Specifications

CONTENTS
1–2
PART 1. SYSTEM OVERVIEW
1.1 GENERAL DESCRIPTION
The SAMSUNG DCS (Digital Communications System) is a digital telephone system de-
signed for small to medium-sized businesses. It can operate with the functionality of a
square key system, PABX or a combination of both (hybrid). The DCS employs the very
latest DSP (Digital Signal Processors) digital technology.
The DCS offers a variety of interface cards that allow connection to the public telephone
network or to private networks. These are generally referred to as trunk cards. Two types
of telephones can be connected to the system. Proprietary digital phones called “keysets”
connect to digital line interface cards (DLI). Standard telephones generally called “single
line sets” connect to single line interface cards (SLI). In addition, DLI station ports are
used to connect peripheral devices such as door phones, serial interface devices and
add-on modules. Miscellaneous circuits are provided to allow such optional features as
external paging, music on hold, background music, common audible devices, alarms and
emergency power failure telephones. All interface cards are encased in an anti-static
plastic enclosure and can be inserted or removed with power on to eliminate unnecessary
service interruptions while performing maintenance.
All DCS keysets utilize a single PCB with surface-mounted components assuring the highest
product quality and long life. Samsung’s customary large, easy-to-read displays and LEDs
in the button design make them much easier to use. In many instances, sophisticated
features are made simple through the use of friendly display prompts or push-on/push-off
feature keys.
Expanding the SAMSUNG DCS system is both economical and easy. Begin with the basic
Key Service Unit and then add up to two expansion cabinets as your business grows. Its
low density card design allows greater flexibility when configuring a system for the right
combination of lines and stations. A removable software cartridge (ROM card) makes it
convenient to upgrade to future feature packages.
1.2 SIZE AND CONFIGURATION WITH PSU 40
The DCS is a fully modular system comprised of a basic Key Service Unit, two additional
expansion cabinets, interface cards and electronic keysets. A fully expanded system us-
ing the T1 card can have a maximum of 168 lines or 112 stations. Without the T1 card, the
maximum number of lines is 160 and the maximum number of stations is 120.
SINGLE CABINET SYSTEM
A single cabinet system has seven universal card slots (see Figure 1–1). Station or trunk
(line) cards can be installed in any of these slots. The T1 card must be installed in slot 1,
3 or 5 and the even-numbered slot to the right of the T1 card must be left empty. This card
requires two slots as it provides 24 lines. This allows a maximum of 40 stations of any kind