ម៉ូឌុលបញ្ជូនអ៊ីសឺរណិតឥតខ្សែ COFDM 100M bps RJ45 FDD និងអ្នកទទួលទិន្នន័យវីដេអូ
Mini COFDM wireless Ethernet transparent transmission module 100M bps RJ45 FDD video data transmitter and receiver for UDP IP camera
តារាងមាតិកា
សេចក្តីផ្តើម
- This is a broadband cofdm wireless video data transmission module. Both the transmitter and receiver modules have an RJ45 network and UART data and control interface.
- The network port on the transmitter can be connected to the IP camera as the video source for wireless transmission, and it can also be connected to the data source of the network port, which is transmitted to the receiving module through COFDM technology. The receiver also has an RJ45 network and data UART control port, and it supports UDP playback on the PC.
- The frequency can be modified through the UART serial port, or one-way data transmission can be added to realize the requirement of remote frequency modification without powering off to restart.
- There are two RF antennas on this transceiver module, one is TX and the other is RX, which can realize two-way transmission of video and data. Two different frequency ranges need to be set, and BPF filters are used to filter clutter and avoid mutual interference.
- This model can run the CMD Ping command and get a response. (video on youtube)
- This is adopted by FDD technology.
- The default working frequency is 340Mhz and 590Mhz. (Other frequencies can be adjustable from 170~860Mhz)
- It does not include any power amplifier.
លក្ខណៈពិសេស
- Small dimension. Length 70MM, width 50MM, height 20MM
- ការប្រើប្រាស់ថាមពលទាប. In the case of 2M bandwidth, 12រ V, current 200mA
- RF performance is good. Spurs low
- Good bandwidth compatibility. Bandwidth 2M~8M bandwidth adjustable on the same board, step 100KHz
- Wide voltage power supply. Power supply voltage range: 6V~20V.
អនុគមន៍
- Adjustable parameters
IFFT：2k
ចន្លោះពេលឆ្មាំ: 1/4, 1/8, 1/16, 1/32
FEC：1/2、2/3、3/4、5/6、7/8
ផែនទីម៉ូឌុល: QPSK (4QAM), 16QAM, 64QAM
កម្រិតបញ្ជូន: 2M~8M bandwidth adjustable, step 100KHz
- 128-bit encryption
The module supports 128-bit encryption, and the decryption requires the cooperation of the decryption board
- Communication control serial port parameters
8 ប៊ីតទិន្នន័យ
1 ឈប់បន្តិច
ឥទ្ធិពលស្មើសូម្បីតែ
អត្រា baud: 19200
- Support full-duplex 100M Ethernet transmission, support TCP, UDP.
TCP supports point-to-point transparent Ethernet transmission.
UDP supports point-to-multipoint transparent Ethernet transmission, IEEE 802.3 AND 802.3u.
- ប្រេកង់ RF
នេះ transmitter frequency range supports from 50MHz to 2.5GHz, with a step of 100KHz
នេះ receiver frequency range supports from 158MHz to 860MHz, stepping 100KHz
- RF output power is controllable
RF output power attenuation is adjustable from 0dB to 15dB
- Support one standard RS232 data serial port
ឧបករណ៍ភ្ជាប់
ពិន 7-12: Connect the Xilinx’s programmer, update the new firmware from the computer
វិមាត្រ
COFDM Transceiver package details.
Parameter Configure Board
ការតភ្ជាប់
- The sending end of the control serial port of the keyboard is connected with the receiving end of the module serial port
- The receiving end of the control serial port of the keyboard is connected to the sending end of the module serial port
- The ground of the control serial port of the keyboard is connected with the ground of the serial port of the demodulation board
- The LCD interface of the keyboard is connected to the LCD interface of the LCD board with a flat wire, and pin 1 corresponds to pin 1.
