Omega Engineering OMG-ULTRA-485-PCI, Руководство пользователя

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Card Setup
OMG-ULTRA-485-PCI Page 3
1 2 3 4
ON
OFF
5
D
1 D
4 A
T R
T N
E
Figure 2 – Switch SW2, RS-485 ‘Auto’ Enabled, with ‘No Echo’ Divide by 4
1 2 3 4
ON
OFF
5
D
1 D
4 A
T R
T N
E
Figure 3 - Switch SW2, RS-485 ‘Auto’ Enabled, with ‘Echo’ Divide by 4
Baud Rates and Divisors for the ‘Div1’ mode
The following table shows some common data rates and the rates you should choose to match them if using the
adapter in the ‘Div1’ mode.
For this Data Rate Choose this Data Rate
1200 bps 300 bps
2400 bps 600 bps
4800 bps 1200 bps
9600 bps 2400 bps
19.2K bps 4800 bps
57.6 K bps 14.4K bps
115.2 K bps 28.8K bps
230.4K bps 57.6 K bps
460.8K bps 115.2 K bps
If your communications package allows the use of Baud rate divisors, choose the appropriate divisor from the
following table:
For this Data Rate Choose this Divisor
1200 bps 384
2400 bps 192
4800 bps 96
9600 bps 48
19.2K bps 24
38.4K bps 12
57.6K bps 8
115.2K bps 4
230.4K bps 2
460.8K bps 1