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Motorola 208A/B TNC...

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fchrist16
Posts: 309
Joined: Sun May 24, 2009 12:23 am
What radios do you own?: Spectra's, Jedi's & more

Motorola 208A/B TNC...

Postby fchrist16 » Fri Apr 13, 2018 11:50 am

Anyone have the manual and/or more info on this product besides what I've been told? I am trying to find the manual so I can research further as to what I can use it for/with.

It is a Motorola built for Universal Data Systems 208A/B Terminal Node Controller at 1200 baud.

https://www.dropbox.com/s/zhayp610nj8py ... 4.jpg?dl=0

Regards,

-Frank C.

fchrist16
Posts: 309
Joined: Sun May 24, 2009 12:23 am
What radios do you own?: Spectra's, Jedi's & more

Re: Motorola 208A/B TNC...

Postby fchrist16 » Tue Apr 17, 2018 7:22 am

Anyone have ideas...?

Regards,

-Frank C.

Karl NVW
Posts: 88
Joined: Wed Sep 03, 2003 7:13 am

Re: Motorola 208A/B TNC...

Postby Karl NVW » Tue Apr 17, 2018 1:09 pm

The UDS208 A/B was a 2400 baud synchronous landline modem, not a TNC and not 1200 baud. If you want a 1200b async modem that uses the 1200/2200 tone pair that is used with legacy VHF packet networks you should be looking instead for a model 202S or T. It's still not a TNC!
Karl - WA8NVW AFA5VB
SHARES + NCS

fchrist16
Posts: 309
Joined: Sun May 24, 2009 12:23 am
What radios do you own?: Spectra's, Jedi's & more

Re: Motorola 208A/B TNC...

Postby fchrist16 » Tue Apr 17, 2018 3:02 pm

Karl NVW wrote:The UDS208 A/B was a 2400 baud synchronous landline modem, not a TNC and not 1200 baud. If you want a 1200b async modem that uses the 1200/2200 tone pair that is used with legacy VHF packet networks you should be looking instead for a model 202S or T. It's still not a TNC!


Thank you for the correction. I was given that info from another radio tech. So what can I do with the UDS208 A/B? Got a manual laying around...?

Regards,

-Frank C.

Karl NVW
Posts: 88
Joined: Wed Sep 03, 2003 7:13 am

Re: Motorola 208A/B TNC...

Postby Karl NVW » Wed Apr 18, 2018 6:12 pm

No 208A/B manual in the library here for at least 20 years. In theory you could connect a 2400 baud remote device to its terminal over a 4-wire analog leased circuit, except that most phone companies no longer lease point-to-point conditioned copper pairs. But you might find a compatible modem in the Black Box catalog.
Karl - WA8NVW AFA5VB
SHARES + NCS

fchrist16
Posts: 309
Joined: Sun May 24, 2009 12:23 am
What radios do you own?: Spectra's, Jedi's & more

Re: Motorola 208A/B TNC...

Postby fchrist16 » Fri Apr 20, 2018 7:00 am

Alright thanks. I was looking to see if maybe there was something applicable I could use it for either in the ham bands or with my commercial gear.

Regards,

-Frank C.


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