Design

The design of the card is split in 3 parts where the first and last parts are similar and the middle part translates the desired signals.

Source - Plug to fit into the ZIF socket of the EPROM programmer

• Address Tri-state switches
• Header for additional address lines
• Space for 2 off 24 pin headers to be used for 48 pin programmers. Shorter lengths may be fitted for the smaller sizes of programmers.
• These headers are repeated if jumper wires are used to connect directly to the output.
• Tracks are marked with a section that allows them to be permanently cut.
• Another row of headers may be fitted the other side of these cuts, so that the tracks may be reconnected using header links.

Translation Section

• 2 x 12 way DIP switches
• Tri-state switches (?)

Target - 48 pin ZIF Socket - Additional connector

• This allows up to the a maximum size 48 pin zif socket to be used.
• The headers are repeated so that jumper wires may be used.
• Tracks are marked with a section that allows them to be permanently be cut.
• Tracks may be reconnected using a header link
• 48 pin IDC connector to allow connection to non standard external cards
• Z88 card socket connector

Parts List

CONNECTOR, HEADER, THT, 2.54MM, 50WAY

109-6994 

SOCKET IC, ZIF, 48WAY

HEADER, 2.54MM, THT VERT, 24WAY

HEADER, VERTICAL, 0.1", 8WAY

588-775

HOUSING, 26AWG, 8WAY (A19)

109-8717

RIBBON CABLE, IDT, 8WAY (A19)

SWITCH, DIL, SLIDE, 12WAY

SWITCH, DIL, TRI-STATE, 10WAY

RESISTOR, CARBON FILM, 2K2, 0.25W, 5%