Samsung Electronics reserves the right without prior notice to revise information in this publication for any
reason.
Samsung Electronics also reserves the right without prior notice to make changes in design or components
of equipment as engineering and manufacturing may warrant.
Copyright 1999
Samsung Electronics Co. Ltd
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.
7.3 Common Bell (Figure 7-3)....................................................................................................................7-3
7.4 Ring Over Page....................................................................................................................................7-4
7.5 Station Message Detail Recording (SMDR) (Figure 7-4).....................................................................7-4
7.6 PC Programming (Figure 7-5)..............................................................................................................7-5
PART 8. CHANGING SOFTWARE (FIGURE 8-1)…………………………………………8-1
FIGURES
FIGURE 2-1ATTACHING MOUNTING BRACKET TO BACKBOARD
FIGURE 2-2GROUNDING THE KSU
FIGURE 2-3MDF CABLING
FIGURE 2-4CONNECTING A SYSTEM BACKUP BATTERY
FIGURE 2-5SELECTING OPTIONS ON THE BASIC KSU
FIGURE 3-1INSTALLING OPTION CARDS AND A TRUNK CARD
FIGURE 3-2SIO OPTION CARD AND AA OPTION CARD
FIGURE 3-38TRK CARD AND 2/4BRI CARD
FIGURE 3-44TRK CARD
FIGURE 4-1CONNECTING POWER TO THE SYSTEM
FIGURE 4-2REPLACING FUSES (POWER SUPPLY UNIT)
FIGURE 6-1CONNECTING DIGITAL KEYSETS
FIGURE 6-2CONNECTING SINGLE LINE TELEPHONES
FIGURE 6-3CONNECTING A DOOR PHONE AND LOCK RELEASE
FIGURE 6-4CONNECTING A CTM (TAPI)
FIGURE 6-5CONNECTING ISDN TE
FIGURE 7-1CONNECTING EXTERNAL MUSIC
FIGURE 7-2CONNECTING EXTERNAL PAGING EQUIPMENT
FIGURE 7-3CONNECTING AN EXTERNAL LOUD BELL
FIGURE 7-4PIN CONNECTIONS TO PRINTER
FIGURE 7-5PIN CONNECTIONS TO PC
FIGURE 7-6PIN CONNECTIONS TO MODEM
FIGURE 7-7CONNECTING VM/AA
FIGURE 7-8INFORMATION ON SERIAL INTERFACE
To install the DCS-816 system, choose a site that meets the following requirements.
ü Select a location for the Key Service Unit (KSU) that has enough space for easy installation
and adequate lighting. (KSU dimensions [mm]: 465 (H) x 315 (W) x 120 (D))
ü Select a location that minimises cable lengths. See the Cable Requirements table below.
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 copy machines.
ü A direct commercial AC power outlet is required. Do not use extension cords. Preferably, a
dedicated circuit should be used to minimise the risk of other electrical equipment being
connected that could adversely affect system operation.
ü 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 a temperature range of
32°F ~ 104°F (0°C ~ 40°C) and a humidity range of 10% ~ 90% non-condensing.
ü Allow at least 150 mm clearance on both sides and 150 mm clearance on top of the KSU to
ensure proper ventilation.
ü Do not install within a 2-mile radius of broadcasting antenna or in close proximity to a fire
sprinkler head or other sources of water.
Meeting these requirements will help to ensure proper performance and greater life expectancy of
the system.
DIGITAL KEYSETS1 PR. TWISTED0.5mm1300400
SINGLE-LINE STATION1 PR. TWISTED0.5mm30001 KM
DOOR PHONE2 PR. TWISTED0.5mm330*100
CTI INTERFACE MODULE1 PR. TWISTED0.5mm1300400
* This is the maximum distance a door phone can be from the DPIM. The DPIM can be a
maximum of 250 cable metres from the KSU
The DCS-816 system consists of the Basic Key Service Unit (KSU), option cards, trunk interface
cards, interface modules and digital keysets. The KSU is a single metal cabinet, and in its basic
form has 16 station ports: twelve (12) keyset ports and four (4) SLT (single line telephone) ports.
