GlobalTime GTT030 1U Rack Mount Time Server with TOD Output

 NTP Time Server GTT030     Key features: Synchronization optios:GPS,GLONASS (optional) Adopt RFC1119/1305 NTP protocol (Network Time Protocol) to transfer time RFC1769/2030 SNTP protocol (Simple Network Time Protocol) support Different client programs support: Windows 98/2000/NT/XP, Linux, Unix, etc One 10M/100M adaptive network interface 20,000 terminals support (Terminal 1 minute sync time)   Performance Server Time Level: Stratum 1 Server time precision: 1ms Precision of client time: 10ms Timing capacity: >20,000 (Terminal sychronization: 1 time per minute) MTBF:> 90,000 hours         Network protocol support       RFC 1119/1305 NTP v2/v3/v4 RFC 1769/2030 SNTP v2/v3/v4 10M/100M adaptive Ethernet SSH FTP DHCP       Power supply and the environment: Power supply: 10W, 110 ~ 264V AC Temperature: 0 ~ 50 ℃ Relative humidity: 0 ~ 90%   Installation: 1U standard rack mount   The device structure   CE/RoHS certified     The device description Figure 1-1  The front panel description   The front panel is as shown above. The interface functions are as follows: Monitoring: local monitoring serial port, DB9 public outlet, RS232 electrical level Network: 10/100M Base-T adaptive network port, RJ45 connector 2 Indicator lights: one indicates the power while the other indicates the status, both ofthem indicate the device working state   Figure 1-2 The back panel description     The back panel is as shown above. There is a power socket with a fuse on the back panel. After opening the fuse base, there are a primary and a reverse fuse with specification of 0.5A on each side to facilitate users’ replacement. In addition, there is also an antenna plug as well as 50 ohm BNC Socket.   Table 2-1 Antenna Specifications

Frequency range	1575±5MHz;	RF connector	N-type connectors
Polarization	Right-hand            circular polarization	Installation	Thread (M24 × 1.5) connection
Antenna gain	≥3.5dB;	Volume	φ96×126mm;
Amplifier gain	≥37dB;	Operating temperature	-45℃~85℃;
Noise coefficient	≤1.5dB;	Storage temperature	-50℃~90℃;
Interference suppression	25dB(f0±100MHz);	Humidity	0~100%
Power consumption	3V×20mA;