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18 Baud Rate Mapping

SCO OpenServer

Baud Rate Mapping

Older versions of UUCP and CU do not support baud rates above

38.4K bps. (This was corrected in 5.0.4c.) Therefore, to take full

advantage of the RocketPort or RocketModem board’s potential speed

with either older or current versions, use one of the following methods

to remap baud rates:

• setbaud

This program enables you to remap baud rates for one or more

ports, for the current session only.

• baud.init

This command enables you to remap the baud rates automatically

each time the system is rebooted.

Setbaud

Follow these steps to temporarily remap baud rates:

1. Disable the ports for which you want to remap baud rates.

2. Enter this command:

/comtrol/rckt/setbaud -h /dev/portname

The rates are remapped as shown in the following table:

3. Repeat Step 2 for each port for which you are remapping rates.

4. Use the normal tty administrative procedure to set the port to the

system rate. The setbaud rate will be used instead.

To map a port to a rate not in the setbaud table, enter this command:

/comtrol/rckt/setbaud -x /dev/portname oldrate newrate

Where oldrate is the system rate and newrate is the desired new rate.

To reset a port to standard system rates, enter this command:

/comtrol/rckt/setbaud -n /dev/portname

Table 4. Baud Rate Mapping

System Rate

Setbaud

Rate

50 57600

75 76800

110 115200

134 230400

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 41 42

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Comtrol SCO OpenServer Bedienungsanleitung Seite 18