Sealevel synchronous serial adapters support the three most common non-encoded clocking modes:The Sealevel serial adapter provides the clock using the baud ra
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Resource Center
What is the extra data transmitted between Sealevel Ethernet Serial Servers and the SeaLINK driver?
Apr 29th 2011
The extra data is non-serial Telnet command messages such as COM port settings and modem control signals. SeaLINK devices communicate using the RFC-2217
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In Windows XP Embedded, what components and drivers are required to add multiport serial adapters?
Apr 29th 2011
For proper enumeration of Sealevel multiport serial adapters, the following components must be included in the Microsoft Windows XP Embedded OS image build:&ld
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Manchester clock encoding (also known as split phase or bi-phase level encoding) always produces a transition at the center of the bit cell.Sealevel synchron
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To optimize a SeaLINK Ethernet serial server for lower latency, disable Nagle’s algorithm on both the SeaLINK device and virtual COM port driver.
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By default, SeaLINK Ethernet serial servers use Nagle’s algorithm to reduce network traffic and increase serial data throughput, with the side effect o
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Sealevel USB serial adapters are supported by the SeaCOM driver, which includes a latency timer with a default setting of 16 msec. Decreasing this value redu
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Software: WinSSD Diagnostic Utility – Windows
Mar 10th 2011
Downloads:
WinSSD for Windows Size: 5.8 MB Type: .exe
WinSSD Help FileSize: 3.5 MB Type: .hlp
This is the standalone version of the Sealevel WinSSD diagnostic utilit
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OverviewThis condition is potentially encountered in Microsoft Windows when connecting a serial GPS device to a serial port. It is caused when the NMEA 0183 GPS
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Yes. Please include your account number in the ‘Special Instructions’ field and we will bill the freight charges to your account. The ‘Specia
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All Sealevel TTL Digital I/O products are configured to power up in input mode by default. This ensures that no outputs are inadvertently activated.
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Why does the mouse cursor randomly jump around when I connect a GPS to a Sealevel serial adapter?
Feb 2nd 2011
You are describing the “crazy mouse” syndrome, a common condition when Microsoft Windows receives NMEA 0183 data from a serial GPS device. The conditio
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The Zilog 16C32-based 3514 and 5104 have 256 K of memory on the adapters that are used for buffering the input and output data. To aid in transfer efficiency, the Wi
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The SBC-R9 has eight analog inputs with an effective bandwidth of 1.23 kHz divided across all eight analog inputs. The A/D device specifies a maximum sampling fr
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The Z16C32 operates similar to a UART and transmits the least significant bit first. The only exception is when the card is operating in SDLC/HDLC mode wit
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Firmware: SeaLINK (Ethernet)
Jan 21st 2011
Download SeaLINK Firmware (.s19 680.8 KB)
Please refer to the SeaLINK User Manual or contact Sealevel technical support for instructions on updating the firmware on y
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The ITU document O.153 paragraph 2.1 indicates the BERT pattern can be used at data rates up to 14.4 Kbps. However, the Sealevel WinSSD utility allows the B
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What CRC-CCITT value is used by Sealevel synchronous serial adapters with the Zilog Z85230?
Dec 29th 2010
The CRC-CCITT polynomial value used in the Zilog Z85230 is:x16 + x12 + x11 + x10 + x8 + x3 + x2 + x1 + 1The corresponding hexadecimal value is 0x1D0F.
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