T R O U B L E S H O O T I N G
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© RF Innovations Pty Ltd, 1998
Page: 91
223889, Revision 2.2
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“I have used the RFI-9256 with several different PC’s and portables using very similar settings, yet I have noticed
that the Transceivers range is reduced considerably when I am using certain computers. Why is this?”
It is possible that certain laptop and desktop computers, which you are using, emit interference that is
detrimental to the RFI-9256’s operation. Try moving the RFI-9256 as far away from the computer as
the cable connected to it will allow, this should reduce the impact of interference from the computer.
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“I have the RFI-9256 set up between two computers and have been unsuccessful in my attempts to establish a link
using LapLink.”
There is a function LapLink supports that allows it to automatically change the baud rates during
connections. As the RFI-9256 does not support automatic baud rate changing, the effects of LapLink
changing its baud rate will cause the connection to fail. If you are uncertain whether it is LapLink or the
radio modem itself, try establishing a link using a terminal package such as RFI’s InTerm. If the link
succeeds, then it is LapLink causing the problem and unfortunately there is no documented solution for
it.
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“I have tried to access the menu via the RFI-9256 front panel (Mode 6 – config) but I get no menu on my terminal
program.”
To resolve this problem, it is best you double-check the settings of firstly the cable connection, then the
terminal program you are using (e.g. RFI’s InTerm) and finally the settings of the radio modem itself.
Step 1: Make sure you have the Auxiliary port of the modem connected to your PC. The menu system
is designed to pop on the Auxiliary port NOT the Main port.
Step 2: As a rule of thumb, accessing the menu via the Front Panel Modes ALWAYS sets the Auxiliary
port’s baud rate to 19200bps. Make sure you have the following terminal settings:
Communications Settings (RS-232 Com Port)
Baud Rate:
19200
Data Bits:
8
Parity:
None
Stop Bits:
1
Flow Control:
No Flow
Terminal Settings
Emulator Mode:
None or Standard TTY
Local Echo:
off
LF to CR on incoming:
off
LF to CR on outgoing:
off
Step 3: There is no reason why ANY settings of the radio modem should affect the ability to access the
Menu via the Front Panel Modes. If you still cannot access the menu, check to see whether the cable
you are using is faulty or not. Finally, if you still cannot access the menu please call your supplier.
