SAMSUNG DCS-408, DCS-408i User Manual

DCS-408 / 408i

Installation
Manual

Publication Information

Samsung Business Communications reserves the right without prior notice to revise infor­mation in this publication for any reason.

Samsung Business Communications also reserves the right without prior notice to make
changes in design or components of equipment as engineering and manufacturing may
warrant.

Disclaimer

Samsung Business Communications is not responsible for errors or problems arising from
customers not installing, programming or operating their Samsung systems as described
in this manual.

Copyright 2004

Samsung Business Communications

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.

Part No.: 17260 Version 2.1

EU Declaration of Conformity (RTTE)

Samsung Electronics Co., Ltd.

259 Gongdan-Dong, Gumi-City Kyungbuk, Korea, 730-030

(factory name, address)

declare under our sole responsibility that the product

Digital Keyphone System "DCS-408"

to which this declaration relates is in conformity with

RTTE Directive 1999/5/EC ( Annex II )
Low Voltage Directive 73/23/EEC:93/68/EEC
EMC Directive 89/336/EEC:92/31/EEC

By application of the following standards

EN55022 : 1998 Inc A1: 2000* , EN55024 : 1998 +A1:2001

EN61000-3-2:1995 Inc. A1/A2:1998

EN61000-3-3:1995, EN61000-4-2:1995 Inc. A1:1998, EN61000-4-3:1996 Inc. A1:1998

EN61000-4-4:1995, EN61000-4-5:1995, EN61000-4-6:1996, EN61000-4-8:1993

EN61000-4-11:1994, AS/NZS3548:1995

EN60950 ; 1992+A1+A2+A3+A4+A11

(Manufacturer)

Samsung Electronics Co., Ltd
259, Gongdan-Dong, Gumi-City
Kyungbuk, Korea, 730-030

2000-12-08

................................................. .................................................................................

(place and date of issue) (name and signature of authorized person)

(Representative in the EU)

Samsung Electronics Euro QA Lab.
Blackbushe Business Park
Saxony Way, Yateley, Hampshire

GU46 6GG, UK

TE Jang

Tae-eok Jang / General Manager

2000-12-08

................................................. ...............................................................................

(place and date of issue) (name and signature of authorized person)

IS Lee

In-Seop Lee / Manager

EU Declaration of Conformity (RTTE)

Samsung Electronics Co., Ltd.

259 Gongdan-Dong, Gumi-City Kyungbuk, Korea, 730-030

(factory name, address)

declare under our sole responsibility that the product

Digital Keyphone System "DCS- 408i"

to which this declaration relates is in conformity with

RTTE Directive 1999/5/EC ( Annex II )
Low Voltage Directive 73/23/EEC:93/68/EEC
EMC Directive 89/336/EEC:92/31/EEC

By application of the following standards

EN55022 : 1998 Inc A1: 2000* , EN55024 : 1998 +A1:2001

EN61000-3-2:1995 Inc. A1/A2:1998

EN61000-3-3:1995, EN61000-4-2:1995 Inc. A1:1998, EN61000-4-3:1996 Inc. A1:1998

EN61000-4-4:1995, EN61000-4-5:1995, EN61000-4-6:1996, EN61000-4-8:1993

EN61000-4-11:1994, AS/NZS3548:1995

EN60950 ; 1992+A1+A2+A3+A4+A11

(Manufacturer)

Samsung Electronics Co., Ltd
259, Gongdan-Dong, Gumi-City
Kyungbuk, Korea, 730-030

2001-06-07

................................................. .................................................................................

(place and date of issue) (name and signature of authorized person)

(Representative in the EU)

Samsung Electronics Euro QA Lab.
Blackbushe Business Park
Saxony Way, Yateley, Hampshire

GU46 6GG, UK

TE Jang

Tae-eok Jang / General Manager

2001-06-11

................................................. ...............................................................................

(place and date of issue) (name and signature of authorized person)

IS Lee

In-Seop Lee / Manager

Intended Use

This telephone system is intended to provide the user with voice communication between the system exten­sions and connection to the public switched telephone network by digital or analogue links.

The telephone system may be provided with the ability to communicate with local computer networks to pro­vide CTI functions and features. In this case, it is capable of passing information to the computer network via
a specified link.

The system is powered by mains voltage and can optionally be powered by batteries. Details of all connec­tions and power arrangements are provided in the instructions for use. It should not be used in any other
way.

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Chapter 1 Keyphone System Overview................................. 1

System Features ...................................................................................................1

System Overview .................................................................................................. 1

Product Safety Precautions ..................................................................................4

Chapter 2 Keyphone System Installation.............................. 5

Environment Requirements ...................................................................................5

Precautions for Installation.....................................................................................5

Unpacking the System........................................................................................... 6

Procedure for Removing Covers............................................................................7

Installation Procedure ...........................................................................................9

Grounding ...................................................................................................................... 9

Fixing the System on the Wall (Optional) .....................................................................11

Testing Initial System Operation ..................................................................................12

Installing the Battery ....................................................................................................13

Installing Cables ..........................................................................................................15

Connecting Trunks ...................................................................................................... 18

Connecting Telephones ............................................................................................... 19

System Options .................................................................................................20

Trunk Line and Station Line Assignment ............................................................21

Digital Keyset Programming ...............................................................................22

Replacing System ROMs .................................................................................... 22

