Acorn FileStore E01, Service Manual

Page: 63 / 164

Chapter 2 E01S Specification
FileStore Service Manual 55
2.4 Signal connectors
2.4.1 FileStore E01S expansion bus pinouts
Connector Type: 50-way ‗Type 57‘ (Delta) male. The pin allocations are as follows:
Pins 1-12 Gnd
Pin 13 Leave open
Pins 14-25 Gnd
Pin 26 -DB(0)
Pin 27 -DB(1)
Pin 28 -DB(2)
Pin 29 -DB(3)
Pin 30 -DB(4)
Pin 31 -DB(5)
Pin 32 -DB(6)
Pin 33 -DB(7)
Pin 34 -Not connected
Pin 35 Gnd
Pin 36 Gnd
Pin 37 Gnd
Pin 38 Not connected
Pin 39 Gnd
Pin 40 Gnd
Pin 41 Not connected
Pin 42 Gnd
Pin 43 -BSY
Pin 44 -ACK
Pin 45 -RST
Pin 46 -MSG
Pin 47 -SEL
Pin 48 -C/D
Pin 49 -REQ
Pin 50 -I/O
2.4.2 Econet port
Data rate of up to 200 Kbps (determined by the Econet clock rate)
Connector type: 5 pin, 180 degree DIN socket.
Econet port pinouts are as follows:
Pin 1 DATA+ Data positive
Pin 2 GND Ground
Pin 3 CLK- Clock negative
Pin 4 DATA- Data negative
Pin 5 CLK+ Clock positive