Parity is actually an extra bit that’s added to every data word. It can detect a one bit error within that data or byte Checksum…
Raw Mode or Bit-Shift Mode
Raw mode is actually the simplest form of communication. The card takes every bit of data that’s received from the communication line, groups it into…
Synchronous Data Link Control (SDLC) Vs. High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC) takes Synchronous Data Link Control (SDLC) one step further. HDLC defines the content of the control byte, allowing the transmitter…
Synchronous Data Link Control (SDLC)
Synchronous Data Link Control, also known as SDLC, is a protocol that can be used for talking between computers or between computer and a remote…
FAQ: Blue Iris
Sealevel’s SeaI/O and eI/O devices are frequently used in conjunction with Blue Iris Video Management Software. Many customers have been able to successfully utilize this…
Bisynchronous communications
Bisynchronous communications have a 16-bit synchronization sequence at the beginning of the message. The rest of the message is formatted using characters like start of…
Monosynchronus Communications
Monosync communications, as the name implies, has one sync character, 1 8-bit scene character.The problem with this is the fact that an 8-bit sequence can…
Sync Serial Cards: 5104 vs 5102
The 5104 is our highest speed sync card. For high-speed communications, it is the perfect solution. Unfortunately, if you’re using async mode it’s not necessarily…
Asynchronous vs Isochronous Communications
Asynchronous communication is a timed communication standard. Each bit has a particular width and time that it needs to be stable. Isochronous communication does not…