1 over the air, 2 from your computer via rs-232 port, Over the air – Topfield TF 5100 CI User Manual
Page 57: From your computer via rs-232 port

7.1 Over the air
51
update.
7.1
Over the air
You can get a new firmware over the air.
To update the firmware by this
method, press the Installation >
Firmware Upgrade
menu.
Selecting the Start option starts
firmware update
Satellite
Astra
Frequency
12603 MHz
Symbol Rate
22000 KS/s
Polarity
Horizontal
PID
347
On the left table is presented
the transponder information
appointed by the manufac-
turer Topfield for firmware
update.
This transponder information can be changed. You can get the
information at the Topfield web site,
7.2
From your computer via RS-232 port
It is possible to transfer a new firmware to the digital receiver
from your computer connecting them with a RS-232 cable. You
need TFD-Down, the firmware transfer utility for this, which
is available at the Topfield web site,