O line 1 Press key PROGRAMMING is displayed 2 Dial 50 C O FLASH TIME is displayed then xxxx MSEC is disp...

Page 41: ...ey The recall time ranges from 0 s to 200 s A value of 200 s indicates that the timer setting is indefinite i e timer does not expire Default is 30 s Note If the telephone is off hook during the recall mode the telephone will ring as soon as the telephone goes on hook 53 Transfer Ring Time Defines the length of time that a transferred call will ring at a station before it recalls the original stat...

Page 42: ...s displayed 2 Dial 55 Display shows YY MM DD W HH MM and then current data is displayed 3 Enter new data successively YY Last 2 digits of year MM Month of year 01 12 DD Day 01 31 W Weekday 1 Monday 2 Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday 7 Sunday HH Hour 24 hour clock MM Minutes 00 60 4 Press key Note If 12 hour clock is desired program time in 24 hour clock military time in this prog...

Page 43: ...ow the customer time to answer the line before it is externally forwarded 1 Press key PROGRAMMING is displayed 2 Dial 59 EXT DLY TIME is displayed momentarily then the current timer value xxx SEC 3 Enter three digits of new delay time in range 0 to 200 seconds A value of 200 s indicates that the timer setting is indefinite i e timer does not expire 4 Press key Default 30 s 60 C O Line Ring Mode As...

Page 44: ... ring on a per line basis when the system is in night mode 1 Press key PROGRAMMING is displayed 2 Dial 61 Display shows NITE RING ASSIGN 3 Press the C O line button to be programmed for night ring mode C O line number and previously assigned station numbers are displayed 4 Press the DSS key of each station that is to ring in night mode 5 Press key A C O line may have a maximum eight stations assig...

Page 45: ... new data as two digits 00 A single ring tone at the beginning of a camp on 10 99 Duration of time between tones 4 Press key Default 00 Note Setting this value higher than Hold Camp on Recall timer 52 will cause only a single ring tone 70 Attendant Assignment Defines which station is to act as the Operator s station 1 Press key PROGRAMMING is displayed 2 Dial 70 Display shows the current attendant...

Page 46: ...GRAMMING is displayed 2 Dial 74 Display shows HEADSET CHECK and then HEADSET 1 NONE 0 followed by current data for all eight stations 3 Enter 0 or 1 for all stations 4 Press key Default 00000000 LCR Programming Technician Forced LCR If LCR is enabled on any line and the user presses the line key rather than dialling 9 the system still forces the user to use LCR MMC900 LCR Enable Used to enable LCR...

Page 47: ...utgoing call placement This table works in conjunction with LCR Route Table and LCR Modify Digits Table There is a maximum of 250 entries with a digit string length of 10 numerical digits This system will automatically maintain entered digit strings in numerical order By default the system routes dialled digits not entered in LCR Digit Table to route 01 i e 132 Mercury easy access Action Display 1...

Page 48: ...te Number If more than one group is available for call completion the system will use the first designated trunk group and then start to use succeeding trunk groups If all trunk groups are busy in a selected route call queue will become active and allocate trunks as they become available Action Display 1 Press CONF key and 902 2 Dial route number OR Press MSG key to select index 0 15 3 Press ALM k...

Page 49: ... Display 1 Press CONF key and 903 2 Enter index number 00 00 OR Press MSG key to make selection 3 Enter number of digits to delete 00 10 4 Press ALM key to input insert digit 5 Enter digits to be inserted up to 10 digits 6 Press ALM key to input append digit up to 10 digits 7 Enter digits to be appended up to 10 digits 8 If you want to continue press MSG key and go to step 2 9 Press CONF key to st...

Page 50: ...rvice Action Display 1 Press CONF key and 905 2 Press MSG key to select station 3 Enter the pin code serial number 0 3 4 Press MSG key to continue 5 Press CONF key to store and exit If you want to delete any item press HOLD key in any state Default data 0 Related items MMC909 PIN Code MMC906 LCR Inter Digit Time This timer is used by LCR to determine when a station user has dialled the last digit ...

Page 51: ...d as a default secondary network Mercury 132 Access If dialled digits are not matched to the entry in LCR Digit Table MMC 901 and start with 0 the network code in the second entry will be dialled out by the system prior to transmitting dialled digits Action Display 1 Press CONF key and 908 2 Press MSG key to make selection 00 15 3 Enter the desired access via dial keypad up to 10 digits 4 Press CO...

Page 52: ...emise calls on a cost centre basis If this facility is activated the call cost centre code needs to be entered immediately following transmission of the authorisation code Action Display 1 Press CONF key and 910 2 Press MSG key 3 Enter call cost code up to three digits 4 Press CONF key to store and exit MMC911 Dial Start Time Used to provide a delay before dialling to C O line Action Display 1 Pre...

Page 53: ...e selection 37 45 External call forwarding 37 46 Private or non private lines 38 47 Dial 9 group 38 49 Forward C O lines 38 50 C O flash timing 39 51 PBX flash timing 39 52 Hold camp on recall time 39 53 Transfer ring time 40 54 Alarm time duration 40 55 Date and time 40 57 C O to C O duration timer 41 59 External call forward timer 41 60 C O line ring mode 42 61 Night ringing assignment 42 62 Day...

Page 54: ... ...

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