Chapter 3 Connecting Additional Equipment ....................24

Music-On-Hold/Background Music .....................................................................24

External Paging .................................................................................................25

Common Bell ......................................................................................................26

Station Message Detail Recording (SMDR) ........................................................27

PC and Remote Programming ............................................................................27

Computer Telephony (CTM-CTI) .........................................................................28

Voice Mail/Auto Attendant ...................................................................................29

Doorphone and Door Lock Release ....................................................................29

Appendix A System Specifications ....................................31

Appendix B Troubleshooting ..............................................32

Appendix C Glossary ...........................................................33

– i –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

The DCS-408/DCS-408i digital keyphone system is designed to be suitable for a small office.
Both the DCS-408 and DCS-408i system comprise a baseboard to which eight (8) station
lines (four circuits for digital keysets and four lines for analogue telephones) can be con­nected.

While the DCS-408 system accommodates four analogue trunk lines, the DCS-408i system
accommodates two BRI lines (four channels). Moreover, the BRI2 line (two channels) of the
DCS-408i system can be substituted for ISDN station lines.

System Features

y Simple and slim design.

y Supports the Plug & Play function and is easy to install.

y Displays the call list.

y Supports a doorphone interface module (DPIM) connection allowing use of a doorphone.

y Accommodates eight station lines.

y DCS-408 accommodates four analogue trunk lines and DCS-408i accommodates four

digital trunk channels. The BRI2 line (two channels) of the DCS-408i system can be substi­tuted for ISDN station lines.

NOTE: The DCS-408/DCS-408i digital keyphone system does not support add-on-modules (AOMs)
or KDB-DLI and KDB-SLI keysets.

System Overview

General Details

Item Details

CPU MC68EC000 (16MHz) 16Bit Mode

ROM (DCS-408): 1Mbyte (2 x 27C4001)

Memory

ROM (DCS-408i):

RAM: 256 kbytes (2x681000)

2Mbyte (4 x 27C4001)

Switch Structure 256 x 256 Time Slot

SIO port RS-232C (SIO)

– 1 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

System Dimensions

Item

DCS-408/DCS-408i 190 350 60 2.0

DPIM 29 90 120 0.2

Height

(mm)

Width

(mm)

Depth

(mm)

Weight

(kg)

System Structure

System Capacity

DCS-408: 4 analogue trunk lines

Trunk

Station

Music-on-hold/ Background
music channel

DCS-408i: 2 BRI lines (4 channels)
(BRI2 line (2 channels) can be substituted for
ISDN station lines)

8 lines (4 lines for digital keysets and 4 lines
for analogue telephones)

1 (internal or external)

General-purpose dry contact 1

SIO port 1

External page 1

CAUTION

4 lines for analogue telephones. It is not possible to modify this configuration.

: The station lines have a fixed configuration of eight lines: 4 lines for digital keysets and

Front View of System

– 2 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

System Ports (After Removing Side Cover)

CO3.4/BRI2 port

CO1.2/BRI1port

NOTE: Only the DCS-408i system supports the BRI feature.

Rear View of System

– 3 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Product Safety Precautions

Precautions on Installation

Do not install the unit in a location subject to moisture or wetness.

► May cause a malfunction or shorten the lifespan of components.

Do not install the unit in a location near a heat source such as a heater.

► May cause a fire.

Precautions on Use

Do not attempt repair or modification yourself.

► Contact a service centre if repair is required.

If abnormal sounds, smells or smoke come from a telephone, immediately unplug the telephone line
and contact a service centre.

► If the unit is left in this state, a fire may result.

Precautions on Cleaning

Do not spray cleaning fluids directly on the unit, and do not clean the unit with benzene, thinner or
alcohol.

► May cause a fire or an electric shock.

– 4 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

This chapter describes the installation procedures for the DCS-408/408i digital keyphone
system, including precautions for your safety. Read this chapter carefully before installing the
system.

Environmental Requirements

y Temperature: 0°–40°C (32°–104°F)
y Relative

Power Specifications: Power supply of 60 or more watts

y

y Regular Frequency: 50Hz

Keep the unit away from static electricity and electrical noise

Humidity: Maximum 90% (non-condensing)

220VAC–240VAC, 1.6A

If there is a possibility of static electricity or electrical “noise” occurring where the keyphone
system is installed (due to carpets, electrical machinery, etc), measures for preventing this
should be put in place.

Install the unit where it is not exposed to harmful conditions

Be careful not to expose the system to direct sunlight, corrosive vapour, dust, regular vibra­tion or high levels of magnetic fields generated by motors or copying machines.

Precautions for Installation

Selecting Location

Select a location having sufficient space and levels of brightness to facilitate installation.

Preventing Static Electricity

The unit should not be installed in a room with carpets. To ensure safety, discharge any static
electricity by touching the metal portion of a grounded object or the ground connection on the
system before installing or repairing the system.

In addition, for protection and reliable operation of the system, standard grounding conditions
should be met.

Cable Requirements

Select a location which minimises the length of system cables, and ensure that all cables to
and from the system are not damaged. In addition, take care to protect all cables from elec­tromagnetic interference; for instance, by keeping them at a safe distance from cables for
other equipment.

– 5 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Refer to the cable requirements shown in the following table.

