Black Jaguar CAN Issues

[Mark McLeod]

You see the problem. This is a CAN-bus we're dealing with, not an alternating CAN/RS232 hybrid. A CAN-port won't talk to an RS232-port of course, they speak different languages.

The Black Jaguars are intended only as a converter from RS232 to CAN at the start of an uninterrupted CAN bus, they don't have enough CAN ports to form a traditional CAN daisy chain, only the Gray's have the CAN ports to continue a daisy chain.

You'd have to try a different style of CAN bus using what's called vampire taps, where you have a continuous CAN cable with splices for side cables split off to feed your Black Jags. You still need to terminate the cable with a 100 ohm resistor. This is essentially what the Gray Jags are actually doing, just internally. I haven't tried running a continuous outside cable for a string of Black Jags myself though.

You might be able to chain two Black Jags together the prescribed FRC way, as long as you terminate the 2nd Jag's RS232 port with a 100ohm resister, the same way you terminated the first RS232 cable. But I haven't tried this either.