Mesh Bidirectional wireless transmission link module features
- OFDM Two-way wireless transmission link Mesh module
- Supply 3 Wireless transparent transmission Ethernet port,1 Wireless transparent transmission serial port,1 Configuration serial port
- Dual antennas: main and auxiliary antennas, which can be configured as dual transmitting and dual receiving, single transmitting and dual receiving, or single transmitting and single receiving.
- Support wireless working frequency bands:566~678MHz、1420~1530MHz, supports automatic frequency hopping within and between frequency bands
- वायरलेस बैंडविड्थ कॉन्फ़िगर करने योग्य:1.4मेगाहर्ट्ज、3मेगाहर्ट्ज、5मेगाहर्ट्ज、10मेगाहर्ट्ज、20मेगाहर्ट्ज、40मेगाहर्ट्ज, the maximum air interface rate can reach 100Mbps
- संशोधन विधि:QPSK/QAM16/QAM64 Automatic adaptation
- Maximum transmit power:23± 2DBM(2 road)
- संवेदनशीलता:-102डी बी एम(1Mbps@20MHz bandwidth)
- वायरलेस लिंक एन्क्रिप्शन और डिक्रिप्शन का समर्थन करें
- Support wireless ad hoc network Mesh Communication method, up to32 node network.
- All node communications share the working bandwidth and the system’s maximum sharing rate 100Mbps. Adaptively distribute system rates equally.
- Supports multi-hop routing topology, up to32 nodes31 Hop routing. Fixed route configuration is supported and takes effect permanently.
- Support the highest300km/h moving speed.
- One-way delay index formula(एमएस): 6*एच + (5/2) * N/2 * एच * 3, the two-way delay multiplied by2（N is the number of nodes within two hops, the number of hops H). Optimized delay between two nodes: One-hop one-way delay between two nodes≤10ms;Four-node chain optimization delay: four-node three-hop single-hop one-way delay≤10ms； 6 Point chain networking,3 hop, one-way delay50ms；8 अंक, one hop for all points, one-way delay36ms；8 अंक, serial7 hop, one-way delay170ms；32 अंक, one hop for all points, one-way delay120ms；32 अंक, serial31 Jump one-way delay3750ms。
- Logical master node power-on network construction delay20s~80s(There are no restrictions on modules. Generally, the logical master node is powered on first.);Cold start, delay from node startup to network access<30s Received logical master node signal; hot start, slave node startup network access delay<1एस(Ordinary one-hop node networking scenario);Hot start, power on the node from a single frequency point and connect to the network<480एमएस + 160ms*H(H is the hop count)。
Mesh Bidirectional wireless transmission link module connector
- Data-uart: Data transparent transmission serial port, default RS232 level(It can also be changed to TTL level)，3PIN 1.25mm Space between seats.
- Ethernet1: Two-way wireless transparent transmission network port,4PIN 1.25mm Space between seats.
- Ethernet2: Two-way wireless transparent transmission network port,4PIN 1.25mm Space between seats.
- Ethernet3: Two-way wireless transparent transmission network port,4PIN 1.25mm Space between seats.Ethernet1、Ethernet2 and Ethernet3 It’s a bridge method,IP The address is the same.
- Control-uart: Configure serial port,TTL 3.3V स्तर,3PIN 1.25mm Space between seats.
- ANT1: Main antenna interface,IPEX seat. The antenna works on TDD Transceiver mode. Regardless of whether the system is 2T2R、1T2R or 1T1R operating mode, the antenna is always TDD Transceiver mode.
- ANT2: सहायक एंटीना इंटरफ़ेस,IPEX Seat. The antenna can be configured as TDD Transmitting and receiving mode, it can also be configured as an auxiliary receiving mode that only transmits without transmitting. When the system is working 1T2R In mode, the antenna does not transmit and only assists in reception.
- Power-in: बिजली इनपुट इंटरफ़ेस,2PIN 2.0mm spacing seat, support 9~28V Wide voltage input, maximum power consumption is less than 6 डब्ल्यू.
- यु एस बी: Micro USB Seat, for system maintenance.
- Switch:receive/Send switching signals for connecting to external Power amplifier module.
- 12V out:वाइड वोल्टेज इनपुट,12V Regulated voltage output(current less than150mA), used to power the cooling fan.
- LED1: Red power indicator light, always on when power is supplied normally.
- LED2: Blue indicator light.
- LED3: Green indicator light.LED2 and LED3 The working status is as follows:
| master node | blue LED2 The indicator light is always on, green LED3 The indicator light does not light up |
| Other nodes | green LED3 The indicator light stays on after the link is successfully established. |
| Blue LED2 Indicator light indicates wireless link signal strength Wireless link signal strong: blue LED2 indicator light 30 Flash once per second; Wireless link signal fair: blue LED2 indicator light 6 Flash once per second; Wireless link signal weak: blue LED2 indicator light1 Flash once per second; |
- The Mesh Module size 80*57mm, the front device height is less than5mm, the height of the back device is less than2.5mm, plate thickness1.6mm,weight 41g。
- The Mesh Module passed Web UI Or configure the serial port AT Parameter query, configuration and management are carried out in command mode.
Mesh Bidirectional wireless transmission link module Interface signal description
पावर इनपुट,3 individual 4PIN network port,3PIN Data-uart、3PIN Control-uart,Switch interface,12V See the figure above for details of output and other signal annotations.
Data-uart
Two-way wireless data transparent transmission serial port, default RS232 level,3PIN 1.25mm Space between seats. Default setting Data-uart The highest priority in wireless link data transmission(Higher than audio and video data, network port data and other port data), the lowest delay.Data-uart Serial port data is wirelessly transparently transmitted to the serial port of other docking nodes in the wireless network.
Control-uart
System management configures the serial port,TTL 3.3V स्तर,3PIN 1.25mm Space between seats. Can be used through this serial port AT command pair the Mesh The module performs parameter configuration, wireless link status query and management, आदि.
Switch इंटरफेस
The maximum transmit power of the mesh module itself is 23±2dBm, it can be extended through the external power amplifier. The module increases the transmit power. This interface is used for external expansion. The mesh module provides an enable signal(Two-way enable)。
| Signal | power domain | I/O | Function description | टिप्पणी |
| PA-enable1 | 1.8वी | THE | High level sending, before sending starts3.19us Pull high, after sending0.26us Pull low. | Send high and close low |
| PA-enable2 | 1.8वी | THE |
We provide various models of power amplifier modules for this mesh module, which can increase the overall transmit power to 2W、5W or 10W. The docking diagram is as follows:
LEDs Welding hole
The Mesh Module onboard has 3 individual LED indicator light(LED1/LED2/LED3). Sometimes it is necessary to pull the indicator light to the equipment shell panel. इस मामले में, you can use LEDs Solder hole solder connection wire connects the indicator light mounted on the panel to the Mesh module board. The corresponding signals are as follows:
| indicator light | illustrate | Corresponding welding holes |
| LED1 | Power indicator light | LED1-GND and LEDs-VCC |
| LED2 | Wireless link working indicator light | LED2-GND and LEDs-VCC |
| LED3 | LED3-GND and LEDs-VCC |
Mesh Module application
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