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…
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…
Synchronous vs Asynchronous cards
There are three main differences between our async and sync cards. The first is cost. Our asynchronous cards are very cost competitive. Our synchronous cards…
FAQ: What’s unique about the relays used on the SeaConnect 370?
The new Sealevel SeaConnect 370s incorporate innovative Form C electromechanical relays with gold-plated bifurcated contacts. These relays provide lower initial contact resistance and greater initial…