Hardware Descriptions; Basic Key Service Unit; Option Boards - Samsung DS 616 User Manual

PART 2. HARDWARE DESCRIPTIONS
2.1 BASIC KEY SERVICE
UNIT
The DS 616 Key Service Unit (KSU) is a single
metal cabinet containing the following:
A power supply.
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Processing, memory and switching. CPU
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(68EC000), 2 Mbyte Program Memory, 256
Kbyte Data Memory with a backup super
capacitor, real time clock.
Twelve (12) Digital Keyset Interfaces.
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Four (4) Single Line Telephone Interfaces
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with loop-disconnect facilities.
One (1) Internal Music Source or an Exter-
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nal Music Interface for Music-On-Hold and
Backgroung Music.
One (1) External Page Interface.
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One (1) General-Purpose Dry Contact.
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A 1.5W sinusoidal ring generator for single line telephones.
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One (1) Trunk Expansion Slot, one (1) SIO Option Connection for SIO2 and one (1) AA
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Option Connection.
One (1) Amphenol Connector and one (1) RJ-45 Connector for external connections
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and other connectors for the Power Supply Unit and External Backup Battery.

2.2 OPTION BOARDS

SIO OPTION BOARD
Two (2) dedicated connectors in the Basic KSU are provided for an SIO. The option board
contains two (2) RS232C Serial Interfaces with DB9 connectors for connection to a per-
sonal computer, a printer, or a modem—for SMDR or PCMMC. The SIO2 option board is
equipped with an 8 channel analog CID signal decoder.
To activate analog CID presentation facility, the SIO2 option board must be installed with
an analog trunk expansion card, i.e. 3 TRK card or 6 TRK card.
Only one (1) board can be installed per system.
2.1
FIGURE 2–1