The GB8005 time synchronization system device provides accurate synchronization time signals to various power system automation devices by using the second synchronization signal and time information message sent by Beidou navigation system and GPS( Global Positioning System) satellite.
parameters | |||||
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1. Output Signal | |||||
Timing signal type | Interface Type | Timing accuracy | Interface parameters | Number of interfaces | |
Beidou-1 | GPS | ||||
Pulse | TTL level | -0.14μS | -0.06μS | 5V level | 1 channels |
Frequency | TTL level | 5V level | 1 channels | ||
IRIG-B Time Code | RS485 level | 0.12μS | 0.2μS | Differential balance level | 1 channels |
Serial port | RS232 | 0.18mS | 0.18mS | DB9 interface | 2 channels |
RS485 | 0.18mS | 0.18mS | Phoenix terminal | 2 channels | |
Ethernet | NTP/SNTP | 10mS | 10mS | RJ45 interface | 2/4 channels |
PTP | 0.2μS | 0.2μS | RJ45 interface | 2 channels | |
2.Input Signal | |||||
Name of clock source | Technical parameters | Remarks | |||
Beidou-1 | Receiver frequency :1561 MHz (B1 signal) | Built-in | |||
Acceptance sensitivity :-127.6 dBmW | |||||
Capture time :35 S ﹤10 S; hot start and cold start | |||||
Timing accuracy :≤100 ns( unidirectional),≤20 ns( bidirectional) | |||||
GPS | Receiver frequency :1575.42 MHz (L1 signal) | Built-in | |||
Receiving sensitivity: capture <-160 dBW, tracking <-163 dBW | |||||
Capture time :200 S <25 S; hot start and cold start | |||||
Timing accuracy :≤100 ns (1pps versus UTC time) | |||||
Simultaneous tracking: no less than 4 satellites in cold start; no less than 1 satellite in hot start; up to 12 satellites can be tracked at the same time, parallel 12 channels. | |||||
IRIG-B Time Code | The IRIG-B code shall comply with the provisions of the IRIG Standard 200-04 and contain the year and time signal quality information (reference IEEE C37.118-2005), the time is standard Beijing time. | Built-in | |||
Adopt IRIG-B000 format. | |||||
An automatic time delay compensation correction technique is used to μs the timing accuracy better than 1 μs. | |||||
PTP input | With E2E and P2P two modes of timing. | Built-in | |||
Support one-step, two-steps working mode. | |||||
Core punctuality clock module | Adopt high precision constant temperature crystal frequency precision reaches 2 E-11 order of magnitude. | Built-in | |||
Self-service error ≤18 us/24H. | |||||
3.Others | |||||
Name of parameter | Parameters | ||||
Environmental parameters | Working temperature :-20 to +70 °C | ||||
Storage temperature :-45 to +85 °C | |||||
Humidity :<95% | |||||
Power supply | Power supply :220 V±20% or 110 V±20%,47 Hz-63 Hz | ||||
DC power supply :220 V±20% or 110 V±20% | |||||
Power consumption ≦15 W | |||||
EMC grade | Grade IV specified in the GB/T 17626-2008 | ||||
Alarm signal | Relay air contact (250 V,5A); Loss of satellite signals, power alarms, etc. | ||||
Appearance Weight | Standard 19" Case, height is 3 U, back pluggable structure, weight is 5 KG. Up to 8 slots are free to select various functional interface cards. |