Chengdu Ebyte Electronic Technology Co., Ltd.
NB144 User Manual
Copyright ©2012
，
Chengdu Ebyte Electronic Technology Co., Ltd.
13
three
interface-R+
twenty
four
RS422-4-R-
Serial port 4-RS422
interface-R-
3.81mm Phoenix terminal
25
GND
Serial port 4 ground
terminal
3.81mm Phoenix terminal
26
RS422-4-T+/A
Serial port 4-RS422
interface-T+
Serial port 4-RS485
interface A
3.81mm Phoenix terminal
27
RS422-4-T-/B
Serial port 4-RS422
interface-T-
Serial port 4-RS485
interface B
3.81mm Phoenix terminal
28
GND
Serial port 2 ground
terminal
3.81mm Phoenix terminal
29
-
Negative pole of DC 8-28
V
DC 8 -28 V , 5.08 mm Phoenix terminal;
30
+
Positive pole of DC 8-28
V
DC 8 -28 V , 5.08 mm Phoenix terminal;
31
DC -IN
DC power input
DC 8-28V ;
Outer diameter 5.5mm , inner diameter 2.0 mm
in-line round hole;
32
Ethernet _
Ethernet interface
Standard R J45 Ethernet interface
33
re load
factory reset button
After long pressing for 5s, N ET is always on
for 5s, and the device is restored to factory
Warning: Only one of the two power supply ports can be used in one time.
3.3Indicator light description
Label
Function
illustrate
POWER
Power Indicator
Connect to the power supply, light up;
N ET
Running lights
Not connected to the network cable: 1 00 ms on, 9 00 ms off,
flashing periodically;
Connecting the network cable: 1s is a cycle of flashing;
