Comtech EF Data CDM-600 Operating Instructions Manual page 152

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CDM-600 Satellite Modem
Flash Upgrading
Full on-line help is provided with 600Flash.exe, but if users experience a problem, or
have a question, they should contact Comtech EF Data Customer Support department.
WARNING
The Remote Control port EIA-232 lines used for Flash upgrading also
are connected to the Primary 25-pin data connector (P3B), and are used
when 1:N Redundancy Switch is connected. Please ensure that
NOTHING is connected to P3B pins 4, 21 and 22 – if these pins are used,
the EIA-232 remote control port will not function, and Flash upgrading
will be impossible.
14–2
Revision 7
MN/CDM600.IOM

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