Additionally, the KSU contains one (1) trunk expansion slot, two (2) option connectors and
miscellaneous circuits: one (1) external page interface, one (1) general-purpose dry contact and
one (1) music interface selectable to internal built-in music (a melody chip) or external music.
Two types of telephones can be connected to the system: proprietary digital stations called
"keysets" that connect to Digital Line Interface (DLI) ports and standard telephone sets, generally
called "single line telephones", that connect to Single Line Interface (SLI) ports.
The Trunk Expansion slot provides an option to select an analogue trunk card or a basic rate
interface (BRI) card.
The DCS-816 system also has some option cards to provide serial I/O ports or AA facilities.
The KSU starts with two (2) analogue trunk ports and 16 stations, and the trunk expansion slot
provides a maximum capacity of 10 trunk ports (analogue or digital) and 16 stations.
The system maximum capacity is as follows:
After unpacking the KSU, inspect for any signs of physical damage. If any damage is detected, do
not attempt to install. Contact the local distributor for advice.
Check to see that the Basic KSU carton includes the following items.
ü Basic Key Service Unit (KSU)
ü AC Power Cord
ü Wall-mount bracket
ü Spare fuses
ü Cable ties and screws
ü Battery connection cable
ü SLT User’s Guide (Standard telephone)
2.3 MOUNTING THE KSU (Figure 2-1)
DCS-816 can be wall-mounted. The KSU should be mounted on a plywood backboard at least 15
mm thick. Attach the wall-mount bracket to the backboard with the screws supplied and hang the
KSU on the bracket.
DCS-816 comes equipped ready to use with the third wire AC ground provided through the power
cord. This ground will be adequate for most applications. However, if it is suspected that there is
a problem with the ground provided at the AC outlet, or local codes require a solid earth ground to
be connected to the KSU, the existing third wire ground must be disconnected before power is
applied. The grounding lug on the KSU must be connected to a ground rod or metal cold water
pipe using #10 AWG (approximately 2.6 mm in diameter) solid copper wire. (See Figure 2-2.)
Failure to provide an adequate ground may cause unpredictable operation or even circuit failure.
Warning
Unplug the power cord from the AC outlet before attempting to connect the ground.
Hazardous voltage may cause death or injury. Observe extreme caution when working
with AC power.
GROUNDING THE KSU
2.5 MDF CABLING (Figure 2-3)
All connections to the DCS-816 system are made via a customer–provided main distribution frame
(MDF) and the cables can be routed into the KSU cabinet from below.
A 25-pair male champ connector and a 4-pair modular jack (RJ-45) on the base board are
prepared for external connections. The connections for SLTs are made through the RJ-45
modular jack and other connections are made through the champ connector. The detailed pin
assignments are as follows. (Note that the colour of wires may be differently specified in some
countries.)
The first 20 pins are assigned to connections for trunk interfaces on a trunk interface card as well
as on the base board. The next 6 pins are for connection of miscellaneous circuits and the last 24
pins are assigned to connections for 12 DLI ports on the base board.
