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Port naming, Accessing higher baud rates, Configuring your devices – Comtrol RocketModem User Manual

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RocketPort® and RocketModem® Driver Installation for Linux

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Port Naming

11. If you are installing a RocketPort, connect your peripherals to the interface box

or ports.

If you are installing a RocketModem, connected your cables between the
RocketModem RJ11 connectors and the wall phone jack RJ11 connectors.

Note: If you need pin out information to build cables, see the

Hardware

Installation

documentation.

Port Naming

The RocketPort/RocketModem serial ports installed by this driver will be named
/dev/ttyRx, where x is the port number starting at zero (for example, /dev/ttyR0,
/devttyR1, and so forth).

If you have multiple cards installed in the system, the mapping of port names to
serial ports is displayed on the system console when rc.rocket start is executed.
This information is also written into the system log at /var/log/messages, in case the
driver starts automatically on system startup.

Accessing Higher Baud Rates

For backwards compatibility with other serial drivers, the device driver supports
the remapping of 38,400 baud to either 57,600 baud or 115,200 baud.

In addition, setrocket can be used to remap 38,400 baud to 230,400 baud. This
can improve performance when using modern, high-speed modems. However, not
all modems support 230,400 baud, check your modem manual for more details.

Execute setrocket without any parameters to get a usage message.

If your system has a recent shared libc installed and your communications
programs have been recompiled to take advantage of 57,600 and 115,200 baud
rates, then you may not need to use the remapping option. 230,400 baud still
requires the remapping option until the appropriate changes can be propagated
into the kernel, libc, and communications programs so as to support this speed
directly.

Configuring Your Devices

For current information on how configure your devices for Linux, use the

www.tldp.org

(The Linux Documentation Project) link to locate How to documents

for:

Modems

Printers

Serial devices