USER MANUAL 1.10 | DC1000 DIALOG-CONTROLLER
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
2VF100107FE10.docx | DC1000_HB_en_2D0982010ZD00.docx
53
NOTICE
If the SD card reader is activated, then the second RS232 interface (X5) is not
longer available.
X8 pin assignment
X8
Sub-D9 F
1
RTXD-
2
NC (Do not connect)
3
NC (Do not connect)
4
RTXD+
5
GND
6
NC (Do not connect)
7
NC (Do not connect)
8
NC (Do not connect)
9
NC (Do not connect)
The interface is terminated “softly” in the Dialog-Controller at 500 Ω (older devices 5 kΩ ). A 120 Ω differen-
tial terminating resistor can be activated for each S4 switch.
RS485
potential isolated