Relays + multi channel power supply install

This is the Multi channel power supply and relays that I have installed in my employers office.

DC power supply,
providing power for the cameras
and relays. 

Relays, power supply, and ATA

SPA 112 on top, provides dial tone for door phones.
RC2-A Relay activates door latches from DTMF
Enforcer 4 channel wireless receiver for FOB keychains 

Cisco / Linksys recently replaced the SPA 2102 and PAP2 devices with the SPA 112 devices. Installed is an SPA 112 which provides dial tone and a hot dial for the door phones. The dial tone from this device goes into the RC2A relay just below, and then to the E20B door phone (not shown). 

The RC2A is a DTMF activated relay. When someone presses the button on the E20B door phone the SPA 112 will hotdial the extension group for whatever phones are in the door phone hunt group. When someone answers the phone, they can then dial the programmable code that is set on the RC2A relay to activate the relay and "buzz" the door from their phone.

The Enforcer 4 channel wireless receiver is a wireless 4 channel relay that you can use with programmable keychains to activate a relay. In this application it is connected to door latches to "buzz" the doors open with a FOB keychain, similar to one used for a car alarm.

Since this image was taken an additional wireless receiver was installed to control the roll down gates so that the gate could be opened and closed with the push of a button.

Abandon ATF / law enforcement network closet.

Found this network room rather interesting. One of my customers moved into an office where the ATF and other government law enforcement agencies once occupied. The racks and most of the network equipment was ripped out, but there was still some T1 boxes and various wiring that was labeled with different law enforcement agencies.

This network room is now the network room for my customer. Any markings or labeling from any law enforcement agency was left there from when those agencies occupied this office space. To the best of my knowledge there is nothing in these images that would compromise any investigations these agencies may have had, or will have in the past or future. I believe that since this is how the office was left after they moved out from this office, that they have taken all precautions to safeguard any sensitive information, and I believe that posting these images are within my legal rights.

Bla, bla, bla, normally I only post images of networks that I have worked on, but I found this rather interesting. How often do you get to work in a network that was previously used for law enforcement. I apologize for my paranoid disclaimer above, but would rather be cautious than anything else. 

I did not remove anything from this location, nor are there any other images of this network that are not posted below.

re-registered my domain name

The domain name bill was overlooked and past due, so the site was down unless you reached it via nyphonejacks.blogspot.com all is good now at least for the next year.

Compare over 70 different phone systems

I just received an email from one of the mailing lists that I am on. This website has compiled an excel spreadsheet to compare the features of over 70 different phone systems. If you are in the market for a phone system this may be a decent starting point, I just gave it a quick once over so I can not guarantee the accuracy of the information contained in, nor did i spend much time to determine if it tried steer your purchase towards something that the website is selling, but nonetheless I felt that I should share it with my readers. It can be viewed here: http://www.solpub.com/Offers/ResourceRegInput.aspx?nuosid=110456748&jid=0&spoid=1319 however you will be required to provide contact information such as your email address to obtain a link to the actual file.