On 3/16/2017 11:38 AM, m.roth at 5-cent.us wrote: > Thanks, but no. IP cameras are explicitly right out. I said "secure rooms" > (no, no, these are not server rooms, "Server Room" requires serious > paperwork, etc....) but they*are* secure. We want no one able to connect > but us. And we've already got some perfectly good cameras that run BNC. > The reason I'm back to looking is the BT878 cards we have work fine... on > older, non-Dell servers. Firmware updates? What are those? A few years > ago, I tried tracking down the manufacturer... who got sold, and sold > again, and IIRC, sold again. I tried contacting the final owner, and got > no answer whatever. > > So, we were looking for a newer capture card. These Blackmagic are PCIe; I > think the BT878's are PCI, or maybe PCI-x, and personally, I think there's > an issue in the chip Dell uses on their m/b to convert - it's a TI chip. > > Anyway, thanks for the thought. > > Oh, right... and we would not want a camera that we can't update the > firmware, and might be sending info back to China, or maybe it's being > used in a DDoS attack via the IoT.... thats why you would put them on an isolated network attached only to a dedicated PoE switch, and a 2nd NIC on your video server. but whatever. these BNC cameras, are they SD (480i) analog composite video or HD/SD cameras with digital single-link SDI ? that blackmagic card is for SDI digital cameras. https://www.blackmagicdesign.com/products/decklink/techspecs/W-DLK-31 nothing there about NTSC/PAL Composite analog input. -- john r pierce, recycling bits in santa cruz