Product characteristics

Long distance wireless communication frequency band: 433MHz, transmission power: < 500MW, single hop transmission distance: 2km (open area)

Low power RF front end: optional 2.4GHz or 780mhz wireless working frequency band; RF transmitting power can be selected: - 11dbm ～ +10dBm@780MHz ，-17dBm～ +3dBm@2.4GHz ;

Support multi hop polling protocol, gw-relay can also be used as relay and forwarding equipment, so it can greatly expand the coverage of backbone network;

AC 220 V power supply; l enclosure meets IP67 protection level;

Working temperature: - 35 ~ 70 ℃;

Dimensions (mm): 183 (L) x 157 (W) x 77 (d)

Description and schematic diagram of network topology

Gw-relay equipment supports point-to-point, star network and tree network architecture

Detailed specifications

1、Technical index of 433MHz frequency band

Test conditions: VCC = 5.0V, working frequency: 433MHz, test temperature: 25 ℃

project	Parameter value	project	Parameter value
CPU + RF power supply voltage (VCC)	4.75～5.25V	Maximum transmitting power	+27dBm
Working current: RX mode	50mA	Receiving sensitivity	-118dBm
Working current: TX mode	400mA	Wireless rate	1.2k～38.4kbps
Working current: sleep mode	5uA	Communication interface format	UART/RS232
RF working frequency (China)	429.00~434.93MHz	Data interface format	8E1/8N1
Number of available frequency bands	8	transmission mode	Transparent transmission
The communication distance is the longest in open land	2km	Acquisition interval	always
Enclosure protection class	IP67	Operating temperature range	-35～70℃
Boundary dimension (mm)	183*157*77	Operating humidity range	0-95% non condensing

 2、Technical index of 2.4GHz frequency band

Test conditions: VCC = 3.0V, working frequency: 2.45GHz, test temperature: 25 ℃

project	Parameter value	project	Parameter value
CPU + RF power supply voltage (VCC)	1.8～3.6V	Maximum transmitting power	+3dBm
Working current: RX mode	19mA	Minimum transmit power	-17dBm
Working current: TX mode	20mA	Receiving sensitivity	-101dBm
Working current: sleep mode	15uA	Wireless rate	250～2000kbps
RF working frequency	2.4～2.48GHz	TX/RX RF interface impedance	50 Ohms
Number of available frequency bands	16	The communication distance is the longest in open land	750m
Frequency interval	5MHz	Data acquisition cycle	1 second to 18 hours
Enclosure protection class	IP67	Operating temperature range	-35～70℃
Boundary dimension (mm)	183*157*77	Operating humidity range	0-95% non condensing

 3、Technical index of 780mhz frequency band

Test conditions: VCC = 3.0V, working frequency: 782mhz, test temperature: 25 ℃

project	Parameter value	project	Parameter value
CPU + RF power supply voltage (VCC)	1.8～3.6V	Maximum transmitting power	+10dBm
Working current: RX mode	15mA	Minimum transmit power	-11dBm
Working current: TX mode	29mA	Receiving sensitivity	-110dBm
Working current: sleep mode	15uA	Wireless rate	20～1000kbps
RF working frequency (China)	779～787MHz	TX/RX RF interface impedance	50 Ohms
Number of available frequency bands	4	Frequency interval	5MHz
The communication distance is the longest in open land	2km	Timing acquisition interval	1 second to 18 hours
Enclosure protection class	IP67	Operating temperature range	-35～70℃
Boundary dimension (mm)	183*157*77	Operating humidity range	0-95% non condensing

★Note: the wireless communication distance is related to the working environment, climate, antenna installation mode, etc. the communication distance indicated in this table is limited to the test site designated by our company.

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