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Do you have directions. Trying to set my timers. I have this!!

Nice overview, thanks. Can this panel be upgraded with a cellular communicator so I can ditch my landline?

I may be deinstalling a Z1100 system soon. Would you be interested in a keypad or anything else?

One of these receivers costs over $5000...but then they may only make a handful of them a year... The trend nowadays seems to be away from hardware like this to software based IP receivers which take messages either over the Internet or a VoIP gateway.

What kind of modem is it? BTW your website is down.

Have you published the program? Very curious.

I wonder if someone just put that E1 card in there to fill a slot? E1 is something which you would not use in the US or Canada unless you had something which only supported E1 and then you would only use it on a short-haul link as it is illegal to use on a regulated carrier.

Interesting that you need an L-band upconverter which supports a 44MHz input; most of the ones I've seen need a higher frequency input than that. I've seen a few cards for sale recently for that particular CMTS which have built-in downstream upconverters and they aren't terribly expensive.

Is it possibly using the LIN protocol? It's a single-wire serial interface.

nice

20:55 was what I needed!

Pretty cool. I always wanted to implement a CMTS using GNU Radio and a HackRF but i never found even the time to start researching all the protocols involved. I mean DOCSYS and DVB-C itself are big junky standards.

Please, how can we receive a call from a Honeywell Galaxy Dimension 48 without using a central station or a central station receiver?

When the electricity went out my alarm which is the one you are showing started non stop beeping. How do you stop it from beeping when the electricity goes out? I tried everything it seemed.

This is so target 2004

>8((((((((

This is such a cool system! How did you program the controller itself? Also, did you just find the pieces you needed and put together a the whole cabinet or was it as a whole lot?

Hi. Great work. Could provide more details?

Hi, love you project, could you provide mor information about ?

That was useless

When did these systems with these panels come out I can’t find a date when they were made

Those trouble and delay entry tones are neat IMO (I'm a dork, I know haha)

These videos are awesome! You and clabretro are both relatively new to me, but i am loving the content! Currently i am on both gpon and xgspon, those would be some cool technologies to look into as well!

Super cool! Can’t wait to see more!

rad

Sorry I mean my DSC PC-2500 keypad has no light at all. What seems to be the problem ? Please advice. Battery supply is good.

I got 2 of them for free from a hamfest with 3 batteries and no charger or programming cable.

How I miss the days of hacking cable modems to get free internet. Someone at the company decided to leave the uart open, and there were mac address sharing groups where you'd scan your local area, and share that with people in other areas near you (as you'd have conflicting macs on the same network). Then just open up Putty, change the mac address and tell it what config file to download, and free internet! Docsis3 and encrypted configs killed that. 😢😢

I worked with this system in Brazil, in the Militar Police, São Paulo in 1999. Tanks for reminding me of this.

Here via clabretro.

Hey buddy, what are you trying to do here? start DOCSIS ISP in a third-world country using decommissioned hardware from first-world countries. Great content guy.

16:59 What I would start with and I didn't really hear you say if you did this or not... You do have a domain listed in the config file yes.. However, did you set the A records from your domain hosting provider to your homes public IP? then open ports and forward them to the CMTS local ip from your home router / ISP modem. This could also be the cause for a few issues. The modems are trying to ping to a domain, and continue to be left with no response to download the config from the CMTS, which would also not be helpful trying to obtain a public ip from the CMTS network. That is where I would start with hopefully thats a fix for you.

Do you have any info about pre-DOCSIS cable modems? I remember the first modem I had in the late 90s was a surfboard but it was a flat style, and remember we had to upgrade to a DOCSIS compatible one

15:15 Excuse me, what's that last saved putty connection?

Great work, as is your DSLAM video. Will you be doing fiber GPON next?

dunno about older versions of docsis wrt: the date, but certificates can't be verified without the clock being set; the 'new' privacy & authentication modes use public key stuff to identify specific devices. mac cloning would work on some really old networks but i think even then they had other ways to control access w/ docsis 1.0

Wow. I work as a systems engineer for a cable ISP. Your explanation of the basics of an RF plant and the CM registration process are spot-on! Definitely subscribing.

Thank you, good demo. I got my CCNP back in the early 2000s and I was surprised that CMTS snd DOCSIS were barely covered. The study material and exams spent a lot of time beating on ISDN and ISO networking. Most of the exams were pretty easy, but I saved routing for last. On all the exams up to that point, they would say “Congratulations, you passed your exam,” at the end. The routing exam had two configuration simulations and one was buggy so I had to click done and move on. Time ran out as I was answering the last question. At the end, all it said was “you completed this exam.” I assumed I flunked and walked away dejected, but the lady in charge came running, “Don’t you want your certificate?” I never worked in a large enough environment mor had a complex enough home lab that I believed I had enough hands-on experience to get through the lab based part CCIE exam. I was able to do all the practice I needed for the CCNP using a 24 port Catalyst switch and a 1711 security router. My employer was satisfied with CCNP so I left it at that.

Hey dude, just saw your channel! Love your style of video dude. Subscribed!

SB5101 is GOLD worth its weight in GOLD, ok comcast and give me that speedteirextreme2 config file for maximum DOCSIS 2.0 speed LOL. tah dah operational! a little putty magic here some telnet there and we'll have things setup. ""A little sign in here, touch of WiFi there"

Wow, never thought I'd see a working UBR 72xx again. I remember back in the day when we upgraded to VXR chassis' and had US/DS cards with built in upconverters (MC28u if memory serves?) Anyway, I wonder if your downstream speed issue has something to do with the DS freq you're using. I have no idea how the tuner in a modem will behave if your center freq isn't aligned to a proper EIA 6mhz wide channel. Try moving to a properly aligned channel like 633mhz, 639, 645, etc... For the upstream, if I remember correctly the default config is only a 1.6mhz wide channel at QPSK modulation, you need to configure 3.2mhz wide channel and a QAM16 modulation profile in order to get the max speed that the hardware can do which is in the neighborhood of 10Mbps. 2.5Mbps sounds about right for 1.6/QPSK. Going to 3.2 should get you 5Mbps and then QAM16 would double you again to 10Mbps. I probably have some old configs stashed away somewhere, let me know if you need any help and I can dig something out of the archives.

18:40 'Next-Server' is the IP address of your TFTP server hosting the configuration files. As you said the UBR has it's own built in, so you'll just be using that.

LOL, DOCSIS was not just used over coax. We used to feed hundreds of clients on a single CMTS into a radio system running 3.6GHz band and up the mast to an Omni antenna to subcriber radios, back down to power injector and into Motorla SB modems.

Awesome. I've been wanting to get into a setup like this, I appreciate you laying it all out in an easy to understand way!

Back in the day, you could win a race condition by hosting your own TFTP server over the ethernet port, offer up an edited config file and set a much higher upload/download speed than would normally be in the config file. Oh the good ole days (2000 & 2001)

If you have old coax in your house but are no longer using it for internet or TV, there are devices called MOCA adapters that let you run 2.5Gbit ethernet connections across the COAX. Apparently they can also coincide with TV and Cable but I don't know if you get reduced speed or not. Might be a good way to get a wired connection across a house without having to go into the attic and run ethernet.

is that a Motorola surf board.. have not seen one of those since 2000

The DHCP more than likely has to be an authoratative DHCP server.

Can you setup authentication of your modem by MAC or some other hardware identification?