Equipment Cables AWG

Digital keyset 1 pr. twisted 24 (0.5 mm) 1300 400

Analogue telephone 1 pr. twisted 24 (0.5 mm) 3000 1000

Doorphone 2 pr. twisted 24 (0.5 mm) 330 100

DPIM 1 pr. twisted 24 (0.5 mm) 1000 300

Max
Feet

Max

Metres

Line Conditions

When using AWG 24 (0.5 mm) cables, the maximum length of a cable for analogue tele­phones, digital keysets, doorphones and doorphone interface modules (DPIM) is as shown in
the table above.

Be careful not to fold cables, make contact with other equipment or otherwise damage cables
during installation. Do not run cables outside of the building.

Checking Power

If the keyphone system shares AC power with other machines, problems from noise, mal­functioning due to voltage drops, or fire may result. Moreover, interruption of power at night
may cause malfunctioning and breakdown of the battery.

CAUTION

: Always use a dedicated, stable AC power supply for the system

Unpacking the System

Unpack your DCS-408/408i digital keyphone system and check that there is no damage to
any item. If you discover any damage, contact your dealer before attempting installation. Also
check that you have received the following items (as well as this manual!).

y DCS-408/408i Digital Keyphone System main unit

y Three screws and three rawl plugs for hanging the unit on the wall

y Cable for battery connection

y Two AC power fuses (F1) - 250V, 2A

y Two battery fuses (F2) - 125V, 3A

y AC power cable

y Four cable ties

– 6 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Procedure for Removing the Covers

The system cover comprises a front cover and a side cover. Refer to the diagram below to
remove the covers.

Q Removing the Side Cover

Viewed from the top, the small cover on the right-hand side is the side cover. A round indent
in the side cover is marked PUSH. To remove the side cover, push it to the right while gently
pressing the indent.

Q Removing the Front Cover

After removing the side cover, loosen the four screws holding the front cover, as shown. Two
are located under the side cover and two are on the base of the unit. After removing the
screws, hold the sides of the front cover and pull gently to remove it.

– 7 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

DCS-408: Internal View

DCS-408i: Internal View

Q Replacing the Covers

Replace the front cover by pushing it gently into place and secure it with the four screws you
removed. Slide the side cover back into position until the clips engage securely.

– 8 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Installation Procedure

 Grounding

! Grounding is essential to protect users and the keyphone system from lightning strikes, static

electricity and other sources of instant high voltage.

! The AC power supply normally includes a ground connection. If for any reason it does not, sepa-

rate external grounding should be done (as described here). Separate grounding should also be
done if the AC power supply does include grounding but there is a problem.

! Incorrect grounding may cause a malfunction in the system.

WARNING
Remove the AC power cable before installing the grounding
connection. If you attempt to connect a ground with the AC power
cord plugged in, you are at serious risk of death or injury.

NOTE: The system illustrated in this section is the DCS-408. However, this grounding procedure
also applies to the DCS-408i system

.

Connecting an External Ground (Optional)

To connect an external ground, if required, follow these steps.

1. Remove the covers of the system unit as described earlier.

A green cable with a yellow stripe is soldered to the grounding end of the AC power cable
connection (labelled AC INPUT) inside the system unit. The other end of the green cable
is attached to the FRG lug on the power board. (Fig 1.)

Cable connected to AC Input

Figure 1

– 9 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

2. Cut the green cable soldered to the AC INPUT, about 2~3cm (1 inch) from the soldered
end. (Fig. 2.)

3. Push the green cable out through the rectangular hole located near to the FRG lug
(Fig. 3) and insert the cable into the groove on the base of the unit (Fig. 4.).

Figure 2

Rectangular hole

Push out cable
through hole

Figure 3

4. Prepare an AWG 10 (2.6mm) cable for connecting to an external ground and connect it

to the ground. Insert the cable into the groove on the base of the unit and connect it to
the green cable you inserted in the groove at step 3. There are two ways to connect the
cables:

– 10 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

O solder the ends of the two cables together, or

O expose sufficient wire on both cables to twist them together tightly (Fig. 4.)

NOTE: The cable for external grounding is not supplied with your system and should be
prepared separately.

The system can now be installed as a freestanding unit or may be secured to a wall using the
following procedure.

Twist wires tightly

Externally grounded cable

Green cable

Figure 4

 Fixing the System on the Wall (Optional)

The unit has three grooves on the rear for fixing to a wall using the screws and rawl plugs
provided.

– 11 –

Samsung

w

DCS-408 & 408i Keyphone System Installation Manual

1. Drill three holes in the wall at the positions indicated for the screws using an electric drill.

CAUTION:

a wooden board having a thickness of about 2 cm to the wall and drill the holes in this.
Otherwise, you may damage the wall.

If the wall is made of plaster or brick, or if the building is prefabricated, you should fix

2. Insert the screws into the holes you drilled. If the wall is made of concrete, you will first
need to insert the rawl plugs into the holes and then insert the screws into the plugs. Fas­ten the screws, leaving each one protruding sufficiently to be able to support the system.

CAUTION:

may not be fitted securely to the wall.

If you insert screws directly into concrete walls without using rawl plugs, the system

Hole

Rawl plug

Scre

3. Fix the unit securely by locating the protruding screws in the grooves.

 Testing Initial System Operation

Check that the system operates normally before you begin connecting any cables to the unit.

