Addcom Analog-Digital Converter COMMUNICATION 2

By enribar

Paragon (1128)

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11-03-2015, 14:38

Hello, just bought this cart (seems quite rare and unknown):
Addcom Analog-Digital Converter COMMUNICATION 2
What the use of it?

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By mars2000you

Enlighted (5970)

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11-03-2015, 14:46

I guess it was used in Japan with the first series of modems, when the analog signal coming from the phone was converted to a digital signal to be sent on the net. The contrary device was also required to receive the signals and re-convert them in analog form for the receiver's phone.

By enribar

Paragon (1128)

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11-03-2015, 15:03

very interesting thankyou! Do you think it could be used for other purposes, for ex. to digitalize audio?

By mars2000you

Enlighted (5970)

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11-03-2015, 15:34

No any idea, there are 5 channels on this cartridge, maybe 4 different inputs and 1 output (REF) ?

By Manuel

Ascended (18092)

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11-03-2015, 21:41

But phone lines are always analog... or which net do you mean?

By NYYRIKKI

Enlighted (5847)

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12-03-2015, 09:13

I don't think this is a modem, but I don't have any facts... With analog inputs Vref usually means "reference voltage" I would guess, it can be used to scale the 4 channels of analog inputs. Is this hardware only or is there some software inside? Maybe this is originally meant as some sort of oscilloscope replacement.

By NYYRIKKI

Enlighted (5847)

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12-03-2015, 09:54

enribar wrote:

very interesting thankyou! Do you think it could be used for other purposes, for ex. to digitalize audio?

To digitize audio, I would try something like:

... but you still need the software for that...

By SearEclair

Supporter (8)

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18-01-2016, 13:55