Ebyte E90-DTU Manual page 13

Chengdu Ebyte Electronic Technology Co., Ltd.
No. Name
1 RS-232
2 RS485 A
3 RS485 B
4 DC-IN -
5 DC-IN +
6 DC-IN stand
7 PWR-LED
8 TX/RX-LED
9 MODE-LED
10 Ground screw
11 Antenna interface
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Function
RS-232 interface
RS485 interface A is connected to device A
RS485 interfaceA
RS485 interface B is connected to device B
RS485 interfaceB
Crimping power
input negative
Crimping power
input positive
DC socket
5.5*2.1mm
Power Indicator
Data sending and
receiving indicator
Cyan light on: transparent transmission mode
Status Indicator
Connect with the
earth
SMA-K interface
E90-DTU(400SL30P)User manual
Note
Standard RS-232 interface
interface
interface
Power reference ground
Power input
Power input
Red, lit when the power is on
Green, blinking when sending data.
Blue, blinking when receiving data.
Blue light on: WOR send mode
Green light on: Wor receive mode
Connect with the earth
external thread, 10mm, 50Ωcharacteristic
impedance
12