Model Number: SG-TDD20-2-s Brand Name: SAFE GUARD Key Specifications/Special Features: Introduction:TDD-COFDM broadband wireless mobile emergency communication private network is independent of telecom operatorsIts confidentiality, security, mobile performance that is better than the telecom operators, also is a fully transparent data encryption transmission emergency security networkRadio channel coding using TDD-COFDM modulation technology, has ability of two-way transmission support at the same exactly frequency and saving spectrum resourcesWhatever, can enable real-time network IP transparent transmission and control and meet the two-way audio and video surveillance networkA base station can simultaneously achieve 255 mobile front-end managementReal-time monitoring from a central switching the monitor points equipment and corresponding base station working/standby state by a monitor central, which can be better for each mobile front-end monitoringUsed in special government emergency use, such as: police, fire, maritime coastal defense, waterways, ports, digital urban management and other departments.Specifications:Transmission mode: Full duplexTransfer protocol: standard TCP/ IP, transparent transmission, serial asynchronousData type: 10/100Bate-T Ethernet, industrial RS-232, RS-422, RS-485 standardAudio channel: customized analog audio intercom interface (non-Open)
Data rate: 2 - 8Mbps
Baud rate: 720 - 921600bps
Transmission delay: 50 - 80ms
Networking format: point-to-multipoint
BER: ≤10-6
Transmit distance: 1-3km NLOS on ground/40km LOS distance
1-100km LOS distance (on helicopter)
Receiving sensitivity: -103dBm
Physical interface section
Ethernet interfaces: RJ45
RS-232/422/485 physical interface: six pin terminals
Power input physical interface: six pin terminals
RF physical interface:SMA femaleTechnical parameters:Output frequency: 330-530MHz/2.4GHz, step in 1MHz (other frequencies can be customized)Output power: 5-20W adjustable
Working bandwidth: 4MHz / 8MHz adjustable
Encryption: 128bit AES (optional 256bit AES)
Correction mechanism: 32-bit of CRC, ARQ
Modulation: TDD-COFDM, timedivision duplex mode
Parameter control: adjustable parameters through the LCD panel
Operating voltage: DC 12V
Ethernet: 10/100BaseT, auto-MDI/X, IEEE802.3
TCP, UDP, TCP/IP, TFTP, ARP, ICMP, DHCP, HTTP, SNMP, FTP, DNS
Working temperature: -40 - 85°C
Built-in battery: 12000mA
Working time: 6 hours
Dimensions: 210 * 133 * 54mm