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 device. It’s very simple, but…
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Parity, Checksum, and Cyclic Redundancy Check (CRC)
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 is a sum all of…
How do I compile SeaMAX example applications?
…open in your default browser. Click on “Example Code & Instructions” under the Getting Started heading. Be sure to also read the “Integrating SeaMAX into Your Project” for a complete…
Can Sealevel synchronous serial expansion boards and Relio R2 Sync Server communicate using SDLC or HDLC-derived protocols?
Sealevel synchronous serial expansion boards and the Relio R2 sync server have an SDLC mode that implements many low-level behaviors of SDLC such as frame opening and closing flags,…
How do SeaLINK Ethernet serial servers transmit modem control signals in serial tunneling mode?
…sends the RFC-2217 command to set DTR ON. When a SeaLINK device sees both the DSR and DCD inputs are OFF, it sends the RFC-2217 command to set DTR OFF….
What are the differences between USB 2.0 and USB 3.2?
Universal Serial Bus (USB) is a set of industry-standard specifications for cables, connectors, and protocols for connection, communication, and power supply. The two most common generations are USB 2.0 and…
Datasheet: Relio R1 Compact, Industrial DIN Rail Computer
The Relio R1 Compact, Solid-State, Wide-Temperature, Industrial DIN Rail Computer datasheet in PDF format. Sealevel-R1-IOConfig-SL9311-E22-1…
What is the maximum distance I can communicate using a standard RS-232 serial cable?
Practically, it depends on your application and environment. The RS-232 standard specifies transmitting data up to 50 feet at 9600 bits per second (bps)….
What are some common concerns when installing serial cables?
Make sure connections are clean and secure and thumbscrews are tightened If running long distances, choose a low capacitance cable Avoid running communication cables near AC power lines, fluorescent lights,…