6-2 List of terms
297-1001-019 Standard 02.01 April 1997
DPP
Distributed Processing Peripheral
A peripheral device of the DMS-100 that functions as an AMA data collector
and an AMA transmitter in the AMATPS of the DMS-100. The DPP collects
AMA data from the DIRP, formats the data, stores the data on its own internal
disk and transmits the data to a data collection center when polled by the
collection center. The DPP performs the AMA Transmitter (AMAT)
functions independently of the DMS-100, thereby off-loading the AMAT
functions from the DMS-100 Central Control Complex (CC)
DRAM
Dynamic Random Access Memory
A Random Access Memory system that employs transistor capacitor storage
cells. The logic state is stored in the capacitor and buffered by the transistor.
The capacitive charge is only held for a short duration and must be refreshed
at a periodic rate to maintain it programmed state.
DSI
Data Stream Interface
A circuit of the DPP that accepts AMA data from the DMS-100 Magnetic
Tape Drives (MTDs). The DSI emulates an MTD on DMS-100 MTD Ports,
duplicating all of the communications signals normally exchanged between
the DMS-100 and an MTD.
EAT
Emergency Administration Terminal
EMI
Electromagnetic Interference
EPROM
Erasable Programmable Read Only Memory
A read-only memory in which stored data can be erased by ultraviolet light
and reprogrammed.
ESD
Electrostatic Discharge
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