B.1 Product introduction

The wireless communication terminal of ESI-309 overhead fault indicator is mainly used to realize the communication between overhead fault indicator and remote server. As a communication bridge between fault indicator and remote server, ESI-309 wireless communication terminal is always in working state. On the one hand, it waits for fault indicator to upload data, on the other hand, it maintains real-time communication with remote server, and uploads all data information to remote server. ESI-309 wireless communication terminal uses 6.2 V rechargeable lithium iron phosphate battery as power source. The power comes from external solar panels.

B.2 Terminal composition (as shown in the figure below)

1)       GPRS wireless communication unit;

2)       A SIM card holder;

3)       433M wireless communication unit;

4)       MCU central processing unit (32-bit ARM as the central processing unit, running speed up to 72Mhz);

5)       Real time clock unit;

B.3 Function Characteristics

1)       Receiving the data uploaded from the fault indicator in real time;

2)       Fault current monitoring and fault diagnosis;

3)       Store the operation parameters of the fault indicator, which can be downloaded in the fault indicator when update is needed;

4)       To Processing transformation, store and manage the data uploaded from the fault indicator;

5)       Real time communication with remote servers, uploading the latest data of the fault indicator to the server;

6)       Support remote online upgrade and local serial port upgrades;

7)       The standard transport protocol set IEC60870-5-101 (supports 101 of the various length configuration);

8)       Support handheld PDA app - 800 for its on-site settings;

9)       Support the free configuration of upload point table (direct parameter configuration does not need to modify the program);

10)   The current status of the terminal can be observed remotely through the super bright indicator lamp;

11)   Both solar panels and terminals are connected by means of Navigation;

12)   The 18V30W solar panel is used to charge 6V17ah lithium iron phosphate battery;

13)   The terminal can support 10 sets of fault indicator access;

14)   Support remote reset and remove fault flag;

15)   Setting parameters through SMS mode;

16)   PC configures its parameters through 232;

17)   Support 485 communication mode;

18)   Support Netcom 4G communication mode;

19)   Support GPS system positioning;

20)   Waterproof grade IP65;

21)   Compact size and easy installation;

a)   

B.4 Technical Parameter

a)    Technical parameters of wireless module

1)       Working frequency:      433.00 ~ 491.00MHz       Modulation mode:      FSK

2)       Frequency stability:      10PPM                Transmitting power...…......5mW

3)       Receiving sensitivity….....…. -114dBm.........….........…Air Baud rate...............20kbps

4)       Signal transmission distance..................…>50m

a)    GSM module technical parameters

1)     Working frequency.........…. GSM850/EGSM900/DCS1800/PCS1900

2)     Maximum output power......…. GSM850/EGSM900: Class 4(2W)

.......…. DCS1800/PCS1900: Class 1(1W)

3)     Receiving signal sensitivity......<-106dBm        Antenna:    50Ω

4)     GPRS......…...Class 12...…. Mobile base station......…...Class B

5)     Data storage unit (4Mb SPI storage); charging management unit;;

6)     A GSM antenna interface;

7)     A 6V battery interface;

8)     An external 9-28V charging interface (external power supply or solar panel can be connected).

9)     Two 232 voltage 232 interfaces; (for parameter setting and upgrade)

b)   Other Technical Parameters

1)       Working Current......….......<50Ma...…...supply voltage......6.2VDC

2)       Battery Specification............6V 17AH(Lithium iron phosphate)

3)       Solar panel Specifications.........18V 26W

4)       Working Temperature Range...…. -35ºC ~ 75ºC