Time Sync Devices
Our flagship product line. 1U/2U/4U master/slave clocks with multi-source time fusion (BeiDou + GPS + IRIG-B(DC) + PTP + BPL long-wave) and dual-channel hot-standby. Includes the YZ-9846 (compliant with SGCC "Four-Unification" Class-II clock spec) and self-controllable single- / dual-BeiDou variants.
Overview
Yinzhong Time Sync Devices (YZ-9810 / 9820 / 9830 master-slave clock family) are our flagship product line, deployed across power, rail transit, finance, government, and healthcare critical sites as the system-wide "time root."
Core Capabilities
- Multi-source fusion: BeiDou + GPS + Galileo + GLONASS + enhanced Loran long-wave + BPL + external IRIG-B input. Auto-best-source selection; loss of any single signal does not interrupt timing.
- Master/slave hot-redundant: 1U / 2U / 4U form factors with fully redundant critical paths. Failover < 50 ns.
- Multi-protocol output: NTP / SNTP / PTPv2 (IEEE 1588-2008 / IEC 61850-9-3) / IRIG-B(DC) / IRIG-B(AC) / 1PPS / 1PPM / DCF77 / TTL / RS-232/485 / fiber ST/SC
- Standards compliance: DL/T 1100.1 Class II ("Four Unification"), Q/GDW 11261, IEEE C37.238 power PTP profile
Typical Deployments
| Scenario | Recommended | Key Deliverables |
|---|---|---|
| 500kV / 220kV substations | YZ-9810 (2U master) | Dual BeiDou+GPS redundancy, Class-II report |
| Provincial / prefectural dispatch | YZ-9810 + YZ-9820 master/slave | Four-Unification pair, full PTP/NTP/IRIG-B |
| Internet data centres | YZ-9830 (1U NTP) | 6 independent NICs, Stratum-1 source |
| Hospitals / campuses | YZ-9820 + YZ-9580 sub-clocks | Hospital-wide NTP + LED digital clock network |
Deployment & Service
- Fast deployment: pre-provisioned SIM, BeiDou antenna kit, PTP profile templates — rack and cable on-site only
- Remote ops: SNMP v2c/v3, Syslog, HTTPS web UI, Modbus TCP telemetry
- Warranty: 3-year full warranty, 7×24 hotline, on-site < 24 h in the Southwest region for critical industries
Dispatch centres, 500kV/220kV substations, plant control rooms, smart grids, SOE bid projects
SGCC "Four-Unification"
YZ-9846 fully complies with the SGCC "Four-Unification" Class-II clock spec (with monitoring)
Multi-Source Time Fusion
Concurrent BeiDou + GPS + IRIG-B(DC) + PTP + BPL ingest with automatic source preference
Hot-Standby Master/Slave
Dual time-stamp channels keep the slave time base continuously available under any single failure
Self-Controllable Variants
Single- and dual-BeiDou variants compliant with the national self-controllable standard
Catalogue Selection
Choose YZ-9810 / YZ-9820 / YZ-9846 directly
- Standard 1U/2U/4U I/O
- Factory test certificate
- Standard warranty
Project Customisation
Custom I/O cards and alarm logic per site topology
- Custom I/O cards
- Tiered alarms
- Secondary development
- On-site commissioning
Long-Term Operations
Periodic inspection + spares + firmware upgrades
- On-site inspection
- Remote support
- Spare parts
- Firmware upgrades
- Dedicated technical manager
Master-Slave Clock System
YZ-9200 master-slave clock: a YZ-9810 master clock disciplines via BeiDou/GPS and distributes to the entire site through network switches. Supplied alongside the YZ-9580 LED digital clock family (332S / 422S/D / 5S/D / 42S/D), 35cm analogue slave clocks and Wi-Fi wireless analogue / digital slave clocks — for hospitals, airports, stations, plants and office campuses.
Dispatch Auto-monitoring
YZ-8000 is a provincial-and-prefectural-integrated dispatch automation monitoring system. It safeguards the secure, stable and efficient operation of grid automation systems — providing centralised monitoring of dispatch control systems, auxiliary facilities and machine-room environments across provincial and prefectural dispatch centres.
NTP Time Server
Flagship YZ-9811. Delivers precision NTP / SNTP / PTP timing and timestamp services to compute systems, process control, e-commerce, B2B and database clusters. Widely deployed in government, finance, healthcare, broadcasting and telecom core sites — traceable to BeiDou and the National Time Service Centre BPL long-wave.
Satellite Timing Security
Flagship YZ-9770 — in April 2022 it became the first device of its class in China to pass SGEPRI certification. Detects and isolates GNSS spoofing, jamming and suppression to deliver a "timing firewall" for grids and other critical infrastructure. Already deployed across SGCC Chongqing and other provincial grids.
Time-Sync Monitoring
A monitoring & testing family for substations, power plants, dispatch centres and data centres. Flagship models: YZ-9100 monitoring system, YZ-9900 benchtop tester, YZ-9910 handheld tester. Combined with YZ-9880 satellite common-view timing devices for traceable cross-station synchronisation.
Find the right model
Our engineers combine your site topology, protocols and alarm logic to recommend the right model and customisation.