1. Make sure the AC power switch is off.

2. Connect the power cable to the AC INPUT connector on the unit and to an AC mains
power socket.

3. Turn on the AC power switch. Check that the red LED inside the cover on the lower right­hand side is flashing.

.

– 12 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

If the red LED lights but does not flash:

y Turn off the power and remove the trunk board. Turn on the power again and see if

the red LED flashes.

If the red LED flashes, the trunk board is defective.

If the red LED still does not flash, the baseboard is defective.

Contact your dealer or the Samsung Technical Support department for advice.

If the red LED does not light:

y Switch off the power and remove the power cable. Then remove the cover as de-

scribed earlier and inspect the AC power fuse (F1) next to the AC INPUT (power ca­ble) connector.

If the fuse is normal, check the power supply and output voltage. If these are normal

and the red LED remains off, contact your dealer or the Samsung Technical Support
department for advice.

 Installing the Battery

Selecting the Battery

You need a battery to operate the DCS-408/DCS-408i digital keyphone system if a power
failure occurs. The battery required is DC 48V (6AH~40AH). If an excessively large capacity
battery is used, this may cause a system breakdown. If the battery capacity is too small, the
system may not operate satisfactorily.

Battery Specification

Consider the following specifications when you select a battery.

Minimum load current (A) 0 0.04

Maximum load current (A) 0.3 0.4

Rated output current (A) 0.1 0.2

Rated output voltage (V) 54 48

Item Charge Discharge

Current consumption of general telephone: 30mA

– 13 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

How to Install the Battery

WARNING

Ensure the mains power is switched ON before connecting the battery.
Failure to do so may result in severe injury.

1. Connect the red lead of the battery connection cable to the positive (+) terminal of the bat­tery and connect the black lead to the negative (–) terminal. If the polarity is not correctly
set, the battery fuse (F2) in the power supply unit will blow.

The locations of the battery fuse (F2) and AC power fuse (F1) are as shown below. Take
care not to confuse them.

2. Turn on the AC power switch next to the AC INPUT connector.

3. Remove the side cover of the system as described earlier. The port for battery connection
(BATT) is located at the lower right-hand side of the unit. Connect the end of the battery
connection cable to this port.

– 14 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

4. Turn off the AC power switch and check that the system operates normally.

5. Turn on the AC power switch again.

NOTE: During a power failure, a battery lasts for a minimum of 4 hours if its capacity is DC
48V/6AH, and for a minimum of 8 hours if its capacity is DC 48V/12AH. The expected duration
will vary with telephone usage and the charged state of the battery.

 Installing Cables

All lines are connected through the modular jacks on the system after removing the side
cover. The location of each jack is shown below.

– 15 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

The cables required for each jack differ according to the type of jacks as follows.

y BRI1 / BRI2 ports: RJ-45 cable (8-pin, DCS-408i only)

y CO1.2 / CO3.4 ports: RJ-11 cable (6-pin, DCS-408 only)

y MISC port: RJ-11 cable (6-pin)

y DLI / SLI ports: RJ-11 cable (4-pin)

NOTE: These cables are not supplied with your system and should be prepared separately.

Tieing the Cables

You should tie all the cables using the cable ties supplied with your system after completing
the cabling to the modular jacks.

– 16 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Modular Jack Pin Arrangement Layout

Connect lines according to the following modular jack pin layout.

Modular

Jack

BRI1

(DCS-408i

only)

Pin

Number

1,2,7,8 Reserved 1,2,7,8 Reserved

3,6 Tx1 3,6 Tx2

4,5 Rx1

Description

Modular

Jack

BRI2

(DCS-408i

only)

Pin

Number

4,5 Rx2

Description

CO1.2

(DCS-408

only)

SLI1

SLI2

SLI3

SLI4

Trunk 2 power

1,6

2,5 Trunk 2 2,5 Trunk 4

3,4 Trunk 1

1,4 Not Used 1,4 Not Used

2,3

1,4 Not Use 1,4 Not Use

2,3

1,4 Not Used 1,4 Not Used

2,3

1,4 Not Used 1,4 Not Used

2,3

failure transfer:
(Reserved­Not Used)

Analogue tele­phone port 1

Analogue tele­phone port 1

Analogue tele­phone port 1

Analogue tele­phone port 1

1,6

CO3.4

(DCS-408

only)

3,4 Trunk 3

DLI1

2,3

DLI2

2,3

DLI3

2,3

DLI4

2,3

Trunk 3 power failure
transfer: (Reserved­Not Used)

Digital keyset
port 1

Digital keyset
port 1

Digital keyset
port 1

Digital keyset
port 1

1,6 External page

MISC

NOTE: Power Failure Transfer is not a basic service.

2,5

3,4 External music

General-purpose
dry contact

– 17 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

 Connecting Trunks

WARNING

Always take the following precautions when installing trunks or telephone
lines. Failure to do so may result in death or serious injury.

Never carry out installation of trunks or telephone lines during storms or when lightning

!

strikes are possible.

! Do not install a telephone jack in a wet location if the jack is not specially manufactured

for use in a wet location.

! Do not touch telephone lines or interface terminals when they are connected with tele-

phone lines.

Analogue Trunks for DCS-408 / Digital Trunks for DCS-408i

Analogue trunks (Loop Start lines) are connected to the DCS-408 system through 6-pin, RJ­11 modular jacks. Digital trunks (BRI lines) are connected to the DCS-408i system through 8­pin, RJ-45 modular jacks. (See Installing Cables

For the DCS-408i system, the CO3.4/BRI2 trunk line (2 channels) can be used as station
lines for ISDN telephones.

