Overview

The IR-140 Optical IRIG-B / 1 PPS Distribution Unit is a high accuracy multi-mode optical fiber distribution unit that can distribute optical IRIG-B and 1 PPS timing signals with nanosecond accuracy over long distances.

The IR-140 reliably converts electrical IRIG-B / 1 PPS signals to optical signals and vice versa, ensuring noise-free time synchronization for critical applications such as substations, telecom networks, data centers, and industrial automation. This product is offered as both IRIG-B transmitter and receiver, offering flexible optical timing distribution to multiple devices.

Optical IRIG-B / 1 PPS Distribution

IR-140-T – 1 PPS / IRIG-B Transmitter The IR-140-T transmitter converts a standard 1 PPS or IRIG-B electrical signal to an 850nm optical signal and transmits it over multi-mode optical fiber for long-distance transmission.

IR-140-R – 1 PPS / IRIG-B Receiver The IR-140-R receiver receives the Optical IRIG-B or 1 PPS signal and converts it to up to 4 isolated BNC outputs, allowing for accurate timing distribution to multiple systems simultaneously.

Features

Inputs

Transparent to Optical 1PPS / IRIG-B Input

BNC Outputs

Up to 4 1PPS/IRIG-B BNC outputs

User Configurable

IRIG-B Format

Power Supply Options

24V / 48V DC or AC

Highlights:

  • Transparent to Optical 1PPS / IRIG-B Input.
  • Nanosecond accuracy output.
  • Phase-synchronized output.
  • 48V DC or AC Power Supply options.

Technical Specifications

IR-140-T Inputs:
Inputs Type Number of Inputs Connector
1PPS / IRIG-B Pulse 1 BNC
IR-140-T Outputs:
Outputs Type Number of Outputs Connector
Optical 1PPS / IRIG-B 1 ST
IR-140-R Inputs:
Inputs Type Number of Inputs Connector
Optical 1PPS / IRIG-B 1 ST
IR-140-R Outputs:
Inputs Type Number of Inputs Connector
Optical 1PPS / IRIG-B 1 ST
Power Consumption:
  • 15V DC to 60V DC (48V DC nominal)
  • < 10W at ambient (steady state 24°C)
Power Supply Options:
  • 24V DC / 48V DC
  • AC (100V AC to 240V AC, 50/60 Hz) to 24V DC - External Adapter
  • 110V DC / 220V DC to 24V DC - External Adapter
Regulatory Compliance:
  • RoHS
  • CE Marking
  • Complies to IEEE and IEC standards
  • Transportation ETS 300 019 Class 2.3
Standards & Compliance:
  • IEC - EMC – Certified to EN 55032: 2005 / CISPR 32 Class A, EN 55024:2005, IEC 61000-4-2
  • CE – 2001/95/EC, 2006/95/EC, EN60950-1, EN61000-6-2, EN61000-6-4
  • FCC – FCC Part 15 Class A: Conducted Emission test on Power Line
  • FCC Part 15 Class A: Radiated Emission >1 GHz FCC, 6 GHz, on Power Line.

Applications

IR-140 Over Optical Fiber Distribution Unit Application Diagram
Optical IRIG-B / 1 PPS Distribution

Docs

Data Sheet (PDF)