| parameters |
| 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 |
2 channels |
| Air contact |
1μS |
1μS |
C/E room pressure 300 V/50mA |
6 channels |
| Optical fiber output |
-0.14μS |
-0.06μS |
multimode, wavelength 850/1310 nm |
6 channels |
| IRIG-B Time Code |
TTL level |
-0.08μS |
0.01μS |
5V level |
2 channels |
| RS485 level |
0.12μS |
0.2μS |
Differential balance level |
10 channels |
| Optical fiber output |
-0.08μS |
0.01μS |
multimode, wavelength 850/1310 nm |
6 channels |
| (AC) AC code |
10μS |
10μS |
Transformer isolation output |
4 channels |
| Serial port |
RS232 |
0.18mS |
0.18mS |
DB9 interface |
2 channels |
| RS485/422 |
0.18mS |
0.18mS |
Phoenix terminal |
10 channels |
| Ethernet |
NTP/SNTP |
10mS |
10mS |
RJ45 interface |
2 channels |
| PTP |
0.2μS |
0.2μS |
RJ45 interface |
2 channels |
| 2.Input Signal |
| Name of clock source |
Technical parameters |
Remarks |
| Beidou-1 |
Receiver frequency :2491.75MHz |
Built-in |
| Carrier frequency :1615.68 MHz |
| 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 |
| Type of interface: multimode fiber, operating wavelength 850 nm or 1310 nm. |
| When the optical fiber is transmitted, the light should correspond to the high level, and the light should go out to the low level. |
| 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 ≤3.5 us/24H. |
| 3.Others |
| Name of parameter |
Parameters |
| Environmental parameters |
Working temperature :-20 to +70oC |
| Storage temperature :-45 to +85oC |
| 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) |
| 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. |
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