Acorn FileStore E01, Руководство по обслуживанию

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Chapter 2
FileStore Service Manual 31
2. E20 Specification
This chapter gives details of the main features of the FileStore E20 hard disc file server.
2.1 General specification
2.1.1 Hardware components
Within the box is a switch mode power supply, 3.5‖ 20 Mbyte hard disc with onboard SCSI
controller, and an E20 host adaptor. The E20 host adaptor performs the function of
converting the 2MHz FileStore Expansion Bus from the E01 unit to the SCSI bus. The hard
disc contains a pcb to provide read/write and head selection, motor speed control, data
serialiser/ deserialiser, dual port sector buffer, ECC generation/correction, and SCSI bus
interface.
2.1.2 Software components
The hard disc is already formatted (as an ADFS disc), initialised as a file server and contains
a variety of management and user utilities. There are no other software components; the filing
system software is contained in the E01 unit.
2.2 Physical
2.2.1 E20 unit
Case Dimensions length 333mm
width 351mm
height 78.8mm
Case colour Acorn Specification 0920,208
Case material Acorn Pan No. 900,000 (ABS Cycolac)
Mild Steel Chassis
Case Finish Vapour Blast
Net weight 5kg
2.2.2 E20 packaging
Packaging material
Neopolene Inner
Triwall cardboard outer
Tray to hold expansion cable
Package dimensions
length 545mm
width 500mm
height 230mm
Gross weight
7kg
2.3