The XHTF321N time code terminal can receive the Beidou/GPS satellite signal and the IRIG-B time code, and use the demodulated reference signal to accurately synchronize the time-frequency signal generated by the local frequency source, and finally output the IRIG-B time code, the local second pulse, and other time-frequency signals (you can replace the output board to customize different output signals), and provide NTP network timing service.
The XHTF321N time code terminal has a network management interface to facilitate monitoring and control of the working state of the device.
The XHTF321N time code terminal has an active/standby switch function and two main control modules. It can automatically switch seamlessly when there is a problem with the module, improving the overall stability and reliability of the device.
Features
● Stable and reliable receiving and demodulating functions;
● Can receive multiple timing signals;
● The main signal input and output adopts electrical isolation circuit to resist interference and damage;
● Flexible configuration of input and output signals according to user needs;
● Network management;
● With active and standby switching;
● Can receive external 10MHz frequency standard signal.
Specifications
Input Signal | Output Signal |
GPS Satellite Signal | 1PPS pulse |
RF Signal | GPS L1 band | Polarity | positive polarity |
Capture Time | Hot start <10s, cold start <60s | Level | TTL standard (optional: RS422/RS485) |
GPS Timing Accuracy | Better than 50ns | Synchronization Accuracy | <0.1μs |
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| Physical Interface | SMA/BNC |
Physical Interface | SMA/BNC | IRIG-B(DC) |
BD Satellite Signal | Level | TTLRS422/RS485 (optional: HCMOS) |
RF Signal | Beidou B1 band | Synchronization Accuracy | <0.2μs |
Capture Time | hot start <10s, cold start <60s | IRIG-B (AC) |
BD Timing Accuracy | better than 50ns | Amplitude | 0.5~10Vp-p |
Number of ways | 1 way | Modulation Ratio | 2:1~6:1 adjustable |
Physical Interface | SMA/BNC | Load | 600Ω balanced input |
IRIG-B (DC) | Physical Interface | SMA/BNC |
Demodulation Accuracyl | ＜0.2μs | NTP Network Timing |
IRIG-B (AC) | Timing Accuracy | better than 1ms |
Demodulation Accuracyl | ＜10μs | Network management interface | support SNMPv2 or custom communication protocol |
Physical Interface | SMA/BNC |
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10MHz Signal |
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Physical Interface | SMA/BNC |
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Internal Frequency Source Configuration |
High stable OCXO |
Frequency Accuracy | better than 5 × 10-12 / day |
Short-Term Stability | better than 3×10-11/s |
Daily Aging Rate | better than 5×10-10/day |
Dimension |
Width × Height × Depth (mm) | 443 × 176 × 400 |
19-inch 4U racking chassis |
Electrical Characteristics |
AC 220 × (1 ± 10%) V |
Environmental Characteristics |
Working Temperature | -10 ° C ~ +50 ° C |
Storage Temperature | -40 ° C ~ +65 ° C |
Main Functions |
(1) Has Beidou, GPS, B code receiving function |
(2) Has time display (year, month, day, day, hour, minute, second) function |
(3) Has clock-setting, automatic over tolerance synchronization, lead/lag function |
(4) B code delay correction range 0.1μs～±999999.9μs, step 0.1μs |
(5) Output multiple time code signals |
(6) Has fault prompt function and can monitor equipment status through network |
(7) Has active/standby switching function, which can switch modules manually or automatically. |
