29 Apr
2010
29 Apr
'10
11:52 p.m.
I have 2 different loopback? plugs... both made by T-BAR
565-980-2 is DB25M with wiring (on the visible circuit side):
2-3
4-5
6-20
8-23
11-15
12-21
14-16
565-980-3 is DB25F with wiring (on the visible circuit side):
13-19-22
17-24
There are traces on the top of the PCB as well, but the DB25
connector is covering them, so they'd have to be discovered via
a multimeter....
I haven't found any t-bar information by those #s on line....
And they don't match a few different RS232 loopback plug
wiring diagrams I found online...
Anyone have a clue what these are ?
Thanks,
-- Curt