Pinout of TU58 serial connector J2 (on the controller PCB), as seen
looking straight on at the pins:

	-----++
	 A B ||
	 C D \|
	   F  |
	 H J /|
	 K L ||
	-----++

That mess on the right is supposed to be the key (as if the missing
pin weren't enough).

J2-A	Auxiliary B
J2-B	Ground
J2-C	Receive Line +
J2-D	Receive Line -
(J2-E)	(key)
J2-F	Ground
J2-H	Transmit Line -
J2-J	Transmit Line +
J2-K	Ground
J2-L	Auxiliary A

This looks like the opposite of the DLV11J pinout, i.e. a straight through
cable acts as a null modem.  Haven't tried it though.

John Wilson 16-Mar-1995