- The module and the keyboard must be connected to the 12V power supply, and the LCD board does not need to be connected to the power supply
Electrical Characteristics
- ការផ្គត់ផ្គង់ថាមពល DC, voltage 6V~20V
- Recommendation: The power supply voltage is 12V, and the current is 200mA~300mA
ប៉ារ៉ាម៉ែត្របច្ចេកទេស
- RF output power -15 ±3 dBm (less than 1GHz, greater than 1G, need to be measured). ចំណាំ: Here -15 ±3 dBm is the peak power. When we customize the PA (អំព្លីអំណាច) for this COFDM ethernet transceiver, we need to make the PA according to the average power -5dBm.
- Carrier-to-noise ratio >40dB （It is the difference between the highest point of the spectrum analyzer and the point going out from the bottom）
សំណួរគេសួរញឹកញាប់
- Does the pair of devices implement a transparent ethernet pipe? បាទ
- Is there a limit to the number of devices (MAC addresses) each side of the device can handle? គ្មាន
- What is the maximum bandwidth per stream (RX and TX)? up to 30Mb
- Are the RX and TX streams equivalent, or does one of them have higher priority (eg, higher bandwidth)? គ្មាន
- Are there any restrictions on the type of traffic (especially multicast, ការចាក់ផ្សាយ) that the device can transmit? គ្មាន
- Are there any limitations to the support of IP protocols (TCP, UDP, ICMP, SCTP), especially in the case of two-way communication? គ្មានដែនកំណត់
- បាទ, សូមត្រួតពិនិត្យ the test video at youtube.
- Download Vcan1886 communication control protocol
- Here is an example of a UART control command to modify the frequency.
- Modify the Transmitter frequency to 615Mhz.
- In units of 100KHz, 615Mhz should wright 6150
- 6150 in decimal is equal to 1806 in hexadecimal
- High: Fixed format 0003+18+[03+18=1B]，so {0003181ខ}
- ទាប: Fiexed format 0004+06+[04+06=0A], so {0004060មួយ}
- {00000101} restart
- {00000000} reset
- Modify the Transmitter frequency to 700Mhz.
- In units of 100KHz, 700Mhz should wright 7000
- 7000 in decimal is equal to 1B58 in hexadecimal
- High: Fixed format 0003+1B+[03+1B=1E]，so {00031B1E}
- ទាប: Fiexed format 0004+58+[04+58=5C], so {0004585គ}
- {00000101} restart
- {00000000} reset
- Modify the Transmitter frequency to 600Mhz.
- In units of 100KHz, 600Mhz should wright 6000
- 6000 in decimal is equal to 1770 in hexadecimal
- High: Fixed format 0003+17+[03+17=1A]，so {0003171មួយ}
- ទាប: Fiexed format 0004+70+[04+70=74], so {00047074}
- {00000101} restart
- {00000000} reset
- Please contact us if you need any futher test video, we will show you details.
- Although our two-way wireless network port transceiver module supports transmit frequency, which can be selected from 50Mhz to 2500 មេហ្គាហឺត, the receiving frequency range can only be between 170~860Mhz;
- if you choose 900Mhz and 2400Mhz as the transmitting and receiving frequency, you must add an up-converter block and down-converter block, frequency filters, power amplifiers, and other devices.
- គ្មាន.
- Only Point-To-Point.
- បាទ
- Needs use UART to Sbus converter board. Please tell us if you need this function, we will change the UART to Sbus for you before delivery.
Vcan1886_Mini_COFDM Ethernet IP transceiver module
Menu and key operation instructions
menu 1
| គ | នេះ | ស្រី | D, | M បាន | |||||||||||||||
| IN | ខ្ញុំ | ៛ | AND | L | AND | ស | ស | AND | T មាន | ក្រុមហ៊ុន H | AND | ៛ | ន | AND | T មាន |
Power on and start to enter menu 1, and enter menu 2 after communicating with the board
If the status of the emission section is set to work, press the left button to 4.
If the status of the receive section settings is Working, press the right key to 3.
Up and down keys and exit, the OK key does not work
Press the MENU key to enter menu 5.
