@Dashrender said in POTS line replacement:
@scottalanmiller said in POTS line replacement:
@Pete-S said in POTS line replacement:
@pmoncho said in POTS line replacement:
@Pete-S said in POTS line replacement:
@pmoncho said in POTS line replacement:
We also have a call into our Security/Fire Alarm company on the costs of a replacement alarm system is and if it can work over cellular. We will then see which will have the best ROI depending on years of service.
It's highly unlikely that you need to replace the alarm system, as most commercial security systems can be expanded with different modules. Moving from POTS to IP or cellular is very common.
It's also very possible that your alarm system will not work over your AT&T ATA (POTS emulation). Some alarm systems don't use the same signaling as a modem or fax would.
I found the manual online and this is the section describing the transmitter itself.
"Digital Alarm Communicator/Transmitter
Two modular phone jacks allow easy connection to telephone lines. Modular jacks are labeled PH1 for Primary Phone Line and PH2 for
Secondary Phone Line. Two telephone line active red LEDs are provided as well as a green Kissoff LED. The integral digital communicator provides the following functions:
• Line Seizure: takes control of the phone lines disconnecting any premises phones
• Off/On Hook: performs on and off-hook status to the phone lines
• Listen for dial tone: 440 Hz tone typical in most networks
• Dialing the Central Station(s) number: default is Touch-Tone, programmable to rotary
• For tone burst or touchtone type formats: discern proper Ack and Kissoff tone(s). The frequency and time duration of the tone(s)
varies with the transmission format. The control panel will adjust accordingly.
• Communicate in the following formats:
Ademco Contact ID
SIA-DCS-8
SIA-DCS-20"With regards to signaling, this is the only thing that stuck out to me.
It has for sure more capability than your typical ATA. For instance I've never seen line seizure, off/on hook and rotary dialing. It's likely that they use a specific codec optimized for tones and not talk as well.
Yeah, never seen line seizure either.
Odd, I've definitely seen/heard of this before.
I believe the line seizure in the Fire Alarm is to knock off any device currently using the line to send alert signal in case of a fire.