, above.)

– 18 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

MPD/PRS Selection and Installation

NOTE: This feature is available on DCS-408 systems only.

The DCS-408 system has four analogue trunk interface lines. Each trunk interface line has
either a Metering Pulse Detection (MPD) function or a Polarity Reverse Detection (PRS)
function as an option.

When using the MPD function, insert a 12kHz or 16kHz MPD Hybrid chip into the socket of
each trunk interface line and add a capacitor of 4.7nF/400V to both tip and ring.

Trunk Port No. 12kHz /16kHz MPD Hybrid IC 4.7nF/400V Capacitor

Port #1 P101 C102, C103

Port #2 P201 C202, C203

Port #3 P301 C302, C303

Port #4 P401 C402, C403

When using the PRS function, insert a PRS Hybrid chip into the socket of each trunk inter­face line and short the capacitors of both tip and ring.

Trunk Port No. PRS Hybrid IC Short

Port #1 P101 C102, C103

Port #2 P201 C202, C203

Port #3 P301 C302, C303

Port #4 P401 C402, C403



Connecting Telephones

WARNING

Always take the following precautions when installing trunks or
telephone lines. Failure to do so may result in death or serious injury.

! Never carry out installation of trunks or telephone lines when there is a storm or when

lightning strikes are possible.

! Do not install a telephone jack in a wet location if the jack is not specially manufactured

for use in a wet location.

! Do not touch telephone lines or interface terminals when they are connected with the

telephone lines.

– 19 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Digital Keysets

The DCS-408/DCS-408i system provides four ports, DLI1–DLI4, for digital keysets. Connect
the digital keyset to one of the DLI ports using a pair of cables such as #24 AWG (0.5mm) or
#26 AWG (0.4mm).

Analogue Telephones

The DCS-408/DCS-408i system provides four ports, SLI1–SLI4, for analogue telephones.
Connect an analogue telephone to one of the SLI ports using a pair of cables such as #24
AWG (0.5mm) or #26 AWG (0.4mm).

System Options

The DCS-408/DCS-408i digital keyphone system includes several kinds of optional hardware
for memory backup selection, music source selection, etc.

Memory Backup Selection

The system is provided with a memory backup circuit (with a MEM BACK-UP switch) em­ploying 256K memory and a super-capacitor in case of power failure. The MEM BACK-UP
switch is located on the upper right-hand side of the unit and is set to OFF by default.

When you have finished programming your system (using MMCs as described in the Sam-
sung Combined Systems Programming Manual), turn the MEM BACK-UP switch to ON. If the switch
is not turned ON, all programmed data will be deleted if a power failure occurs.

– 20 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Music Source Selection

A music source selection jumper is located on the baseboard of the system unit. You can se­lect an internal or an external music source using this jumper. As an external music source,
you can connect—for example—a CD player or a radio to the MISC port of the system. Refer
to Chapter 3, Connecting Additional Equipment
selection jumper.

, for a detailed description of the music source

Trunk Line and Station Line Assignment

For DCS-408 systems

Trunks are assigned numbers 71 to 74.
Stations are assigned numbers from 21 to 28.

For DCS-408i systems

Trunks are assigned numbers 71 to 74.
Stations are assigned numbers from 21 to 28.
The BRI2 line (2 channels) can be substituted for two station lines for ISDN terminal equip­ment.

Numbers assigned to ports are summarised below.

Port Number

CO1.2/BRI1: 71~72

Trunk Port

DLI Port (1~4) 21~24

CO3.4/BRI2: 73~74
(With DCS-408i systems, the BRI2 line can be used as station
lines for ISDN terminal equipment.)

SLI Port (1~4) 25~28

– 21 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Digital Keyset Programming

The DCS-408/DCS-408i system can automatically program keys for a variety of Samsung
digital keysets. Keysets which can be connected to these systems include:

O DCS (Euro) keysets (24-, 12- and 6-button versions)
O iDCS series keysets (28-, 18- and 8-button versions)

Keys can be programmed with functions such as frequently dialled trunk numbers and station
(extension) numbers, speed dial numbers, call pickup, paging and many more.

Refer to the Samsung Combined Systems Programming Manual for more information on program­ming your system and keysets, and to the appropriate Samsung Keyset User Guide for op­erating your keysets.

Replacing System ROMs

You need to replace system ROM chips when upgrading the system program or fixing bugs
in the program. Before replacing the system ROMs, read this section carefully. If there are
any problems, or if you are unsure of anything, contact your dealer or the Samsung Technical
Support department for advice.

Replace the ROMs as follows.

1. Switch off the mains power and remove the power cable.

2. Remove the side cover of the system unit as described earlier. If you want to reprogram
the new system (using MMCs) when you’ve finished installing the new ROMs, set the
MEM BACK-UP switch to OFF to initialise the previous system data.

3. Remove the front cover of the system unit as described earlier

4. If an external battery is installed, remove it.

5. Locate the ROMs to be replaced. There are four ROMs on the baseboard, as shown in the

diagram.

NOTE: Older versions of the 408 may have only two ROMS: EVEN1 and ODD1.

– 22 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

6. Remove the ROMs using a chip extractor and keep them safe for reinstallation in case of

emergency.