Press OK and Exit at the same time to enter menu 16 and save all the parameters of the channel. (តាមវិធីនេះ។, the control panel can be used, and the module will run with the saved parameters after power-on last time)
menu 3
| ៛ | 0 | 0 | : | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | L | គ | តារា K | |||
| 2 | 6 | . | 6 | ឃ | ខ | – | 9 | 9 | . | 9 | ឃ | ខ | ម៉ែត្រ |
Press the up or down key to change the receiving channel, if there is a new channel, enter the menu 31
Press the left key or the escape key to return to menu 2.
Press the menu key to jump to Menu 5
menu 31
| ៛ | 0 | 0 | : | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | នេះ | តារា K | ? | |||
| 1 | / | 2 | 1 | 6 | សំណួ | មួយ | M បាន | 1 | / | 3 | 2 |
Up or down keys to change the transmission channel
Press OK to return to menu 32.
Escape key to return to menu 3
Other keys have no effect.
menu 32
| ៛ | 0 | 0 | : | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | . | . | . | . | ||
| 1 | / | 2 | 1 | 6 | សំណួ | មួយ | M បាន | 1 | / | 3 | 2 |
បន្ទាប់ពីការ 1 ទីពីរ, return to menu 3.
Other keys have no effect.
ម៉ឺនុយ 4:
| T មាន | 0 | 0 | : | 0 | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | L | គ | តារា K | ||
| 1 | / | 2 | 1 | 6 | សំណួ | មួយ | M បាន | 1 | / | 3 | 2 | 1 | 5 | ឃ | ខ |
Up or down key to change the transmission channel, if the channel is changed, enter menu 41
Press the right key and exit key to return to menu 2.
MENU key to enter menu 5.
ម៉ឺនុយ 41:
| T មាន | 0 | 0 | : | 0 | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | នេះ | តារា K | ? | ||
| 1 | / | 2 | 1 | 6 | សំណួ | មួយ | M បាន | 1 | / | 3 | 2 | 1 | 5 | ឃ | ខ |
Up or down key to change the transmission channel.
Press OK to enter menu 42.
Press the exit key to return to Menu 4
Other keys do not work
ម៉ឺនុយ 42:
| T មាន | 0 | 0 | : | 0 | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | . | . | . | ||
| 1 | / | 2 | 1 | 6 | សំណួ | មួយ | M បាន | 1 | / | 3 | 2 | 1 | 5 | ឃ | ខ |
Within 1 ទីពីរ, return to menu 4.
Other keys have no effect.
ម៉ឺនុយ 5:
| 1 | ស | AND | T មាន | 1 | 2 | 8 | ខ | ខ្ញុំ | T មាន | តារា K | AND | AND | |||||||
| 2 | ន | AND | IN | T មាន | X បាន | គ | ក្រុមហ៊ុន H | មួយ | ន | ន | AND | L |
3 N E W R X C H A N N E L
4 D E L T X C H A N N E L
5 DEL RX CHANNEL
6 SET MODULE STATUS
7 SEP DATE WITH
The cursor stops at 1 when entering,
Press the up or down key to move the cursor.
Ok key to select the number corresponding to the cursor. ជ្រើសរើស 1: jump to 6, ជ្រើសរើស 2: jump to 7, ជ្រើសរើស 3: jump to 8, ជ្រើសរើស 4 to jump to 9; ជ្រើសរើស 5, jump to 91; ជ្រើសរើស 6, jump to menu 15; ជ្រើសរើស 7, jump to menu 17.
Escape key, and return to menus 2 ឬ 3, ឬ 4.
The left button, right button, and the menu don’t work.
ម៉ឺនុយ 6:
| 1 | 2 | 8 | ខ | តារា K | AND | AND | : | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Left and right keys to move the cursor,
Press the up or down key to change the number that the cursor is on,
OK key to return to menu 2 ឬ 3, ឬ 4.
