Chengdu Ebyte Electronic Technology Co., Ltd.
E220-900T30S User Manual
Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
5
2. Specifications and Parameters
2.1 Limit parameter
Main parameter
Performance
Remark
Min.
Max.
Power supply
（
V
）
2.3
5.5
Voltage over 5.5V will cause permanent damage to module
Blocking power
（
dBm
）
-
10
Chances of burn is slim when modules are used in short
distance
Operating temperature
（
℃
）
-40
+85
Industrial grade
2.2 Operating parameter
Main parameter
Performance
Remark
Min.
Typ.
Max.
Operating voltage
（
V
）
3.3
5.0
5.5
≥5.0 V ensures output power
Communication level
（
V
）
-
3.3
-
For 5V TTL, it may be at risk of burning down
Operating temperature
（
℃
）
-40
-
+85
Industrial design
Operating frequency
（
MHz
）
850.125
-
930.125 Support ISM band
Power
consum
ption
TX current
（
mA
）
-
610
-
Instant power consumption @30dBm
RX current
（
mA
）
-
17
-
-
Sleep current
（
μA
）
-
3
-
Software is shut down
Max Tx power
（
dBm
）
29.5
30.0
30.5
-
Receiving sensitivity
（
dBm
）
-
-129
-
-124dbm,BW_L=125kHz,SF = 7,LORA
TM
;
-129dbm,BW_L=125kHz,SF = 9,LORA
TM
;
-121dbm,BW_L=250kHz,SF = 7,LORA
TM
;
-129dbm,BW_L=250kHz,SF = 10,LORA
TM
;
-117dbm,BW_L=500kHz,SF = 7,LORA
TM
;
-127dbm,BW_L=500kHz,SF = 11,LORA
TM
;
Air data rate
（
bps
）
2.4k
2.4k
62.5k
Controlled via user’s programming
Distance for reference
10km
Test condition
：
clear and open area, antenna gain: 5dBi
，
antenna height:
2.5m
，
air data rate: 2.4kbps
TX length
200 Btye
Can be configured via command as 32/64/128/200 bytes per packet to
transmit
Buffer
400 Btye
-
Modulation
LoRa
New generation LoRa modulation technology
Communication interface
UART
TTL Level
Package
SMD
-
Connector
1.27mm
Stamp hole
Size
25*40.5 mm
-
Antenna
IPEX/Stamp hole
50 ohm impedance
