Old alarm panel at a Macys department store, still functional i believe ?
I understand the simplex panel, ( its coded via a code sheet to right of panel) 1 bell = zone 1, 2 bells is zone 2, 3 bells is zone 3 ( meaning first floor, 2nd floor or 3rd floor) and 4 bells is general alarm.
I dont know what general alarm means on the right panel?
Also, the panel to the left, I understand that Zone 4 means the simplex panel is active? What about the other three? Likely smoke or heats? My question is, since there are simplex bells in this building, does the left panel also trip the right panel making the “General alarm” ?
I’d assume its all a local alarm only, but what I dont know is how either of these two panels speak to each other.
Any help would be great, especially since theres a trouble light on at the top.
First, HUGE PICTURE! Please resize?
I know for one thing that that is one complete panel. The one on the right is a zone indicator and the left is the actual buttons of the panel.
I believe this is a 2120 series? Looks like one at least.
Can someone confirm this?
The panel on the left in the big picture is unknown to me. Can’t help with that one.
The panel on the right is a Simplex annunciator. Probably there is a 4245, 4246, or 4247 in an electrical room or boiler room somewhere in the building.
The Simplex panel could report to the brand X panel in several ways. Some of the older panels had auxiliary relay contacts available in the panel. Another way is a series relay in the signal circuit. That is a relay with a coil impedance that matches an old series horn or chime so can be added to a series signal circuit. The contacts would be connected to the brand X panel zone.
Anyone who has ever seen a 2120 would never confuse it with the picture above. Below is a picture of a 2120 BMUX which is the head end CPU of a 2120 system.
The one on the left looks a bit like a 4210. I have seen one in person before except it was gutted and being used as a terminal cabinet in a new 4100U system… however all the lamps were left on the front of the door.
Looks like the unit on the left is used to monitor the building’s air handling units and/or control and shut them down in case of fire. It could contain the larger relays that could be needed to facilitate shutdown of the larger circuits.
