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12/03 Rev. 3.00-01
Changing the serial interface to RS485 mode
The serial interface of the TTX 350 can be
operated alternatively in either RS232 or in
RS485/422 mode. This can be changed by
means of two jumpers on the mainboard. The
factory setting of the interface is RS232 mode.
To change modes, please proceed as follows:
Regarding this point, see also the
section "Periphery set-up"
Printers with periphery set-up
1. Remove the peripheral board.
Regarding this point, see the section
"Printed circuit boards".
2. Position the two jumpers (1, 2) as shown
in the diagrams on the right.
•
Centre diagram: Setting for RS232.
•
Diagram below: Setting for RS485/422
Printers without periphery set-up
1. Detach back cover.
Regarding this point, see the section
"Housing".
2. Continue from item 2 of the description
"Printers with...".
Tools
- Hexagon socket 3 mm
SERVICE MANUAL
TTX 350
General Service
1
2
1
2
17
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