faqs - Posts - Page 1 - Sealevel Systems, Inc

Ethernet to Serial Alternatives

Apr 9th 2025

While Ethernet to serial products have played a critical role in serial to network applications, these products are approaching obsolescence, driving the need to find … View More

How to patch 8250_exar driver in RHEL 8 and 9 for Sealevel XR17V35X cards

Feb 25th 2025

This is intended for RHEL 8 and RHEL 9 users impacted by the issue described in this support article: https://www.sealevel.com/support/how-to-resolve-communication-is … View More

Software: SeaMAX API Documentation

Jan 22nd 2025

Windows SeaMAX API Documentation Sealevel digital and analog I/O modules supported by the SeaMAX software suite are designed to work with third party applications v … View More

How to configure UART-based serial adapters in Linux

Jan 17th 2025

All Sealevel UART based serial adapters are known to work out of the box in the following kernel versions:5.8.x and higher5.7.9 and higher5.4.54 and higher (excluding … View More

RoHS and REACH Compliance, PFAS Statement, TSCA and PROP56 Declarations of Compliance

Jan 9th 2025

Sealevel Systems, Inc. is committed to providing high quality products in compliance with Restriction of Hazardous Substances (RoHS) and the European Union Regist … View More

White Paper: Eliminate Risk of Contention and Data Corruption in RS-485 Communications

Jul 1st 2024

The RS-485 communications standard was introduced in 1983 by the Electronic Industries Alliance (EIA) as a two wire, half-duplex, multi-drop alternative to the point- … View More

What is EtherNet/IP?

Jun 1st 2024

EtherNet/IP is open-source and is managed and developed by the Open DeviceNet Vendors Association (ODVA), a tax-exempt business league that includes a wide variety of … View More

What is Modbus?

Jun 1st 2024

Modbus, initially developed in 1979, is one of the oldest, most widely used industrial communications protocols. Traditionally, Modbus was/is implemented using RS-232 … View More

White Paper: Windows CE Development for RISC Computers Made Easy

May 20th 2024

Windows CE (a.k.a. Windows Embedded Compact), originally released in 1996, can be an attractive alternative to the full Windows operating system offering system desig … View More

What Modbus functions are supported by Sealevel products?

May 1st 2024

Many Sealevel products support Modbus. SeaI/O modules, SeaDAC modules, eI/O modules, SeaRAQ modules, and SeaConnect modules. That said, individual modules support dif … View More

What is Modular Open Systems Approach (MOSA)?

May 1st 2024

MOSA is a strategy used by the Department of Defense (DoD) to make their systems more competitive and affordable throughout their lifespan. It involves designing syst … View More

What network speeds can SeaI/O Ethernet (SeaI/O-E) modules handle?

Mar 29th 2024

What network speeds can SeaI/O Ethernet (SeaI/O-E) modules handle? In a vacuum, SeaI/O Ethernet Modules (SeaI/O-E) can reach latency and polling speeds of around 30 m … View More

SeaMAC: ssiEncodingNone vs ssiEncodingNrz

Mar 25th 2024

Aren’t the ssiEncodingNone and ssiEncodingNrz clock encoding methods in SeaMAC the same? They are very similar, but the difference is that “None” t … View More

Is the 7203e PCIe serial interface dip switch or software configurable to change the RS-485 termination from a 120 Ohm resistor to an AC termination?

Feb 27th 2024

Sealevel’s 7203e does have onboard dip switches that would allow you to turn off the 102 Ohm resistor; the 120 Ohm resistor can be changed through dip … View More

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