Cable Connection
The cashier display cable features a mini DIN connector at one end (which
is connected to the cashier display) and a 9-pin D sub connector at the
other (which is connected to the COM interface of the point of sale system).
Similarly, the voltage (12V) is also supplied to the display via the COM
interface.
The pins of the 6-pin mini DIN socket and the 9-pin D sub socket are
assigned as follows:
6-pin mini DIN
Socket
Signal
9-pin D-Sub-
Socket
1
RTS
7
2
CTS
8
3
GND
5
4
RXD
2
5
TXD
3
6
12V
1
4
9
6
21
CABLE CONNECTION