TemporaSync SY-1231

Modelo de pedido típico: SY-1231-BG-T-S

NTP Stratum 1 de LAN GNSS para armario. Disciplina BeiDou+GPS, reserva TCXO, un puerto 10/100M, más Modbus / 1PPS TTL / PULSE de minuto. Sin IRIG, sin OCXO, sin doble puerto ni doble alimentación. Up to 3840 NTP requests per second; Accuracy ±1–5 ms.

Adecuado para Hospital weak-current, industrial cabinets, security NVR, office/metrology; single LAN port. Planning N=⌊η×R/f_poll⌋.

No es para Hardware-stamped NTP / OCXO / IRIG-B (see SY-4096); or separated mgmt/timing ports, multi-gigabit, dual supply (see SY-8640).

TemporaSync SY-1231 1U chassis front panel

Shipping cabinet SKU. Delivers Stratum 1 after lock: single port, BeiDou+GPS, TCXO; Web and SNMP read-only for checks. Typical fit: hospital weak-current, industrial cabinets, security subnets.

En qué se diferencia del otro modelo

Line-up: SY-1231 single-port TCXO → SY-4096 half-width 1U stamp+OCXO+hardware time I/O → SY-8640 multi-port / dual supply (roadmap).

TemporaSync SY-4096 · TemporaSync SY-8640 · Cómo elegir

Specification summary

Timing protocol NTP v3/v4 (UDP 123)
Time reference GNSS 1PPS + TCXO discipline; industrial RTC holdover (DS3231 ±5 ppm class)
Constellation (order code BG) BeiDou + GPS (GN-T-S optional)
Ethernet 1× RJ45, 10/100M (single port; not dual-port redundancy)
Power Single path -S; IEC AC 220 V or DC050-T + external adapter (12–24 V DC); one inlet at a time
Management Web (HTTP Basic Auth) + front LCD; SNMP read-only (SNMPv2c)
Performance Up to 3840 NTP requests per second · sostenido 3840 · LOCKED, carga de laboratorio 24 h · ficha v1.4 (esa revisión no imprime fecha)
Accuracy (network NTP) ±1–5 ms · típico de laboratorio · LOCK, misma LAN; sello por software; ≠ 1PPS · ficha v1.4 (esa revisión no imprime fecha)
Planning N = ⌊η × R / f_poll⌋
Default IP 192.168.1.123/24, gateway 192.168.1.1
Factory traceability Factory gate; Web production record PASS/FAIL; SETID / firmware Build on the ship ticket

Interfaces

  • RJ45 (NTP + Web)
  • RS-485 Modbus
  • 1PPS OUT (3.3 V)
  • PULSE (Pin4 PPM)
  • GNSS antenna
  • LCD + single key

Incluye

  • Ethernet NTP service (LAN Stratum 1 after lock)
  • RS-485 Modbus RTU absolute time (UTC incl. ms)
  • TTL 1PPS output (3.3 V, GNSS second-edge buffered)
  • PULSE minute PPM (4-pin Pin4; 200 ms / 5 V after LOCK)
  • Web UI, SNMP read-only, event log and 24h quality export
  • Factory test record (SETID · Build · PASS)

No incluye

  • IRIG-B time code
  • OCXO
  • PTP / IEEE 1588 stack
  • NTS, IPv6 NTP server, NTP broadcast/multicast server
  • Dual Ethernet failover
  • HTTPS, SNMPv3, SNMP write

Important: GNSS second-edge / internal reference figures are not “nanoseconds on the NIC” or “nanosecond Modbus timing”. See accuracy layers in the datasheet.

Factory-tested, field-checkable, traceable after sale

Specs are written per channel. Each shipping unit passes a factory gate. Commission on-site with the datasheet, Web exports, and client checklist. Contract acceptance is client measurement—not a factory PASS lamp.

Factory-tested

Each SY-1231 is gated before ship: LOCK, LAN NTP, and 1PPS / PULSE / Modbus checked per channel. The Web UI shows a read-only factory record (PASS/FAIL); the ship ticket records SETID and firmware Build. Fixture thresholds stay internal; a PASS sheet without process detail can ship with the unit when required.

Field-checkable

The datasheet and interface annex give per-channel steps: scope the 1PPS jack and Pin4 minute pulse, NTP via the client checklist, Modbus via the register map. The LCD is for patrol; accuracy and events go out as event_log.csv and quality_24h.csv. Hospital sites also have a 10-step bring-up note.

Traceable after sale

Support needs SETID, firmware Build, and event_log.csv / quality_24h.csv. The Sync Assistant is an optional field health-check (SNTP / client status)—not a metrology certificate, and it does not change host time by default. The config command library is licensed. The factory gate EXE is production-only and not a public download.

QA wording: include/exclude and accuracy layers follow the shipping datasheet. For support, send SETID + Build plus event/quality CSVs. Do not put internal second-edge figures into NIC acceptance.