Ebyte E90-DTU User Manual page 13

Chengdu Ebyte Electronic Technology Co., Ltd.
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Copyright ©2012–2021, Chengdu Ebyte Electronic Technology Co., Ltd.
Negative terminal of
Battery - battery power supply
interface
DOUT transistor output
Input and output
GND
common terminal
DIN dry contact input
TTL-RXD TTL-3.3V signal input
TTL-TXD TTL-3.3V signal output
TTL-3.3V signal
GND
common terminal
485-B B of RS-485 signal
485-A A of RS-485 signal
GND Negative power output
VOUT Positive power output
PWR Power Indicator
TXD send indicator
RXD Receive indicator
ANT Antenna interface
Master-slave
M1
configuration dial
M0 configuration mode
Negative pole of DC
V-
8~28 V
Positive pole of DC
V+
8~28 V
DC-IN DC power input
E90-DTU(400SL30L)_UserManual_EN
reverse, support the battery charging
function
The output wiring mode is NPN, the load
voltage is less than 30V, and the maximum
allowable current is 100mA
Switch input detection
When using TTL, it is necessary to connect
the signal common terminal, and it cannot
be used with the RS485 interface at the
same time.
Cannot be used with TTL interface at the
same time
The total current of the load connected
through VOUT should be <1A
Host: turn on the power and keep on;
Slave: On when the low-power mode wakes
up, off when entering low-power mode, and
always on when not in low-power mode;
Blinks when sending data
Blinks when receiving data
SMA-K
Dial down for the host
Dial down for configuration mode
DC 8~28 V, 2*5.08mm phoenix terminal
input;
Do not supply power at the same time as
the socket;
DC 8~28 V;
In-line round hole, outer diameter 5.5mm,
inner diameter 2.0mm;
Do not supply power with the terminals at
the same time;
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