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-
- MAKING A CABLE
-
- The following connections need to be made on a DB25 cable:
-
- You are making a cable that connects the two PARALLEL ports
- of your Amiga together.
-
- CABLE: Connect D7-D0,SEL,POUT, and BUSY across,
- Connect ACK (FLAG interrupt) to SEL locally:
-
- (2-9) D7-D0 ------------ D7-D0
- (12) POUT ------------ POUT
- (11) BUSY ------------ BUSY PARALLEL PORT
- (13) SEL --+------+-- SEL
- (10) ACK -/ \- ACK
- (18-22) GND ------------ GND (18-22)
-
- Double check the gender for the DB25 connectors you will
- need to connect to your Parallel Port.
-
- A500/A2000, Parallel port is Female so you need a Male connector
- A1000, Parallel port is Male so you need a Female connector.
-
-
- The easiest thing to do is to buy a premade cable with all 25
- lines passed and DB25 connectors on both ends (Double check the
- gender's that they match before you buy the cable!) And then rip
- it apart and cut-and-seal those wires which are not supposed to be
- connected. You also need to bridge ACK to SEL as per the diagram
- above ON BOTH ENDS OF THE CABLE, as shown above.
-
- ** NEVER PLUG IN AN UNMODIFIED CABLE BETWEEN THE TWO COMPUTERS!
-
- ** DOUBLE CHECK YOUR CABLE BEFORE INSTALLATION!
-
-
- WARNING! INTERFERENCE WITH SERIAL-PORT.
-
- The RI (Ring Indicate) line on the Amiga's serial port
- uses the SEL line to source a transitor. This interferes
- with the SEL line which, as you can see, is part of the
- network.
-
- Be sure that
-
- (a) either no serial cable is attached or that
- (b) It doesn't connect RI or that
- (c) your modem doesn't connect RI internally.
-
-
-