Topfield USER GUIDE DIGITAL CABLE RECEIVER TF 100 C - Manual (Page 45)

7.3 From another digital receiver via RS-232 port 39
7.3 From another digital receiver via RS-232 port
It is possible to transfer the firmware from the digital receiver
to another same digital receiver by connecting them with a RS-
232 cable. To update the firmware with this method, perform
the following steps:
1. Turn off the target digital receiver.
2. Plug one end of a RS-232 cable (9 pin D-
sub cable) into the RS-232 port on the
digital receiver, and the other end into
the matching port on the other digital re-
ceiver.
3. Turn on the source digital receiver if not
already on.
4. Select the Installation > Transfer Firmware
to Other IRD menu, then you get asked for
confirmation; select Yes.
5. Turn on the target digital receiver to start
the firmware transfer.
6. A progress bar appears showing the
progress of the firmware transfer.
7. Restart the target digital receiver when the
firmware transfer is complete.