7. Install the new ROMs with care, in the correct orientation, in the designated locations.

8. Reconnect the power cable, switch on the power and check that the system is operating

correctly. If not, remove the new ROMs, re-install the old ones and contact your dealer or
the Samsung Technical Support department for advice.

9. Set the MEM BACK-UP switch to ON if you switched it off in step 3.

10. If an external battery was installed, reconnect it.

11. Replace the front and side covers of the system unit.

Reprogram the system (using MMCs) if necessary.

– 23 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

This chapter describes how to connect the following equipment: Music-on-Hold/Background

music, external paging, common bell, serial printer for SMDR, a PC for remote programming,

a Computer Telephony Module

, Voice Mail System/Automated Attendant, and a doorphone.
You will see occasional references to MMCs for programming system features: in these
cases, refer to the Samsung Combined Systems Programming Manual for descriptions of the MMCs.

Music-On-Hold/Background Music

You can select an internal music source or an external music source by moving a jumper on
the baseboard of the DCS-408/408i system. Various media such as a CD player and a radio
can be used as the external music source.

You can program the system such that music can be received by the system during conver­sation over a trunk or a station. In this case, when the music-on-hold key of the digital keyset
is pressed, the system sends tone or internal music to a trunk (as set in MMC 408, Assign

Trunk Music On Hold Source) or a station (as set in MMC 309, Assign Station Music On
Hold). In addition, a digital keyset can be served with an external music source or an internal

music source as background music (as set in MMC 308, Assign Background Music Source).

An internal music source is selected by default. To select an external source, follow these
steps.

1. Remove the side cover and the front cover from the system unit. (This is described in

Chapter 2

2. A small jumper (labelled MOH) is provided at the lower right-hand side of the baseboard.

The jumper is located over the [INT] pin by default. To use an external music source, lift
the jumper off the pins and replace it on the [EXT] pin. (The diagram below shows the
DCS-408 system. The jumper position is the same for the 408i.)

.)

– 24 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

3. Connect an external music source (such as a CD player or radio) to the music source pins

of the MISC port.

Refer to the following table showing the arrangement of the modular jack pins for the
MISC port.

MISC

(RJ-11 [6-pin] Modular Jack)

Pin number Features

1
6

2
5

3
4

External page

General-purpose

dry contact

Music source

External Paging

The keyphone system is equipped with an interface for external paging. It can be connected
to customer-provided paging equipment. The interface is designed to match 600 Ohm and an
impedance matching transformer may be required if the impedance of the paging equipment
is not 600 Ohm.

Using one pair twisted-wire cable, connect the customer-provided paging equipment to the
external page pins of the MISC port.

Installing External Paging

1. Connect external paging equipment to the external page pins of the MISC port.

2. Assign the page zone number and select the member number (see MMC 605, Assign Ex-

ternal Page Zone).

3. The following table shows the arrangement of pins for the modular jack for connection of

external paging equipment.

MISC

(RJ-11 [6-pin] Modular Jack)

Pin number Features

1
6

2
5

3
4

External Page

General-purpose

dry contact

Music source

CAUTION: Do not connect external paging equipment directly to a commercial AC power
supply. This can result in system breakdown or fire.

– 25 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Common Bell

If you connect a common bell to the general-purpose dry contact pins of the MISC port, the
common bell can receive a call signal as if it is one of the stations. You can select a continu­ous bell or an interrupted bell using MMC 204, Common Bell Control. When an interrupted
bell is selected, a trunk call signal (1 second ON / 2 seconds OFF) should be designated.

After connecting a common bell, you can designate a station group through MMC 601, As-
sign Station Group, using a common bell code.

NOTE: You can use a common bell for receiving a call from a particular direct trunk. A relay
controlling the common bell is used with low voltage and low current so that the common bell can
only be used under 5Vdc and 40mA.

Installing a Common Bell

1. Connect a common bell to the general-purpose dry contact pins of the MISC port.

2. Set the common bell controlling method to a continuous type or an interrupted type (MMC

204).

3. Assign the common bell to a particular station group (MMC 601).

4. Designate the station group where the common bell is included as receiving a call from a

particular direct trunk.

5. The following table shows the arrangement of pins for the modular jack when connecting

a common bell.

MISC

(RJ-11 [6-pin] Modular Jack)

Pin number Features

1
6

2
5

3
4

CAUTION: Do not connect a common bell directly to a commercial AC power supply. This
can result in system breakdown or fire.

External page

General-purpose

dry contact

Music source

– 26 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Station Message Detail Recording (SMDR)

Connect a serial printer to the SIO serial port on the system using an RS-232C cable. Use a
shielded computer cable longer than 5m. The maximum allowed length of the cable is 15m.

SMDR output printer options are set in MMC 725, SMDR Options. Parameters are set in
MMC 804, System I/O Parameter.

Cable connections are as follows.

SIO Port Printer Port

RXD(2) <----------------------------------------------- TXD(2)
TXD(3) -----------------------------------------------> RXD(3)
GND(5) ------------------------------------------------- GND(7)

PC and Remote Programming

NOTE: This feature is applicable to the DCS-408i system only.

To program the system via a personal computer (PC) or customer-provided modem (remote
programming), connect a modem or a PC to the serial (SIO) port of the system using an RS­232C cable. Refer to diagram above. The PC must be equipped with the proprietary pro­gram, PCMMC.

