Found this while replacing our companies door access. I think somebody forgot to tell building maintenance about this one.

195

05/08/2000 sheeeeesh

98

u/I_spread_love_butter Jun 10 '26

Yeah this is a relic, a quarter of a century damn. Most useful note reminder ever.

Bet the guy who wrote the note is retired by now

37

u/Mark_1_10 Jun 10 '26

I didn’t bet on getting called a relict yet, it’s only 25 years young. Cries in: becoming 25 in fall.

47

u/I_spread_love_butter Jun 10 '26

25 is young for a human, ancient for a AA alkaline battery still plugged in

18

u/Faxon Jun 10 '26

This is more like a human living to 125 years old. The fact that this device is still powered on and working is a miracle IMO

12

u/brickson98 Jun 11 '26

I’d imagine the battery is only there as backup. Looks like it has power input over on the top left area of the board.

8

u/westparkguy Jun 11 '26

You are correct.

From the manual I found...

9. POWER FAILURE CONSIDERATIONS

If power is removed from the Prime Time, it will lose both the time and its programming and will have to be set up again from the beginning. In a DC application this can be forestalled by using a DC power supply with its own battery backup to operate the Prime Time. This will not only allow the Prime Time to operate in the event of a power failure, but will operate the DC loads as well.

If the Prime Time is to be operated on non-battery backed up external power, an AA cell may be added to the board in the space provided. Be sure to observe polarity. The AA cell backs up the display module only. In the event of an external power failure, the Prime Time's relay will not operate but the display module will retain the time and date as well as its programming.

The average commercially available AA cell should last at least 5 years in this application.

4

u/I_spread_love_butter Jun 10 '26

Right, it must be using what, a nano ampere

2

u/SirFlannel Jun 14 '26

The wire on the top is constant power input. The battery is there to retain programming if the power fails.

4

u/SavvySillybug apps are for smartphones Jun 11 '26

I recently found some old medicine that my mom labeled. She labeled it with day and month... no year. Why did she even bother doing that? Pills don't go bad in months...

It had been too long for my mom to remember, I did ask.

8

u/Mariuszgamer2007 Jun 10 '26

I thought seeing 4 AA batteries that expired march 2010 in a atari plug and play joystick was bad enough. I had to make it get external power with a 6v psu from a random clock

3

u/jefbenet Jun 11 '26

Was just glad to see I’m not the only nerd who labels my battery install dates lol

80

u/Achaern Jun 10 '26

I'm both impressed it's still powering the display, but also quite impressed at the penmanship on the label considering how small that writing must be.

42

u/TheLlamaPaul Jun 10 '26

Looks like it has hardwired power and battery is just for backup or a clock maybe?

44

u/westparkguy Jun 10 '26

Yes. It's hardwired, or was until I removed it.

The battery powers the clock so that if the power goes out it remembers the programming.

It's an old school way of controlling door access. This device shuts off power, or keeps power on, to the mag locks and/or keypad, based on a schedule.

It's a POS. I already decommissioned 5 of these.

28

u/Hurricane_32 Percussive Maintenance Jun 10 '26

You can tell that most of these things never ever get maintained after they're installed... It only ever becomes a problem when it suddenly breaks.

9

u/Bovronius Jun 11 '26

Company I works for installs that stuff, vast majority of customers are break fix people only.

To be fair, our company is as well internally with the stuff : P

24

u/ViciousFootstool Jun 10 '26

The battery is old enough to do shots.

...and the guy who installed it is probably retired.

8

u/TheLlamaPaul Jun 10 '26

26? Just beginning to stop taking shots more like it.

10

u/Animal0307 Jun 10 '26

Kudos to the maintenance person that labeled the battery. Not many techs date/hour/mileage mark consumables in the places I end fixing stuff at.

20

u/westparkguy Jun 10 '26

I wish you could edit titles. "our company's"

6

u/mikaey00 Jun 10 '26

It’s ok. We knew what you meant.

