User Manual

Touch Panel Standard Line Properties 37
762-4xxx TP 600
Manual
Version 1.3.0
Continuous shielding is essential in order to increase the immunity to
interference. For this purpose, the metallic housing of the socket is connected to
functional ground.
The connected data cable must be shielded. The cable clamp that is used must
guarantee sufficient strain relief and contact between the shield and housing over
a large area at the same time.
The data direction of the RS 232 interface of the Touch Panel corresponds to
device type DCE.
4.4.5.1 Operating as an RS-232 Interface
Komm uni kati onsa nsc hluss
Depending on the device type DTE (Data Terminal Equipment, e.g., PC) or DCE
(Data Communication Equipment, e.g., PFC, modem), the RS-232 signals have
different data directions.
Table 12: Function of RS-232 Signals for DTE/DCE
Contact Signal
Data Direction
DTE
DCE
2
RxD
Input
Output
3
TxD
Output
Input
5
FB_GND
---
---
7
RTS
Output
Input
8
CTS
Input
Output
For a DTE-to-DCE connection, the signals are connected directly (1:1).
Figure 14: Termination with DTE-DCE Connection (1:1)
For a DCE-to-DCE connection, the signal connections are crossed (cross-over).
Figure 15: Termination with DCE-DCE Connection (Cross-Over)