Escape key or menu key to return to menu 5
ម៉ឺនុយ 7:
| ស្រី | ៛ | AND | សំណួ | : | 0 | 3 | 4 | 0 | . | 0 | M បាន | ខ | IN | : | 2 | . | 0 | M បាន | |
| 1 | / | 2 | សំណួ | P បាន | ស | តារា K | 1 | / | 3 | 2 | 0 | ឃ | ខ |
Left and right keys to move the cursor,
Press the up or down key to change the number that the cursor is on,
After pressing OK, skip to menu 2 when done.
Escape key or menu key to return to menu 5
ម៉ឺនុយ 8:
| ស្រី | ៛ | AND | សំណួ | : | 3 | 4 | 0 | . | 0 | M បាន | ខ | IN | : | 2 | . | 0 | M បាន | ||
| P បាន | IN | ស | ក្រុមហ៊ុន H | នេះ | តារា K | T មាន | នេះ | ស | AND | មួយ | ៛ | គ | ក្រុមហ៊ុន H |
Left and right keys to move the cursor,
Press the up or down key to change the number that the cursor is on,
After pressing OK, skip to menu 10 when done.
Escape key or menu key to return to menu 5
ម៉ឺនុយ 9:
| T មាន | 0 | 1 | 0 | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | ||||||
| 1 | / | 2 | 1 | 6 | សំណួ | មួយ | M បាន | 1 | / | 3 | 2 | 1 | 5 | ឃ | ខ |
Up and down keys to change the channel number.
After selecting OK, skip to menu 14
Escape keys 2 ឬ 3, ឬ 4.
MENU key to return to 5
other keys don’t work
ម៉ឺនុយ 91:
| ៛ | 0 | 1 | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | |||||||
| 1 | / | 2 | 1 | 6 | សំណួ | មួយ | M បាន | 1 | / | 3 | 2 |
Up and down keys to change the channel number.
After selecting OK, skip to menu 141
Escape key to return to menu 2
MENU key to return to 5
other keys don’t work
ម៉ឺនុយ 10:
| ស្រី | ៛ | AND | សំណួ | : | 3 | 4 | 0 | . | 0 | M បាន | ខ | IN | : | 2 | . | 0 | M បាន | ||
| ស | AND | មួយ | ៛ | គ | ក្រុមហ៊ុន H | ខ្ញុំ | ន | G | . | . | . | P បាន | L | ស | IN | មួយ | ខ្ញុំ | T មាន |
all keys do not work
For frequency locked, go to menu 12, if not locked, go to menu 11
ម៉ឺនុយ 11:
| ស្រី | ៛ | AND | សំណួ | : | 3 | 4 | 0 | . | 0 | M បាន | ខ | IN | : | 2 | . | 0 | M បាន | ||
| IN | ន | L | នេះ | គ | តារា K | P បាន | IN | ស | ក្រុមហ៊ុន H | នេះ | តារា K | ៛ | AND | T មាន | ៛ | AND |
Left and right keys to move the cursor,
Press the up or down key to change the number on the cursor, if changed, return to menu 8
After pressing OK, skip to menu 10 when done.
Escape key or menu key to return to menu 5
ម៉ឺនុយ 12:
| ស្រី | ៛ | AND | សំណួ | : | 3 | 4 | 0 | . | 1 | M បាន | ខ | IN | : | 2 | . | 0 | M បាន | ||
| L | នេះ | គ | តារា K | P បាន | IN | ស | ក្រុមហ៊ុន H | នេះ | តារា K | T មាន | នេះ | ស | មួយ | IN | AND |
After pressing OK, jump to menus 2 ឬ 3 ឬ 4 when done
Escape key or menu key to return to menu 5
other keys don’t work
menu 14
| T មាន | 0 | 1 | 0 | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | ||||||
| D, | AND | L | AND | T មាន | AND | ? | AND | AND | ស | ន | នេះ |
Jump back to menu 9 after the selection
menu 141
| ៛ | 0 | 1 | 3 | 4 | 0 | . | 0 | M បាន | 2 | . | 0 | M បាន | |||||||
| D, | AND | L | AND | T មាន | AND | ? | AND | AND | ស | ន | នេះ |
Jump back to menu 91 after the selection
menu 15
| T មាន | X បាន | : | នេះ | ន | ៛ | X បាន | : | នេះ | ន | ||||||||||
| P បាន | IN | ស | ក្រុមហ៊ុន H | នេះ | k | T មាន | នេះ | ស | មួយ | IN | AND |
Left and right keys to move the cursor,
Up and down keys to change state.
