25 Feb
2007
25 Feb
'07
8:02 p.m.
On 2/25/07, Jay West <jwest at classiccmp.org> wrote:
However, the same type of plugs & sockets on the back are also used to
daisychain power signals from cpu to memory expansion box and/or i/o
expansion box. This is so if you turn on the cpu, the memory and I/O
backplane expansion boxes power up as well.
Good point. For example if you have an HP 1000 2117F and the
companion external FPP box you normally connect them together with
cable that plugs into the same type of connector as the battery box
connector. Again I would need to check the manuals and schematics to
be sure, but I believe this cable keeps the CPU from starting until
the FPP box signals its power good signal.
Anyway, if someone has something like a 2117F and the FPP box they
might also want some of these connectors to build a proper
interconnect cable. I think someone on the list recently got a 2117F
and FPP box from eBay. It might have come with the ribbon cables to
connect the boxes, but maybe not the power in/out interconnect cable.
-Glen