[slinkelist] Slink-e problems with external receiver modules

[Max Spring]

I have problems in getting an external receiver module to work with the
Slink-e:

Most of my telephone cables don't work at all.  I guess either because they
don't have 4 conductors, or they have it in the wrong order.

By using one particular cable (presumably the one I got with the Slink-e months
ago) shows some sign of life: Whenever I plugin or unplug a receiver module,
the control LED flashes.  Also when I send IR signals to that module, the
control LED flashes, too.

However, the Slink-e doesn't seem to notice anything of it.  Whereas, using the
build-in IR receiver works great.

I'm confused.  I'd appreciate if someone could help me further.

Regards,
-Max