Tip, 1st Loop-start Trunk Interface on the base board
Ring, 1st Loop-start Trunk Interface on the base board
Tip, 2nd Loop-start Trunk Interface on the base board
Ring, 2nd Loop-start Trunk Interface on the base board
Tip of 3rd Analogue Trunk or Tip of 1st BRI TX
Ring of 3rd Analogue Trunk or Ring of 1st BRI TX
Tip of 4th Analogue Trunk or Tip of 1st BRI RX
Ring of 4th Analogue Trunk or Ring of 1st BRI RX
Tip of 5th Analogue Trunk or Tip of 2nd BRI TX
Ring of 5th Analogue Trunk or Ring of 2nd BRI TX
Tip of 6th Analogue Trunk or Tip of 2nd BRI RX
Ring of 6th Analogue Trunk or Ring of 2nd BRI RX
Tip of 7th Analogue Trunk or Tip of 3rd BRI TX
Ring of 7th Analogue Trunk or Ring of 3rd BRI TX
Tip of 8th Analogue Trunk or Tip of 3rd BRI RX
Ring of 8th Analogue Trunk or Ring of 3rd BRI RX
Tip of 9th Analogue Trunk or Tip of 4th BRI TX
Ring of 9th Analogue Trunk or Ring of 4th BRI TX
Tip of 10th Analogue Trunk or Tip of 4th BRI RX
Ring of 10th Analogue Trunk or Ring of 4th BRI RX
Tip, General-purpose Dry Contact on the base board
Ring, General-purpose Dry Contact on the base board
Tip, External Page Interface on the base board
Ring, External Page Interface on the base board
Tip, External Music Interface on the base board
Ring, External Music Interface on the base board
Tip, 1st DLI port on the base board
Ring, 1st DLI port on the base board
Tip, 2nd DLI port on the base board
Ring, 2nd DLI port on the base board
Tip, 3rd DLI port on the base board
Ring, 3rd DLI port on the base board
Tip, 4th DLI port on the base board
Ring, 4th DLI port on the base board
Tip, 5th DLI port on the base board
Ring, 5th DLI port on the base board
Tip, 6th DLI port on the base board
Ring, 6th DLI port on the base board
Tip, 7th DLI port on the base board
Ring, 7th DLI port on the base board
Tip, 8th DLI port on the base board
Ring, 8th DLI port on the base board
Tip, 9th DLI port on the base board
Ring, 9th DLI port on the base board
Tip, 10th DLI port on the base board
Ring, 10th DLI port on the base board
Tip, 11th DLI port on the base board
Ring, 11th DLI port on the base board
Tip, 12th DLI port on the base board
Ring, 12th DLI port on the base board
No polarity
No polarity
Expansion card
No polarity
Expansion card
No polarity
Expansion card
No polarity
Expansion card
No polarity
Expansion card
No polarity
Expansion card
No polarity
Expansion card
No polarity
Expansion card
No polarity
No polarity
It is recommended that an external battery should be installed to backup the system in case of AC
power failure. The DCS-816 system is equipped with battery charging and discharging circuits to
interface with an external battery.
To decide the capacity of the battery, keep in mind that it may damage the system if too large
while it cannot backup the system long enough if too small. The capacity should be not less than
6AH nor more than 26AH. The battery voltage should be 48 volts.
To connect an external battery, first pick out the battery connection cable through the MDF cable
path. Connect the RED lead of the cable to the positive (+) terminal of the battery and the BLACK
lead to the negative (-) terminal. Then insert the housing connector into the header in the power
supply.
NOTE: The actual connection should be done as the final step in the installation of the KSU.
ON THE POLARITY AND
THE INRUSH CURRENT
AT THE POINT OF
2-6
SAMSUNG Installation
DCS-816March 1999
2.7 Selecting Options on the Basic KSU (Figure 2-5)
There are some hardware options to select in the Basic KSU: Memory Backup Selection, Music
Source Selection and MPD/PRS selection for the two (2) analogue trunk lines on the base board.
2.7.1 Memory Backup Selection
The system is equipped with 256Kbyte of data memory and memory backup circuitry (a super
capacitor) to protect the data in case of any power failure. The memory backup circuitry has a
shunt-pin switch to enable backup. Before shipment, the switch is set OFF to prevent the super
capacitor from discharging during shipment and storage, and it should be switched ON after
installing and programming the system. Otherwise, the customer data and the programmed data
will be lost in the event of a power failure. (See Figure 2-5.)
2.7.2 Music Source Selection
The Basic KSU is equipped with a melody chip to provide music to stations and trunk lines as
Music-on-Hold or Background Music. In addition, it has an interface for an external music source,
(CD player, radio etc).
As the system provides only a single music channel for Music-on-Hold or Background Music, refer
to Figure 2-5 to select the music source at the end of installation. A shunt-pin switch selects the
music source: the internal melody chip or an external music source.
How to connect the external music source is explained in Part 7.
2.7.3 MPD/ PRS Selection and Installation
The Basic KSU has two (2) analogue trunk interfaces and each trunk interface is equipped with a
socket to install an option chip for Metering Pulse Detection (MPD) or Polarity Reverse Signal
(PRS) detection. (See Figure 2-5 for position of option chip sockets and ensure that the chips are
firmly inserted into the sockets.) One chip per line. DCS option chips for MPD or PRS can be
installed.