dadkins
Can you do Blu?
Premium,MVM
join:2003-09-26
Hercules, CA
 ·Comcast
1 edit | reply to dslwanter
Re: Well good.
Uhh, I have Comcast Digital Phone Service, it is NOT VoIP!
I've had it for 10? 12? years now...
»www.comcast.com/Support/Corp411/···9_0.html
*NOT* VoIP.
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No Firefox here, move along! |
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entropy1
Premium
join:2002-09-25 | Haha! That's awesome.  |
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Jim Gurd
Premium
join:2000-07-08
Plymouth, MI
·Comcast
| reply to dadkins
Around here Comcast uses a Western Electric 5ESS digital switch for handling calls. They have a battery backup that lasts 8 to 10 hours according to their website. I'm not sure where the battery is though. Is it on the homeowner's property or in the CO itself? Does anybody know?
»www.telcodata.us/switchinfo.html···esults=1 |
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Corvus
Flaming Tards Since 2003
Premium,VIP
join:2003-11-26
| said by Jim Gurd  :Around here Comcast uses a Western Electric 5ESS digital switch for handling calls. They have a battery backup that lasts 8 to 10 hours according to their website. I'm not sure where the battery is though. Is it on the homeowner's property or in the CO itself? Does anybody know? » www.telcodata.us/switchinfo.html···esults=1 Humm...a 5ESS Lucent is switch (also used by CLEC and ILEC) in the CO itself, on the ISP end. It's usually protected from power outage using huge generators that can run without interruption if they are supplied in fuel. Here's a picture:
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demagogue \DEM-uh-gog\, noun: 1. A leader who obtains power by means of impassioned appeals to the emotions and prejudices of the populace. 2. A leader of the common people in ancient times |
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cptmiles
Premium
join:2004-04-22
Swayzee, IN
| What a pretty picture. I have a CO that looks just like it. As far as power goes, Central Offices that are categorized by the FCC as Class 4/5 have several powering and environmental codes to conform to. Within the CO environment controls have very specific ranges. They are also sensitive enough that in most COs cell phones are not permitted. They are powered by batteries 100% of the time to control power fluctuations. These batteries are huge and are constantly kept charged by traditional power but are backed up by at least 1 generator. In our case we have a diesel generator and a natural gas generator backup. The 8 to 10 hours that is being referred to is the battery backup units in the field. In order to take the central office funcionality closer to the customer (reduce loop lengths) the "Node" technology was developed. These nodes traditionally are powered via traditional power and backed up by a battery pack. Most solid telephone companies that use this technology have multiple mobil generators and a disaster plan to keep the batteries in these nodes charged in case of a long power outage. |
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Jim Gurd
Premium
join:2000-07-08
Plymouth, MI
·Comcast
| reply to Corvus
said by Corvus : Humm...a 5ESS Lucent is switch (also used by CLEC and ILEC) in the CO itself, on the ISP end. It's usually protected from power outage using huge generators that can run without interruption if they are supplied in fuel. Yes, you're right that it is a Lucent switch. Western Electric is the old Bell System name.
My question was about how cable telephone service provides power to the phone itself in the event of a power failure. On a conventional POTS line the CO provides DC voltage over the copper wires. Because cable uses fiber which doesn't conduct electricity there must be an alternate power source for the phone itself.
Now I'm just guessing at this point but there must be some device which connects the fiber cable to the copper in your house in order to power the phone and convert the analog signals to digital so it can be passed over the fiber cable. I assume it uses regular AC power and has a battery backup in the event of a power failure. This is a separate battery from what would be used by the central office on the actual switch itself. |
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dadkins
Can you do Blu?
Premium,MVM
join:2003-09-26
Hercules, CA
·Comcast
| Like this? Power comes from POTS line, phone goes out over coax.
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No Firefox here, move along! |
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Corvus
Flaming Tards Since 2003
Premium,VIP
join:2003-11-26
| reply to Jim Gurd
said by Jim Gurd :Now I'm just guessing at this point but there must be some device which connects the fiber cable to the copper in your house in order to power the phone and convert the analog signals to digital so it can be passed over the fiber cable. I assume it uses regular AC power and has a battery backup in the event of a power failure. This is a separate battery from what would be used by the central office on the actual switch itself. We (the cable company I work for) use backup units in poles to protect important devices such as optical transceivers and amplifiers.
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demagogue \DEM-uh-gog\, noun: 1. A leader who obtains power by means of impassioned appeals to the emotions and prejudices of the populace. 2. A leader of the common people in ancient times |
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hedyd4u
Premium
join:2003-12-16
Schenectady, NY | reply to dadkins
Maybe Time Warner should get Comcast to help them I have friends who use Time Warner Digital phones and they have static that I find unbearable. |
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