Part 2. Hardware Descriptions; Basic Key Service Unit - Samsung DCS-816 General Description Manual

Digital communication system

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SAMSUNG

DCS-816

PART 2. DCS-816 - HARDWARE DESCRIPTIONS

The DCS-816 Key Service Unit

(KSU, Figure 2-1) is a single metal

cabinet containing the following:

• A power supply

• Processing, memory and switching:

CPU (68EC000), 2 Mbyte program memory,

256 Kbyte data memory with a backup super

capacitor, real-time clock

• Two (2) analogue C.O. line interfaces with

connections for PRS or MPD chips.

• Twelve (12) digital keyset interfaces

• Four (4) single line telephone interfaces

with loop-disconnect facilities

• One (1) Internal Music source or an External

Music interface for Music-on-Hold and Back-

ground Music

• One (1) External Page interface

• One (1) general-purpose dry contact

• Two (2) Power Failure Transfer relays. Two (2) pre-assigned analogue trunk lines will be

automatically transferred to station 15 and station 16 respectively in case of power failure.

Which analogue trunk lines are to be transferred must be decided by the installer

• A 1.5W sinusoidal ring generator for single line telephones

• One (1) trunk expansion slot, one (1) SIO option connection for SIO1 and one (1) AA option

connection

• One (1) champ connector and one (1) RJ-45 connector for external connections and other

connectors for the Power Supply Unit and the external backup battery.

2 - 1

General Description

March 1999

Figure 2-1

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