Sealevel SeaMAC software is used to enable Linux support for products which feature the Zilog® Z85230 Enhanced Serial Communications Controller (ESCC). Our Route56 software package…
How can I test to see if data is going through my serial tunnel?
A serial tunnel is formed by two Ethernet serial servers that transmit data received by the local serial port through a TCP/IP connection out…
When should I use the RFC 2217 mode of my SeaLINK Ethernet serial server?
RFC 2217 is a popular protocol for accessing serial ports over a network. A server that uses RFC 2217 allows its serial port to…
How do I configure a synchronous serial PCIe or PCI card for loopback testing under Windows?
The WinSSD utility of SeaMAC for Windows gives you access to all the communication options of Sealevel PCIe and PCI synchronous serial cards necessary…
How should I connect an optically isolated input and voltage supply to a dry contact output?
Sealevel’s SeaI/O modules are a good choice for this application. For example, using a SeaI/O-430 module with 32 isolated inputs, we can connect the dry…
How does the SeaMAC Configuration Utility help me develop a new application that uses the SeaMAC for Windows API?
The SeaMAC Configuration Utility lets you easily configure a Sealevel synchronous serial port to the communication options you select. By using the utility to change…
What is “Flyback Voltage” and what should I do about it?
A “Flyback Voltage Spike” occurs when the supply current to an inductive load such as a solenoid is interrupted. Any switching circuit for highly…
What type of relay should I use to control a 24 VDC solenoid?
The Form C relays contained in many Sealevel digital I/O products are the best choice for switching highly inductive loads like solenoids. Other relays, including…
What is Slew Rate Limiting and when should I use it?
Slew rate is a measurement of how fast the signal voltage changes over a specified period of time. At high data rates, you need a…