Product specifications

2-1
Chapter 2 Hardware Descriptions
This chapter describes the hardware of the iDCS 100 system as follows.
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Key Service Unit
!
Interface Cards
!
Station Equipment
Key Service Unit
The iDCS 100 Key Service Unit (KSU, Figure 2–1) is a single
metal cabinet containing the following:
! A power supply
! Processing and switching
! Eight 2B+D digital keyset interfaces
! Memory Card
- MEM3: A removable MEM3 card, containing 3Myte
Program memory, 1Mbyte Data memory with a back–up
super capacitor, real time clock, a monitor LED and a
RAM clear switch
- MEM4: A removable MEM4 card, containing 3Myte
Program memory, 1Mbyte Data memory (only
512Kbyte is back-uped), 512Kbyte common menory,
real time clock, a monitor LED, a RAM clear switch,
and LAN interface
! One Internal Music source or an External Music interface for Music–on–Hold and Back–ground
Music
! One External Page interfaces
! One general–purpose Dry contact
! Three universal expansion slots, a MEM3 or MEM4 card slot, a 2 SLI card slot and a MISC card slot
2 Champ connectors for external connections and other connectors for the Expansion cabinet and the
Ring Generator Unit
Ring Generator Unit RGU1 or RGU2
Two kinds of sinusoidal–waveform Ring Generator Units are available. RGU1 drives 3W ring signals
while the other provides 20W ring signals. The larger unit is required when a large number of single
line telephones are operation behind the system.
Figure 2
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1 KSU