OK key to return to menu 2
Escape key back to menu 2
MENU returns to menu 5.
menu 16
| ស | AND | T មាន | T មាន | 0 | 1 | ៛ | 0 | 1 | គ | ក្រុមហ៊ុន H | មួយ | ន | ន | AND | L | ||||
| T មាន | នេះ | ខ | នេះ | មួយ | ៛ | D, | ? | AND | AND | ស | ន | នេះ |
Left and right keys to move the cursor,
OK key to return to menu 2
menu 17
| ស | AND | T មាន | D, | មួយ | T មាន | មួយ | គ | នេះ | M បាន | P បាន | នេះ | ៛ | T មាន | ||||||
| 2 | 3 | 0 | 4 | 0 | 0 | AND | IN | AND | ន | នេះ | តារា K | ? |
Left and right keys to move the cursor, up and down keys to select
OK key to return to menu 2
Escape key back to menu 2
MENU returns to menu 5.
channel size parameter calculation method reference
The maximum channel capacity of the system can be calculated using the following formula:
Rmax=6.75 x b x FEC x (188/204) x (1/(1+GD)) x (BW/8)
Rmax: The maximum capacity of the channel(Mb/s)
ខ: Coupling wave ratio function, QPSK ម៉ោងb=2, 16QAM ម៉ោងb=4，64QAMម៉ោងb=6
FEC: internal error correction code rate(1/2, 2/3, 3/4, 5/6, 7/8)
GD: ចន្លោះពេលយាម1/4, 1/8, 1/16, 1/32
BW: Bandwidth in M
According to the above formula, the maximum capacity of the channel can be calculated under a few parameters. The following table shows the information capacity under 8M bandwidth. ប្រព័ន្ធនឹងគណនាដោយស្វ័យប្រវត្តិនូវទំហំនៃស្ទ្រីមលទ្ធផលដែលបានអ៊ិនកូដដោយយោងទៅតាមប៉ារ៉ាម៉ែត្រឆានែលដែលបានកំណត់ ដូច្នេះទំហំនៃស្ទ្រីមលទ្ធផលមិនធំជាងសមត្ថភាពអតិបរមារបស់ឆានែលទេ។.
ចំណាំ
នៅលើទីតាំង L25 នៅលើក្តារ (ខាង U13, ទីតាំងគឺទទេនៅពេលចាកចេញពីរោងចក្រ) មួយ 0603 inductance អាចត្រូវបានបន្ថែមដើម្បីបង្កើនថាមពលទិន្នផល. តម្លៃអាំងឌុចេនបន្ថែមអាចយោងទៅលើរូបភាពខាងក្រោម.
Precautions for order customization
- FDD, ជាម៉ូឌុលបញ្ជូនតម្លាភាពនៃបណ្តាញ peer-to-peer ដែលមានច្រកបណ្តាញ RJ45. វាភ្ជាប់មកជាមួយម៉ូឌុល COFDM ពីរដែលមានប្រេកង់ខុសៗគ្នា. ប្រេកង់លំនាំដើមគឺ 340Mhz និង 590Mhz, អតិថិជនអាចកែប្រែវាតាមរយៈបន្ទះកំណត់រចនាសម្ព័ន្ធប៉ារ៉ាម៉ែត្រ.
- According to the default frequency of 340Mhz and 590MHz, the delivered accessories will contain the antenna of the default frequency. If you want to modify the frequency yourself, please let us know if we need to provide an antenna for the matching frequency.
- With the parameter adjust menu board and screen, your client needs one to modify the parameter.
When the parameters are adjusted well, they can be taken down. Except for your order quantity, please tell me how many pcs of the menu board and screen you need.
voice over ip radio system передатчик вай фай
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