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Joined: May 2007
Posts: 5,058 Likes: 5
Moderator-1A2, Cabling
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Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,058 Likes: 5 |
This was actually something we did years ago for someone. Most of the house was wired with 25 pair and had 1A2 sets, but some locations only had 6 pair. (They were two line 500 type sets - I forget the number - 502 maybe?, but they only picked up the two dial tone lines.) Rewiring those locations was problematic and would have caused much expense in the house (a very, very fancy place.)
We rewired those sets to the dial Intercom only and then rewired the DICM so that when you dialed "9" you closed a relay and picked up line 1. Dialing "8" picked up line 2.
As I recall, we used the latching contact in the ICM to hold a 17B (DPDT) in place.
Sam
"Where are we going and why are we in this hand basket?"
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