Iwatsu DCKT970, Owner'S Manual

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ADIX-VS General Description - 23
Component Description
VS-PWSU Power Supply Description
The VS-PWSU power supply provides the required power for the ADIX-
VS. One VS-PWSU is required in each ADIX-VS.
Battery Back-Up
The VS-PWSU power supply may be equipped with optional connecting
cable for connection with a backup battery array. Backup time is dependent
upon battery array, system size and usage.
VS-MAIN Motherboard Interface Card
The VS-MAIN motherboard has connectors to support six Digital Stations,
two Analog Stations, one External MOH Source, and two Serial Ports. In
addition it has connectors for the VS-CPUMEM CPU Card, three
VS-ICOTB ISDN BRI cards or VS-2CITK Caller ID Trunk Cards, two
VS-4PSUB Digital Station Cards, one VS-VML Voice Mail Card, and one
VS-MISC Miscellaneous Function Card.
VS-CPUMEM Common Control Card
The VS-CPUMEM common control card is the fundamental component for
system operation. This card is installed in a dedicated VS-MAIN card slot
and contains the Central Processing Unit (CPU), ADIX-VS Operating
System and Highway Controller.
The VS-CPUMEM Controller Card is the standard processor for the ADIX-
VS system. It controls all ADIX-VS system functions with a 32-bit
processor. The VS-CPUMEM Controller Card performs highway controller
functions, and synchronizes digital trunk clock timing and system highway
timing.
Memory. The VS-CPUMEM card contains 2 megabytes of RAM and 4 MB
of flash memory to store the user database. To retain the stored contents of
the RAM without the system power supply, nickel-cadmium batteries are
provided with the VS-CPUMEM card.