PTP/NTP master clock synchronization

Product Overview:

LX-20A is a high-performance time server designed in China, with complete timing interfaces and numerous management interfaces, which can meet the timing requirements of large data centers. The device has good scalability and strong adaptability. It can be expanded to multiple time sources, and the hardware supports two time sources, BDS and GPS, and can also use handheld satellite receivers for timing.

According to the characteristics of large data centers, it can support ultra-long satellite antenna cables, rubidium atomic clocks for timekeeping, or regular handheld timing.

The device has a wealth of management interfaces, which is convenient for operation and maintenance, and can know the time synchronization status of clients in the network.

Main applications:

Enterprises, universities, hospitals, finance, data centers, Internet cloud computing, etc.

Main features:

Receive GPS, QZSS, GLONASS, BeiDou, GALILEO satellite system signals as a primary time server

Use RFC1119/1305 NTP protocol (Network Time Protocol) to transmit time

Support RFC1769/2030 SNTP protocol (Simple Network Time Protocol)

Different client programs support Windows, Linux, Unix, AIX, HpUX, FreeBSD and other operating systems

2-6 10M/100M/1000M adaptive network ports (expandable to 12)

Support constant temperature crystal oscillator or rubidium atomic clock to keep time

Unit time response capability: >30000 times/second

IP settings can be easily performed through the keyboard and display, which is convenient for installation and debugging

Support SNMP, and serial port can be used for login

Support satellite signal anti-interference and anti-deception alarm

Support HTTP, which can be managed through web login

Support external management software, which can detect the synchronization status of time server and client

Support 220VAC dual power supply

Main interfaces

1×BNC, supports GPS, QZSS, GLONASS, Beidou, GALILEO satellite system signals (expandable to two channels)

1×CONSOLE serial port: DB9-F, RS-232, 115200n81, management interface

6×RJ-45, 100/1000M adaptive NTP timing output interface, can be upgraded to 10G optical port

(expandable to 12×RJ-45, 100/1000 adaptive NTP timing output interface)

1×L1 Beidou 2nd generation antenna input, 50 ohm impedance, SMA interface

1×1PPS output, SMA interface

1×HDMI, display interface

1×USB, 5V3A power supply, data can be copied

Built-in frequency source

 Oscillator aging (months)

Standard: ±1E-7 OCXO: ±5E-9 Rb: ±1E-10 (after 1 month of continuous operation)

 Timekeeping accuracy: 1 day

Standard: 400us OCXO: 25us Rb: <1us (under normal conditions, after locking the GNSS signal for 3 days)

NTP service

First-level time server (locked to Beidou, GPS)

NTPv1, v2, v3, v4, support MD5 authentication and encryption

NTP unicast, multicast, broadcast

SNTPTelnet (RFC854) NTP Unicast, Broadcast, Multicast, Autokey

NTP client capability

30,000 NTP requests per second

Timing accuracy: <1ms

Physical specifications

Size: 19-inch standard 1U chassis

1U thickness: 44.45mm (thickness)

19-inch: 482.6mm (width) Depth: 450mm (depth)

Weight: 4.5Kg

Power requirements

2×AC220 (standard AC 220V power interface)

220VAC@15W typical value

Operating environment

Power supply: 100/220V AC, 50-60Hz, 30W, dual power supply operation

Temperature: 0°C to +40°C

Storage temperature: -10°C to +65°C

Humidity: 95%, no condensation

Protocols

SFTP,FTP

SYSLOG

HTTP/SSL/HTTPS

Telnet

IPv4/IPv6