Quick Reference Guide
ARC-1209/1509 Quick Reference Guide 25
2.6.5
Serial port 1 in RS-422/485 mode (JP1)
* Default
For RS-232* For RS-422/485
PIN
Signal
PIN
Signal
PIN
Signal
1
NDCDA#
2
COM1-1
3
485_422TX1-
4
NRXDA
5
COM1-2
6
485
7
NTXDA
8
COM1-3
9
10
NDTRA#
11 COM1-4 12
422RX1-
2.6.6
LCD Inverter connector (JBKL1)
Signal
PIN
+12V
1
GND
2
BKLEN
3
VBRIGHT
4
+5V
5
Note:
For inverters with adjustable Backlight function, it is possible to control the LCD brightness through
the VR signal controlled by
JVR
. Please see the
JVR
section for detailed circuitry information.
Содержание ARC-1209
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