User's Manual

T90-DTU User Manual
2
★ Ultra-low power consumption, the standby current is only 10mA (lower than power consumption in power-saving mode and sleep
mode), and the transmitting current is ≤0.1A.
★ with built-in watchdog and precise time layout, once an exception occurs, the transceiver will automatically restart, and continue to
work according to the previous parameters.
2. Dimensions
2.1. Parts description
No.
Name
Function
Note
1
DB-9 female
socket
RS-232 interface
Standard RS-232 interface
2
3.81 terminal block
RS-485, power
interface
Standard RS-485 interface and pressure line
power interface
3
PWR-LED
Power LED
Red, lit when the power is on
4
TXD-LED
Transmit LED
Yellow, blinks when sending data
5
RXD-LED
Receive LED
Yellow, blinks when receiving data
6
DC power interface
Power interface
In-line round hole, outer diameter 5.5mm,
diameter 2.5mm
7
DIP switch
DIP switch
Controlled by working mode
8
Antenna interface
SMA-K interface
external thread, 10mm, 50Ωcharacteristic
impedance