Before connecting the PC or modem:

 Ensure that the power to the PC/modem and keyphone system is turned OFF.

 Remove the external battery, if installed.

Otherwise, the keyphone system and PC/modem may be severely damaged.

NOTE: When the PC or modem need to be more than 5m away from the keyphone system,
shielded computer cable is required. The cable must not exceed 15m.

– 27 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

MMC 804

It is necessary to set the Service Type of the SIO port as ‘PCMMC’ in MMC 804 in order to
program the system via a PC. Parameters related to PCMMC and remote programming are
also set in MMC 804.

The pin connections from the SIO port to the PC/modem are as follows.

PCMMC

SIO Port PC
9-PIN 25-PIN 9-PIN

RXD(2) ------------------------------------------------ TXD(3) TXD(3)
TXD(3) ------------------------------------------------ RXD(2) RXD(2)
GND(5) ------------------------------------------------ GND(7) GND(5)

Remote Programming

SIO Port MODEM
9-PIN 25-PIN

RXD(2) --------------------------------------------- TXD(3)
TXD(3) --------------------------------------------- RXD(2)
GND(5) --------------------------------------------- GND(7)
DTR(4) --------------------------------------------- DTR(20)

Computer Telephony (CTM-CTI)

NOTE: The Computer Telephony Module (CTM) and Computer Telephony Integration (CTI) feature
are applicable to the DCS-408i system only.

The DCS CTM is required to support CTI (TAPI) in the system. The CTM has a PC interface
(DB9) and a DLI connection which can be connected to any DLI port of the keyphone sys­tem.

A PC can be connected to the module via the DB9 (9-pin serial) connector. Connect the CTM
to a PC and a digital keyset as follows.

➊ Prepare one-pair twisted cables.
➋ Connect each CTM to the DLI port of your choice via the modular jack marked 'DLI IN'.
➌ Connect the CTM to a digital keyset via the modular jack marked 'KTS OUT'.

NOTE: A special PC software package is required to run CTI (TAPI) and you should read the
documentation supplied with the software package in order to install and use the software. Contact
your dealer for further information.

CAUTION: You cannot install the CTM outdoors.

– 28 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

The pin connections from the CTM to the PC are as follows.

CTM PC
COM1 COM2
9-PIN 25-PIN

TXD(2) ----------------------------------------------- RXD(2) RXD(3)
RXD(3) ----------------------------------------------- TXD(3) TXD(2)
GND(5) ----------------------------------------------- GND(5) GND(7)

Voice Mail/Auto Attendant

If you connect a voice mail system or automated attendant to a corresponding circuit of the
keyphone system, the common bell can receive a call signal as if it is one of the stations.

Set a port in MMC 207, Assign VM/AA Port, and set the necessary parameters in MMC 726,
VM/AA Options. You should connect voice mail/auto attendant to the SLI4 port only.

The following table shows the arrangement of pins for the modular jack when connecting
voice mail/auto attendant.

SLI4 Port

(RJ-45 [4-pin] Modular Jack)

Pin number Features

1, 4 Not Used

2, 3 SLI4

NOTE: Always connect the voice mail/auto attendant to the SLI4 port. Connecting the voice
mail/auto attendant to an SLI1–SLI3 port may cause critical errors.

Voice Mail/
Auto
Attendant

Doorphone and Door Lock Release

Connect a Doorphone Interface Module (DPIM) to a doorphone using a pair of #24 AWG or
#26 AWG cables. Then, connect the DPIM to a DLI port of your choice using a pair of #24
AWG or #26 AWG cables.

Refer to the section Installing Cables
DPIM and the DLI port.

If you want to use the automatic door lock release, connect the LOCK port on the DPIM to
the door lock release.

in Chapter 2 for details of the connection between the

NOTE: Use only a Samsung 4-line keyset doorphone for this feature, which you can purchase
separately.

The following table and diagram show the arrangement of pins for the modular jack when
connecting a doorphone and door lock release to the DPIM.

– 29 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

DLI port

(RJ-45 [4-pin] Modular Jack)

Pin number Features

1,4 NC (not used)

2,3

1,4 NC (not used)

2,3

1,4 NC (not used)

2,3 DLI3

1,4 NC (not used)

2,3 DLI4

DLI1

DLI2

Pin 6

Pin 1

To customer-provided door lock release

1 pair modular cables

I pair modular
cables

– 30 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

These specifications apply to both the DCS-408 and DCS-408i digital keyphone system.

Power Specifications

Item Specifications

AC Input

Maximum
Power Con­sumption

220~240 VAC,
50Hz, 1.6A

44 Watts

System Dimensions

Operating Specifications

Item Specifications

Operating Temperature

Relative Humidity (non­condensing)

Storage Temperature
(Min/Max)

0°~40°C

(32°~104°F)

10%~90%

-10°~+50°C

(14°~122°F)

Item

DCS-408/
DCS-408i

DPIM 29 90 120 0.2

Height

(mm)

190 350 60 2.0

Width

(mm)

Depth

(mm)

Weight

(kg)

Line Specifications

Item Specifications

Digital Keyset 2-line cable, max 400m (1300ft) (AWG #24 – 0.5 mm)

Analogue Telephone 2-line cable, max 1km (3000ft) (AWG #24 – 0.5 mm)

DPIM 2-line cable, max 300m (1000ft) (AWG #24 – 0.5 mm)

Doorphone 2-line cable, max 100m (330ft) (AWG #24 – 0.5 mm)

Printer RS-232C cable, 15m (50 ft)

Other Specifications

Item Specifications

External music source input characteris­tics

External Page Impedance 600 Ohm

Impedance 600 Ohm, maximum 350
mV

– 31 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Problems may arise while you are using the DCS-408/DCS-408i digital keyphone system. In
rare cases this may be the result of a serious fault in the system. More commonly, problems
can be resolved quickly and easily by following the troubleshooting tips described in this ap­pendix.

