Looking for info - Computer Extension systems WE-VM8E8 board

[Bob Smith]

I have 3 of these omnibus boards, all fully populated with 8K 12 bit
words of 2102 static ram.
What I don't have is the documentation that describes the way the
jumpers need to be set up for each 8K field.
The set up seems to involves what looks like a 3 parallel 8 pin
sockets that look like one and a half 16 pin DIP socket.
Any hints or pointers toward docs would be greatly appreciated

THanks
bob