A friend of mine has obtained an Ericsson Businessphone system, apparently a BCS150. I am a trainee technician at a business communication supply firm, so I have an understanding of phone systems in general, but our firm deals mostly in Panasonic PBXs, so I have no experience with this particular system.

According to what I've been able to figure out, I need to use software called RASC, and connect to the V.24 Port on the unit, in order to configure this unit. However, I haven't been able to find this software, and I'm not sure where the V.24 port is on the unit, and what it's pinout is.

I assume the V.24 port is on one of the first two cards, either the one marked CPU2, of the one marked EXU (can't remember if there's some suffix on EXU). I see several pin headers 3 columns wide on the CPU card, and a single 10 pin connector on the EXU card.

Can anybody please help me obtain the RASC software, and/or suggest how I might build/obtain a cable or device for interfacing this this machine?