• MA-902 Gigabit Network Time Server Support Multi-mode Satellite/4G Network (6 Gigabit Port + 30m Mushroom and 4G Gain Antennas)

MA-902 Gigabit Network Time Server Support Multi-mode Satellite/4G Network (6 Gigabit Port + 30m Mushroom and 4G Gain Antennas)

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MA-902 Gigabit Network Time Server Support Multi-mode Satellite/4G Network (6 Gigabit Port + 30m Mushroom and 4G Gain Antennas)

Features:

- Multi time source synchronization: the device can support three types of time sources, and users can choose and configure them according to their own needs. High precision, global coverage GNSS global satellite navigation system; Convenient and wirelessly connected 4G network; A first level master clock with strong stability and high security.
- Based on the MA-802 series products, MA-902 upgraded various interfaces and performance to provide superior performance and higher stability, ensuring that the product can unleash its maximum potential.
- To adapt to various application scenarios, we provide multiple time interfaces and protocol output options, allowing you to choose your usage more flexibly:
  Main network port: supports NTP, PTP, MODBUS-TCP, MODBUS-UDP [applicable to computers, servers, switches, monitoring, network clocks, etc.]
  10MHz: supports output of 10M frequency, square wave [applicable to scientific experimental equipment, communication equipment, measuring instruments]
  IRIG-B code: supports IEEE-1344, GJB 2991A-2008 [applicable to aerospace equipment, power systems, industrial automation equipment]
  1PPS: PPS pulse width 100MS [applicable to GPS receivers, scientific instruments, measuring equipment, etc.]
- WEB management, convenient and fast: with WEB webpage management, you can easily view status and configure parameters, which is convenient, fast, and easy to operate.
- Time servers use various methods to ensure the security and accuracy of time. By setting the time deviation range, effective time range, and satellite deception alarm, we ensure that your system clock is always stable and accurate.
- After multiple rigorous technical inspections and certifications by authoritative institutions, including 20 inspection items, the product has passed quality inspection and you can use it with confidence.

Satellite Receiver:
- Adopting domestically produced professional timing satellite receiving modules
- Supports for Beidou (DBS), GPS, GLONASS, GALILEO satellite constellations, and can freely combine working modes
- Support constellation priority selection, default priority for Beidou
- Support antenna delay adjustment
- Support antenna short circuit, open circuit, signal interference, and deception signal detection
- RF input impedance: 50Ω
- Antenna gain: 5~35dB
- BDS B1: 1561.098MHz, GPS L1: 1575.42MHz, GLONASS L1OF: 1602MHz
- Galileo E1-B/C: 1575.42MHZ
- First positioning time: cold start < 28s, hot start < 1s, re-acquisition < 1s
- Sensitivity GNSS, tracking -147dBm, acquisition -160dBm, hot start -155dBm, re-acquisition -158dBm
- UTC accuracy: better than 20ns

4G Network Signal:
- Adopting low power consumption 4G LTE Cat.1 module
- Supports frequency bands LTE-TDD: B34/B38/B39/B40/B41
- Supports frequency bands LTE-FDD: B1/B3/B5/B8
- Typical accuracy: ≤ 50ms
- Supports for China TELECOM 4G network
- Support configuring 4 NTP server addresses for optimal synchronization

Time Output Protocol and Interface:
NTP Protocol:
- Synchronization accuracy: LAN≤1ms, typical accuracy of WAN≤50ms
- Can respond to up to 100000 NTP requests per second
- Support for NTPv1, v2, v3, v4, SNTP, NTP Broadcast, NTP MD5
- Supports up to 40 NTP whitelist addresses (clients outside the whitelist will be prohibited from accessing)
- Support synchronous recording and real-time uploading to the central platform
- Support saving synchronization records of 100 clients

PTP Protocol:

- Support for PTP Master mode
- Support for IEEE1588v2, gPTP
- PTP synchronous precision ≤ 100ns
- Support for UDPV4 and IEEE 802.3 mode
- Support for E2E mode

1PPS:
- PPS pulse width: 100MS
- Rising edge and whole second deviation after locking the satellite ≤ 100ns
- Level: TTL
- Interface type: BNC

10MHz:
- Support output 10M frequency, square wave
- Level: TTL
- Interface type: BNC

Timekeeping Unit:
- Built-in time backup battery, supports RTC power-off timing.
- Crystal oscillator stability (ppm): ±20 ~ ±0.5
- Crystal oscillator annual aging rate (ppm): ±3 ~ ±1
- Time deviation after 1 day of lock loss: ≤60ms

Time Safety:
- To prevent obtaining incorrect times from malicious or unreliable time sources, the time server supports time security settings including:
a. Support maximum synchronization deviation setting
b. Support setting of effective time range
c. Support out of range alarm

Display Screen:
- Adopting a 4.7-inch VA color screen and supporting display brightness adjustment.
- Support displaying current year, month, day, hour, minute, second, week, IP address, NTP synchronization times, number of satellites, mobile network signal status, and synchronization time source.
- Support operation status, fault, and lock indicator light reminders.

Electrical Parameter:
- Power supply: AC 100 - 240V
- Host working temperature: -10℃ ~ +70℃
- Antenna working temperature: -40℃ ~ +75℃
- Storage temperature: -45℃ ~ +85℃
- Humidity: 95% no-condensing

Others:
- Support up to 5 servers for multi machine hot backup, automatically switching to normal servers in case of failure.
- Supports binding 6 IPs to a single network port.
- Supports IPv4 and IPv6.
- Support setting static routing.
- Support time server anti-ping client.
- Support obtaining time from higher-level NTP, up to 5 higher-level NTP, and automatically select the optimal higher-level NTP.
- Support the SNMP v2 network management protocol to obtain the main status of the device.
- Support calibrating internal crystal oscillators through satellite modules.
- Support remote firmware upgrade via web.
- Support switching between Chinese and English on web pages, and can be extended to other languages.
- Support manual setting of device time, time zone, and time safety range.
- Support web whitelist configuration.
- Support daylight saving time (can choose the effective range of time output)

Package Included:
- 1 x Time Server
- 1 x Power Cable
- 1 x 30m Mushroom Antenna
- 1 x Antenna Fixing Bracket
- 3 x Expansion Screws
- 1 x User Manual
- 1 x 4G Gain Antenna


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