Product Details

wireless link network equipment Ethernet wireless transceiver

Place of Origin Guangdong, China
Brand Name Safe Guard
Model Number SG-TDD20

Product Features

Product Description

wireless link network equipment Ethernet wireless transceiver

TDD-COFDM is our new NLOS(non-line of sight) two-way data transmission system and wireless mobile emergency communication private network, which is independent of telecom operators wireless network. 


Its confidentiality,security, mobile performance are better than Telecom operators. Also, it is a fully transparent data encryption transmission emergency security network. 


TDD-COFDM multiplexing technology to channel resources in time through time slot, frequency through a large number of sub carriers to flexibly allocated to multiple users, and in a single frequency to maximize the realization of multi user access. 


System occupy relatively narrow-band air frequency (4/8MHz)and strong anti-multipath interference ability to overcome simulation technique and the high-speed mobile data transmission under multipath reflections and nuisance caused by occlusion, then achieved in a complex environment transfer: data packing form, audio and video data, serial asynchronous data, Miniature volume, precision design, lightweight and easy to carry that commonly used in short distance high speed wireless data transmission and on air long distance high speed wireless data transmission purposes.

Detailed Images

Features of wireless link network equipment Ethernet wireless transceiver

1. Advancement: TDD-COFDM channel modulation technology, support fast-moving,ultra-wide band, and fully transparent transmission.

2. Security: private network, private communication transport protocol, sole synchronization code and AES encryption. and also customer manually customize the secret key

3. Flexibility: transparent transmission of IP data channel, supports multi-user access.

4. Scalability: all-digital network, is compatible with all IP data transmission equipment.

5. Bit rate can up to 921600bps;

6. Support protocol PTP &PMD network technology;

7. Support non-line of sight(NLOS) high speed mobile transmission

8. Standard RJ45 Ethernet and RS485/RS485/RS422 data interfaces;

9. Built in with small LCD screen that shows the signal working status.

10. Available frequency: 330-430MHz/ 430-530MHz,or 2.4GHz (option). 

Technical Peformance

1. Multi-frequency network base stations,single base station same frequency network, the same frequency network with bidirectional communication, high spectrum efficiency;

2. Flexible allocation of channel resources to achieve PTP, PTMT and multipoint-to-multipoint two-way communication;

3. Multiple channel bandwidth and a variety of modulation mode function;

4. Flexible TDD slot allocation model to meet a single-frequency but multi-user access, not only save the spectrum but also to reduce power consumption;

5. Spectrum sensing, perception slot, upstream bandwidth sensing function;

6. Strong diffraction ability and anti-multipath capability

7. High-sensitivity receiver.When receive level is -110dBm, can still ensure BER <10E-5 and frame error rate <1%. Powerful error correction capability;

8. Low PAPR, high power amplifier efficiency, low power consumption;

9. Can transmit video audio and etc signals synchronous,high speed.Velocity >600km/h.

10.Digital signal processing, a strong system of confidentiality, stability and reliability.

Parameters
 wireless link network equipment Ethernet wireless transceiver
Ethernet 
Standard RJ-45
RS-232/422/485 data
Two or Three pin terminals
Power supply
DC12V, Four pin terminals
RF connector
SMA female
Modulation
TDD_COFDM, time division duplex mode
Working mode
Full duplex
Working frequency
330-430MHz/ 430-530MHz,or 2.4GHz (option). step in 1MHz

other frequencies can be customized
RF power
20W 
RF bandwidth
4/8MHz
Correction mechanism
32bit of CRC, ARQ
Transfer Protoco
standard TCP / IP, transparent transmission,serial asynchronous
Data Rate
6.5Mbps ( both video and data occupy the same channel)
Baud rate
7200 ~ 921600bps  (automatically assigned)
Data type
10 / 100Bate-T Ethernet, RS-232, RS-422, RS-485 standard
Audio channel
analog audio intercom interface (non-Open)
BER
≤10-6
Receiving sensitivity
-103dBm
Networking format
point-to-multipoint
Model
SG-TDD20 wireless link network equipment Ethernet wireless transceiver
Encryption
128bit AES (Optional 256bit AES)
Ethernet
10 / 100BaseT, Auto-MDI / X, IEEE802.3

TCP, UDP, TCP / IP, TFTP, ARP, ICMP, DHCP, HTTP, SNMP, FTP, DNS
Parameter Control
adjustable parameters through the LCD panel
Built-in battery
12000mA or remove
Working time
6 hours
Working temperature
-40 ℃ ~ 85 ℃
Dimension
210 * 133 * 54mm
Weight
2.5kg
Application


Testing Equipment

Each wireless video transceiver/bridge goes through strict and professional testing.

Our Service

Professional manufacturer in wireless video audio transmitter and receiver.

* One year free warranty;

* Three months for free spare parts (Replacement parts will be charged after a year);

* 24-h technical guidance;

* One-stop ODM/OEM solution;

* Over 15 years’ experience in studying, designing and manufacturing in wireless AV transmission area;

* Direct plant source, offering you top quality in competitive price.

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