If the problem persists after you have taken the steps described here, contact your dealer for
advice and refer servicing to qualified service personnel.

NOTE: If you are not familiar with using the system, Samsung recommends that you contact your
dealer and refer servicing to qualified service personnel even if the problem and suggested actions
are listed here.

Common Problems

Condition Suspected cause Actions

DCS-408/DCS-408i

1

digital keyphone system
is not powered ON.

Nothing is displayed on

2

LCD of keyset.

Keyset does not oper-

3

ate.

Keyset volume control

4

does not operate.

Keyset ringer does not

5

operate.

- Fault in power cable connec­tion

- Fault in the power supply unit

- Fault in DCS-408/408i digital
keyphone system connection

- Fault in the keyset

- Fault in data communication

- Fault in keyset

- Fault in keyset

- Fault in the SLI ports when
using an analogue telephone

- Check power cable connection.

- Check the fuses
DC output)

- Check whether the red LED under the front

cover is flashing.

- Check if the modular jack has been re­moved.

- Check if the connecting cables are short­circuiting.

- Replace the keyset with another one and
check whether the new one operates.

- Check the ports to determine whether volt­age output is normal.

- Replace the keyset with another one and
check whether the new one operates.

- Replace the keyset with another one and
check whether the new one operates.

- Check ring output if the problem occurs with
another analogue telephone.

(check the AC input and the

6 Tone is not heard.

- Fault in the keyset

- Fault in line connection

– 32 –

- Replace the keyset with another one and
check whether the new one operates cor­rectly.

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Term Description

A function which allows a station to be designated as one of a pair

AUXILIARY RING

BATTERY (BACK-UP)

CALL

COMMON BELL

with another station, thus allowing the two stations to ring simultane­ously when there is an incoming call on either station.

An auxiliary power supply unit for temporarily operating the DCS­408/408i digital keyphone system if the mains power is interrupted.

Indicates an interval from the moment the phone rings to the comple­tion of conversation (in the case of an incoming call) or an interval
from the moment a telephone number is dialled to the completion of
conversation (in the case of an outgoing call).

A feature for making a group of phones ring simultaneously when
there is an incoming call, by assigning a bell to the group when des­ignating the group.

DIGITAL LINE INTERFACE
(DLI) PORT

DISA

DO NOT DISTURB (DND)

IDLE STATE

MEM BACK-UP SWITCH

MODULAR JACK

A port for connecting a digital keyset exclusively for the DCS­408/408i digital keyphone system.

A function allowing a user to call the DCS-408 digital keyphone sys­tem from outside and then make a call using the system. When a
user makes a call abroad using this function, call charges are billed
to the system.

A function for blocking incoming calls to a user’s phone from the
moment the function is set until it is released.

A state where a telephone is not in use; that is, the handset is on­hook (hung up).

A switch for connecting the battery and supplying power to the DCS­408/408i digital keyphone system if power is interrupted. This retains
system data for a predetermined time. The switch must be turned
ON after data is entered using MMC programming.

A jack facilitating connection of various circuits to the DCS-408/408i
digital keyphone system.

– 33 –

Samsung
DCS-408 & 408i Keyphone System Installation Manual

Term Description

PORT (CIRCUIT)

POWER FAILURE TRANS­FER (PFT)

RING

SINGLE LINE INTERFACE
(SLI) PORT

STATION

STATION MESSAGE DETAIL
RECORDING (SMDR)

A circuit for connecting and operating an individual trunk, digital key­set or an analogue telephone.

A function for directly connecting some trunks to particular analogue
telephones when power is interrupted to the DCS-408/408i digital
keyphone system, thereby allowing a call to be made regardless of
the status of the system.

A sound provided to inform a user of an incoming call. There are a
number of different rings: station/trunk ring, off-hook ring provided
while a call is being connected, etc.

A port for connecting an analogue telephone generally used at home
or in the office.

A telephone line connecting a DCS-408/408i digital keyphone sys­tem and a user’s phone.

A function for outputting information for trunk calls through the DCS­408/408i digital keyphone system using additional equipment such
as a PC or a printer.

SYSTEM PROGRAMMING
(MMC)

TONE

TRUNK

VOICE MAIL (VMS)

Programs (Man Machine Code) for setting up the operating system
with the various functions and parameters provided by the DCS­408/408i digital keyphone system, to be suitable for a user’s re­quirements.

Sound for informing a user of the operating state of the DCS­408/408i digital keyphone system. There are a number of tones: dial
tone, ring back tone, busy tone, etc.

A telephone line connecting a telephone exchange and the DCS­408/408i digital keyphone system.

A system for recording and storing voice messages.

– 34 –

Samsung Business Communications

Brookside Business Park, Greengate, Middleton, Manchester M24 1GS