Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations TouchToneTommy on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Office "Busy" light 1

Status
Not open for further replies.

gbaughma

IS-IT--Management
Staff member
Nov 21, 2003
4,772
US
I've been given the task of figuring out how to wire up a light over the boss's door, so that when he's on the phone, the light is on. This way, people know he's on the phone, and don't walk into his office unnecessarily.

We have a "Classic" IPK with Dterm80's.

So, there's a couple of ways of approaching this....

1) Perhaps a magnetic reed sensor in the cradle, that completes a circuit when the handset is lifted.
2) I could glom onto the LED circuit for his extension, but I don't want to hack into a phone THAT much.
3) Perhaps something that senses voltage on the handset cord, which doesn't have any voltage until the phone goes offhook.
4) A programming change, perhaps to take a CO or SL port "off hook" (essentially closing a relay) when that phone goes off hook (I thought about a "hotline" thing, but that would just do dial-down and not allow regular use of the phone).
5) Plantronics makes some sort of hands-free device with an in-use accessory.



Just my 2¢

"What the captain doesn't realize is that we've secretly replaced his Dilithium Crystals with new Folger's Crystals."

--Greg
 
You can add an ADA-U to the bottom of the phone to provide a contact closure when off hook. We done this in cubicles so no one will enter when on the phone.
 
  • Thread starter
  • Moderator
  • #3
Nice! Have a *! I think something like that would work... just connect a low-voltage through the contacts to a light above the door.



Just my 2¢

"What the captain doesn't realize is that we've secretly replaced his Dilithium Crystals with new Folger's Crystals."

--Greg
 
  • Thread starter
  • Moderator
  • #4
OK, I got an AD(A)-R unit (Stock # 780104).

Anybody got a manual/installation guide for this thing? No instructions.

I'm looking on wedophones now, but not having much luck.



Just my 2¢

"What the captain doesn't realize is that we've secretly replaced his Dilithium Crystals with new Folger's Crystals."

--Greg
 
  • Thread starter
  • Moderator
  • #5
I think I found what I needed.

Inside are 9 terminals. T5 is open when the terminal is in use. T6 is common. T7 is closed when the terminal is in use.

I *think* the dip-switches are OK... but jeez, I wish that NEC would even send a WIRING GUIDE with their parts.

Even thus, I didn't find a manual for the AD(A)-R, but an older hardware manual for the AD(A)-U.



Just my 2¢

"What the captain doesn't realize is that we've secretly replaced his Dilithium Crystals with new Folger's Crystals."

--Greg
 
  • Thread starter
  • Moderator
  • #6
FOLLOW UP:

Worked perfectly. 12v supply to an LED light outside the door... go offhook on the phone, light comes on.

Success! :D

Thanks everyone for your ideas.


Just my 2¢

"What the captain doesn't realize is that we've secretly replaced his Dilithium Crystals with new Folger's Crystals."

--Greg
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top