hilscher netTAP NT 50 Series, User Manual

Page: 27 / 86

Device Drawings and Connections 27/86
netTAP NT 50 | Gateway Devices
DOC091202UM09EN | Revision 9 | English | 2013-02 | Released | Public
© Hilscher, 2010-2013
4.3.2.5 X2 for Device Type NT 50-RS-EN
RS-232 Pin Assignment
RS-232 Pin Signal Description
1 GND Reference potential, ground of power supply
6 RxD Receive data
9-pole sub-D
socket, male
8 TxD Transmit data
Table 23: RS-232 Pin Assignment
Please note the wiring instructions in section
RS-232
on page 78.
RS-422 Pin Assignment
RS-422 Pin Signal Description
1 GND Reference potential, ground of power supply
4 RxD + Receive data positive
5 RxD - Receive data negative
6 TxD + Transmit data positive
9-pole sub-D
socket, male
8 TxD - Transmit data negative
Table 24: RS-422 Pin Assignment
A pull up resistor of 10 k Ω is connected device internally at “RxD +“.
A pull down resistor of 10 k Ω is connected device internally at “RxD -“.
Please note the wiring instructions in section RS-422 on page 79.
RS-485 Pin Assignment
RS-485 Pin Signal Description
1 GND Reference potential, ground of power supply
4 RxD/TxD+ Receive data / Transmit data positive
9-pole sub-D
socket, male
5 RxD/TxD- Receive data / Transmit data negative
Table 25: RS-485 Pin Assignment
A pull up resistor of 10 k Ω is connected device internally at “RxD/TxD +“.
A pull down resistor of 10 k Ω is connected device internally at “RxD/TxD -“.
Please note the wiring instructions in section
RS-485
on page 81.