Retrofitting a 1986 Maho MH400E

I _think_ that the Smart Serial cards will work with either straight or crossover cables.

Doesn't he need that DB25 connection on the 5i25 for the 7i77? The 5i25 has a second DIL26 pinhead, for connecting a 7i44.

Or will the 7i77 work if it you connect
7i77 through TB6-> 7i74 , then 7i74 --> 5i25 through the DB25 cable?
Mark

Alas, SSerial cards cannot have their RX/TX pairs swapped.
The interfaces are designed for straight through cables.

You might be confused Ethernet, our Ethernet cards will work with straight
through or crossover cables (this is a common Ethernet feature known as MDIX)

PCW wrote: Alas, SSerial cards cannot have their RX/TX pairs swapped.
The interfaces are designed for straight through cables.

You might be confused with Ethernet, our Ethernet cards will work with straight
through or crossover cables (this is a common Ethernet feature known as MDIX)

RotarySMP wrote: Doesn't he need that DB25 connection on the 5i25 for the 7i77? The 5i25 has a second DIL26 pinhead, for connecting a 7i44.

The extra port on the 5i25 is DIL26. This needs a DIL26 to DB25 adaptor, then a DB25 cable to connect to a 7i74.
www.amazon.co.uk/Female-Motherboard-Brac...s-show/dp/B07M64X6LS
(Or you could make your own DI26 to DB25 connector.)

The 7i44 connects to the _50_ pin cards (such as the 5i20 or 5i24)

Oh. Thanks for picking that up.