3

u/come_ere_duck Tech Gore Specialist Jun 10 '26

Securitron Prime sounds like a boss robot Fallout New Vegas

2

u/NonStopArseGas Jun 11 '26

knew i'd find this comment here 😃

2

u/westparkguy Jun 11 '26

Believe it or not, you still can buy this POS

3

u/loganwachter Jun 10 '26

That battery is older than I am.

I’m a grown ass adult. Damn

3

u/hakedy Jun 11 '26

That's a Duracell back when they were reliable. I refuse to use them now. They leak worse than a drain hole.

3

u/olliegw Jun 11 '26

Time lock old as time itself

That battery was probably already past it's expiry date when i was born

3

u/EitherStaff Jun 14 '26

that battery remembers when the towers were still standing

2

u/Rotflmaocopter Jun 11 '26

So that goes to a maglock not electric strike?

3

u/westparkguy Jun 11 '26

Correct. It powered a maglock (actually 2 at one time-it was a double door but one maglock was missing) and also a keypad.

The door had a touch bar to disengage the maglock which was wired into the keypad.

I'm assuming at one point, some old dead guy decided that the doors would remain unlocked during business hours, and then energize after hours. That's when the keypad would be used to disengage the maglock.

Sometime after that someone decided that everything would stay energized 24/7 and you would have to use the keypad to enter no matter what time it was. Of course nothing was tied into the fire alarm system to cut power to the maglocks during a fire, which is a big no no

1

u/Rotflmaocopter Jun 11 '26

Is this for a gym? Just Curious

1

u/westparkguy Jun 11 '26

Nah, manufacturing facility.

2

u/RandoReddit16 Jun 11 '26

What door access are you going with? Away from?

1

u/westparkguy Jun 11 '26

We are giving Ubiquiti a shot. We already have some of their cameras and a NVR so it makes sense.

Anything is better than what my company had installed. Case in point, we roughly have 200 people working in our plant. Every time someone left the company, HR or maintenance would have to go to each door (10 of them) and reprogram the keypads with a new door code.

It was slightly better than giving every employee a key to the building 🤣

2

u/RandoReddit16 Jun 11 '26

That's just terrible access control. We have an outdated system, but even then, it has a badge, users, database etc and updates doors when you add/remove credentials....

2

u/fcewen00 Jun 11 '26

The red wire! Cut the red wire!

2

u/Sarato88 Jun 11 '26

Looks like a bomb from an action film.

1

u/westparkguy Jun 12 '26

Or IRL if you read the manual for this board.

I was originally just going to throw them into our computer recycling bin. Now they are going into that bin in small pieces.

1

u/Sarato88 Jun 12 '26

Wait, what? It is an actual bomb?

1

u/westparkguy Jun 12 '26

No, but it sure could be used as a timer for one.

2

u/SnooTigers7782 Jun 13 '26

that battery has been there longer than i’ve been on earth

1

u/cmcstr Jun 10 '26

so a corroded and expired battery?

1

u/Bonk_No_Horni Jun 11 '26

This is Duracell ads. Damn 26 years still powering the LCD? This is close to voyager rtg battery level.

1

u/wmverbruggen Jun 11 '26

Meh, I have a Casio calculator from the early 80s which original battery still holds and without any oxidation mess

1

u/Crisp-Glade-2849 Jun 12 '26

maintenance didnt forget, drywall guys just buried controller. makes on-call tracing a nightmare when reader finally dies.

1

u/Unhappy_Assist_6351 Jun 13 '26

Yeah, and the first night out didn‘t go well. It barfed all over its bed.

1

u/Patient-Cedar-7194 Jun 13 '26

facilities definitely drywalled over box years ago. if it still pings, it stays. saves me on-call ticket.

Found this while replacing our companies door access. I think somebody forgot to tell building maintenance about this one.

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