The XHTF361 series time synchronization clock is a time synchronization device for power systems. It uses multi-reference source redundancy backup technology to output a variety of time information with high-precision time synchronization and punctual performance.
The XHTF361 offers users a variety of optional functional modules that can be used to solve a variety of applications in power systems with flexible configurations.
Features
● Flexible modular configuration;
● High accuracy and good performance;
● Support a variety of timing signals such as Beidou, GPS, PTP, IRIG-B code;
● Support NTP/PTP network time synchronization;
● Support SNMP network management, easy to manage and maintain.
Specifications
Internal Structure
The XHTF361A/B has 10 vertical slots, including 2 power board slots, 1 input board slot, 1 main control board slot, and 6 output board slots.

Slot Allocation Map
Module Configuration
Module Name | Module Description | Optional Feature Description |
POWER | AC 220V power board |
|
MIU1 | Input board, including GPS receiver, 2-port multimode fiber optic receiver, 2-port multimode fiber optic transmitter |
|
MIU2 | Input board, including GPS receiver, Beidou receiver, 2-channel multimode fiber receiver, 2-channel multimode fiber transmitter | With Beidou receiver |
MCU | The main control board contains 4 electric ports 10/100M network port and 1 channel DB9 serial output port |
|
Multimode fiber output 1 | Multimode fiber output board, 5-channel fiber optic transmitter | Supports B (DC), B (AC), pulse, serial output |
Multimode fiber output 2 | Multimode fiber output board, 10-channel fiber optic transmitter | Extended 5-way fiber optic transmitter; supports B (DC), B (AC), pulse, serial output |
Empty contact output | Static empty contact output board, 16 static empty contact output | Supports B (DC), B (AC), pulse, serial output |
RS485 output | 16-channel RS422/RS485 level signal output | Supports serial output |
RS232 output | 16-channel RS232 level signal output | Supports serial output |
TTL | 16-channel TTL level signal output | Supports B (DC), B (AC), pulse, serial output |
B (AC) output | 16-channel B (AC) signal output | Supports B (AC), output |
PTP | PTP board, 1 10/100/1000M PTP network port |
|
Input Signal
Beidou | GPS | IRIG-B (DC) |
RF Signal: Beidou B1 | RF Signal: GPS L1 | Time accuracy of the second Punctuality edge : better than 1μs |
Capture Time: Hot Start<10s, Cool Start<60s | Capture Time: Hot Start<30s, Cool Start<50s | Interface Type : optical fiber |
Timing Accuracy: Better than 50ns | Timing Accuracy: Better than 50ns |
|
Physical Interface: SMA | Physical Interface: SMA |
|
Output Signal
Pulse Signal | IRIG-B Code |
TTL Level:(1) Punctuality edge: rising edge, rise time <100ns(2) Rising edge accuracy: ≤1μs | IRIG-B(DC) Code:(1) Adopt IRIG-B000 format(2) Pulse Rise Time: <100ns(3) Jitter time: ≤200ns(4) Time accuracy of the second punctual edge: <1μs(5) Interface Type: TTL level, RS422, RS485 and Optical fiber |
Static empty contact:(1) Punctuality edge: rising edge, rise time<1μs(2) Rising edge accuracy: ≤3μs(3) Output mode: open collector(4) Maximum Uce voltage: 220VDC(5) Maximum Ice current: 20mA | IRIG-B(AC) Code:(1) Adopt IRIG-B120 format(2) Carrier frequency: 1kHz(3) Frequency jitter: ≤ 1% of carrier frequency(4) Signal amplitude (peak-to-peak): The amplitude is adjustable from 3V to 10V, and the modulation ratio is in accordance with 3:1~6:1.(5) Output impedance: 600Ω, isolated output by transformer(6) Time accuracy of the second punctuality: <10μs |
RS422/RS485:(1) ) Punctuality edge: rising edge, rise time <100ns(2) Rising edge accuracy: ≤1μs |
Optical Fiber:(1) ) Punctuality edge: rising edge, rise time <100ns(2) Rising edge accuracy: ≤1μs |
Serial Port Time Message |
(1) Baud rate: 1200, 2400, 4800, 9600, 19200, 115200 b/s optional(2) Output 1 frame per second or per minute, or output 1 frame (frame) according to request, or output in a user-specified manner(3) RS232 level interface: electrical characteristics in line with GB/T 6107-2000(4) RS422 level interface: electrical characteristics in line with GB/T 11014-1989(5) RS485 level interface: electrical characteristics in line with ANSI/TUA/EIA 485-A-1998(6) Optical fiber: When using fiber optic conduction, Lighting corresponding to high level, and the light is off corresponding to the low level. |
System Indicator
Punctuality Accuracy |
(1) Configure high stability crystal oscillator | <1µs/1h |
(2) Configure high stability Rubidium atomic clock | <1µs/24h |
Main Function
PTP Network Timing Function | NTP Network Time Synchronization |
(1) Supports IEEE 1588v2 protocol(2) Supports boundary clock mode, normal clock mode, and transparent clock mode(3) Supports BMC (Best Master Clock) algorithm and master clock source protection switching(4) Time synchronization accuracy: <100ns | (1) 4 independent NTP/SNTP network interfaces for 4-way network time alignment(2) Time synchronization accuracy: <10ms |
Dimension
Width × Height × Depth (mm) | 444× 132 × 297 |
19-inch 3U racking chassis |
Electrical Characteristics |
AC 220 × (1 ± 10%) V |
Environmental Characteristics |
Working Temperature | -10 ° C ~ +50 ° C |
Storage Temperature | -40 ° C ~ +85 ° C |