X-Cable Types Supported by 64HDD
This page describes the cable types that 64HDD
can use. The two cable types are part of a larger family of PC to
CBM cables, collectively called X-Cables. My personal preference
is to use the XE1541 cable as this will safely work on all PC computer
types. This cable also works with a variety of other CBM-PC disk-copying
If you do not have such a cable already then you
can build one using the diagrams below, or order one through me. You
can also have the X-Cable functionality built into one of the
faster parallel cables offered in the shop
Note: the XM and XA1541 cables are not as yet
supported. Until support is available you can modify your XM cable
by swapping two wires on the Commodore plug (DATA and RESET). Some
people have modified their cable with a switch to allow it to operate
as both types. If you are thinking that you need to buy an XA cable
to protect your modern PC, but already have an XE cable; then try
the XE first as it will not do any damage (according to the designers),
and it may work anyway!
|X1541 (basic wiring): - this cable
uses simple wiring and the O/C capability of earlier LPT ports.
The cable connects the PC's LPT port to the Commodore's serial
port (on the computer or drive). Not all newer computers have
O/C ports and the use of this simple cable will damage these
If in doubt, use the XE1541 cable.
|XE1541 (diode protection): - this
cable is an enhancement of the basic X1541 cable and uses 4
diodes to isolate the cross-wiring between input and output
connections. This cable is recommended for newer LPT ports (for
example those which can be configured in multiple modes).
The cable will only work if the diodes
are connected in the correct direction.