That's a pretty serious modem, not sure what the sound capabilities of it are though.

It looks like a combo modem + soundcard to me, the onboard speaker is an easy tell for modems. The four 3.5mm jacks would be for the soundcard portion. It reminds me of a similar Aztek combo card I have.

Cosmic wrote on 2024-12-06, 15:13:

It looks like a combo modem + soundcard to me, the onboard speaker is an easy tell for modems. The four 3.5mm jacks would be for the soundcard portion. It reminds me of a similar Aztek combo card I have.

Yeah I have a few of the Aztech cards and other sound card modem combo cards as well. I've never seen any of them with intel chips though its usually all Rockwell stuff. Did Intel ever make dial up modems? Could this possibly be a sound card with ethernet or something?

I don't think this has anything to do with Intel the company, but rather the INTEL markings on the card are indicating it's some sort of prototype. The uPD65658 chip is made by NEC, it's a programmable ASIC (basically an early FPGA).

jmarsh wrote on 2024-12-06, 16:27:

I don't think this has anything to do with Intel the company, but rather the INTEL markings on the card are indicating it's some sort of prototype. The uPD65658 chip is made by NEC, it's a programmable ASIC (basically an early FPGA).

Good eye. I assume getting drivers to work with this thing would be a nightmare.

It is a gate array but not in the sense how a FPGA is. NEC, Fujitsu, Toshiba and several others offered these gate array products where the transistors/logic cells(gates) are already laid but the metal layers are not present to make the connections between them. Sometimes there's also RAM and even analog features. Customer can make their own connections among those gates and realize designs within the limits of the gate array chip and get a product that gets to the market sooner but there's no programmability here, they're manufactured with their logic and it cannot change. The line above the µPD65658 is the customer code to differentiate it from all the other designs using same family gate arrays. A lot of hardware uses these types of gate arrays to realize their functions, it definitely cost less than making an actual ASIC.

Most likely an ancient modem/teleconference thing for when the CPUs were too slow to decompress audio and/or stamp-sized video 🤣

keropi wrote on 2024-12-06, 17:58:

Most likely an ancient modem/teleconference thing for when the CPUs were too slow to decompress audio and/or stamp-sized video 🤣

That is an interesting thought, I wish they included a picture of the I/O.

I found a reference for it's FCC ID : https://web.archive.org/web/20211020072732/ht … ID/EJMPCIS95XX/

Equipment ISDN Interface Card

Why hasn't anyone looked up the FCCID yet ??

https://fccid.io/EJMPCIS95XX
Intel ISDN Interface Card PCIS95XX FCC ID EJMPCIS95XX (copied from google because the fccid.io site doesn't want to respond here.)

weedeewee wrote on 2024-12-06, 18:45:

Why hasn't anyone looked up the FCCID yet ??

Because the fcc website appears to be on its last legs and keeps erroring out.

keropi wrote on 2024-12-06, 18:43:

I found a reference for it's FCC ID : https://web.archive.org/web/20211020072732/ht … ID/EJMPCIS95XX/

Equipment ISDN Interface Card

I found another listing for one on ebay that has a picture of the rear of the card. Straight up looks like an ISDN/sound card combo which I've never seen before.

I would put soundcard in quotes - remember the PCI "voice modems" that also had audio jacks? it is probably the same thing just more ancient, I bet the Line in-out jacks are just there to mix sound with the system's main soundcard

It's part of the Intel® ProShare® Conferencing Video System 200

642746-xxx matches 642746-001 on the board.

https://web.archive.org/web/20000815090238/ht … re/id_board.htm

keropi wrote on 2024-12-06, 19:25:

I would put soundcard in quotes - remember the PCI "voice modems" that also had audio jacks? it is probably the same thing just more ancient, I bet the Line in-out jacks are just there to mix sound with the system's main soundcard

True I have some US Robotics ISA modems with that same feature, but this does have a CS4215 which is an actual codec/DAC chip which those usually don't have.

darry wrote on 2024-12-06, 19:41:

It's part of the Intel® ProShare® Conferencing Video System 200

642746-xxx matches 642746-001 on the board.

https://web.archive.org/web/20000815090238/ht … re/id_board.htm

Thank you for your detective work! Seems like a futuristic product for 1995 especially if you were expected to use it outside of an internal network. I wonder how the quality was? If it wasn't $50 on ebay I might be temped to screw around with it if I could find the software.

Well, while the mystery has already been solved, I found yet another auction with just as little info, but you can make out the components a bit better. And the markings on the bracket too. Also, I noticed that unlike the other two this one seems to have all the gold fingers on the edge connectors - revised board?