|Doug's SxS Switch -- The Early Days|
|14 September -- Installed a rail on which to mount the Touch Tone converters and mounted the already-wired converter on it
and then wired in a second converter to the second line finder on the switch. The photo at the right shows the mounted & wired
converters. Now both switch paths have Touch Tone capability, even though the second path isn't completely working yet. There's
still only seven levels of the selector sleeve banks done.|
Got an email from a fellow switcher over the weekend saying he has the shaft spring for the older NE line finder I got a few weeks ago that is missing same. That should complete that finder, which at the moment is earmarked for the Portable Demo Switch Project, to be started after I get some more stuff done on this big switch.
25 September -- Lots of progress on the switch! The completed selector contact banks were bolted onto the switches. Temporary connections
to the connectors was made to the new bank wiring and tested -- it works! The switch can now support two simultaneous connections.
The cable bundles to the banks still need to be dressed and terminated properly, so in the photo at left you can see the wires hanging out the right
side of the switch.|
An interesting rack-mounted telephone, made by Allentel and pictured at the right, was discovered and purchased and mounted on the switch frame. It can be seen below the switches in the photo. The phone is basically a 1A2 multi-line telephone, with a speakerphone component and the capability of plugging in a standard telephone headset, or using the attached handset. I don't know if these were ever used in switch rooms, but it looks like it *should* be there!
|October 31 -- The cable wiring to the third plate of line & cutoff relays was completed this week and installed on the
switch yesterday. The wiring into the switch from the plate was done and now there are another 20 ports "live." There is,
however, a problem with the cutoff relay for station X79. The CO relay is out of adjustment will not pull in without
outside help. I attempted to adjust the relay and it worked without help for a little while but obviously the right adjustments haven't been
made as it will not pull in again unassisted.|
The photo at the left shows the three plates of L/CO installed. The cover on the newly installed one needs to be repainted so it isn't as nice looking as the first two. The black box just above the plates is the subset for the frame-mounted 211 "Spacesaver" set. The photo at right shows the rear sleeve termination panel as it exists at the moment. The punch blocks on the top are where the sleeves for the connectors (left two) and line finders (right two) terminate. The lower blocks are the sleeve and line terminations for the selectors, sleeves on the left two blocks, and lines on the right.
|26 November -- Not much progress on the switch this week, but a number of stations were wired to it. I have a small
collection of mostly WE 500 sets in various colors and they are displayed together in one place in my home. All of the phones in the display, pictured
at the right, are now connected to the step switch. The only one in the photo not connected is the multi line Stromberg-Carlson set
on the middle of the bottom shelf. The blue/green Princess phone is an early 701 model without its own internal bell so it shares a step
line with the green round button Trimline set on the top shelf. The white set on the right on the middle shelf is a two-line ITT set and is wired to its
own line, plus the line of the beige NT set two shelves below it on line #2.