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49
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Appendix B High Speed Operations
This section describes the use of high speed capability supported by C114HI. There
are two speed spectra which are
Normal Speed Spectrum
High Speed Spectrum
50
400
75
600
110
880
134.5
1076
150
1200
300
2400
600
4800
1200
9600
1800
14400
2400
19200
4800
38400
7200
57600
9600
76800
19200
153600
38400
307200
57600
460800
115200
921600
The corresponding speed in High Speed Spectrum is exactly eight times the speed in
Normal Speed Spectrum. A port, if set to Normal Speed Spectrum with 38.4K bps,
will work at 38.4K bps for sure; while a port, if set to High Speed Spectrum with
38.4K bps, will actually work at 307.2K bps (307.2K = 38.4K X 8). Choose either
one of the two speed spectra by running DOS utility: IO-IRQ.EXE.
*
Hint:
1. Check what speed range is needed for a port.
2. If a port will work at speed slower than 400 bps, e.g. 75 bps, then
choose Normal Speed Spectrum by running IO-IRQ.
3. If a port will work at speed faster than 115.2K bps, e.g. 460.8K, or
at a special speed, e.g. 400 bps, then choose High Speed Spectrum
by running IO-IRQ.
Summary of Contents for Industio C114HI
Page 1: ...C114HI 3 in 1 RS 232 422 485 Industrial Serial Board Apr 1998 2nd Edition All Rights Reserved...
Page 6: ......
Page 10: ...Introduction l l Chapter 1 4...
Page 20: ...Software Installation l l Chapter 3 14...
Page 26: ...For Windows NT Users l l Chapter 4 20...
Page 38: ...For DOS Users l l Chapter 7 32...
Page 42: ...For Windows 3 x Users l l Chapter 8 36...
Page 46: ...Chapter 9 l l RS 232 RS 422 RS 482 Programming 40...