Einsof ES-1000D fiber monitoring system constantly and non-intrusively monitors wavelength quality and faults in the fiber.
The ES-1000D fiber monitoring system facilitates non-intrusive fiber optic network monitoring, providing carriers, dark fiber providers, utilities, and enterprises real-time network diagnostics and improved service level agreements (SLAs).
The device integrates an optical time domain reflectometer (OTDR) and an optical spectrum analyzer (OSA) into a 1U box for minimal rack space and improved CAPEX and OPEX. The ES-1000D saves costs and time as it reduces the need to send technicians to the field, and the need for dedicated test equipment.

Non-intrusive OTDR and OSA fiber monitoring
Remote real-time fiber optic network monitoring and diagnostics.
Flexible Design
The ES-1000D simultaneously monitors up to 16 fiber strands, eight on the OTDR and eight on the OSA, and operates standalone over dark fiber, lighted fiber, or a third party network without impacting network traffic. The device monitors the entire DWDM C-band spectrum and provides the optical spectrum, OSNR, and OTDR measurements of the fiber.
Powerful Feature Set
The ES-1000D consists of two mechanisms for monitoring live fiber optic networks: OTDR and OSA.
OTDR
The OTDR locates fiber cut by sending high powered optical pulses into the fiber and creating Rayleigh back-reflections. The returning signals are measured and calculated, indicating the accurate location and intensity of the fault. The OTDR supports GIS (Geographic Information System) using Rest API, enabling precise geographic location of disruption. This capability enhances operational efficiency, optimizes resource allocation, and ultimately supports meeting service level agreements (SLA).
The OTDR alerts the user of changes in the fiber quality and performance, and displayed graphically in Einsof SofWatch NMS.
Diagram of the OTDR

Graphical Display of the OTDR, from Einsof SofWatch NMS
OSA
The OSA enables the user to monitor the OSNR and optical spectrum of each fiber and shows a full, accurate and detailed picture of the wavelengths used in the fiber.
Diagram of the OSA

Graphical Display of the OSA, from Einsof SofWatch NMSFeaturesApplicationsBenefits
- The device can be used as an optical time domain reflectometer (OTDR), optical spectrum analyzer (OSA), or both
- Monitoring up to 16 fibers simultaneously, 8 by the OTDR and 8 by the OSA
- Controlled using Einsof web application or Einsof SofWatch™ NMS
- OTDR:
- Integrates 1:8 optical switch and OTDR
- 30dB fiber loss
- Embedded 1610nm OADMs
- Accuracy 15m
- Dead zone of 5m from transmitter
- OSA:
- Integrates 1:8 optical switch and OSA
- Embedded splitters
- Support full C-band
- Supports 50GHz or 100GHz ITG grid
- Measures the power, frequency and OSNR of the optical channels in the fiber
- 1U footprint 19″
- Dual AC/DC PSU
- Hot swappable fan unit
- Low power consumption
- Easy to use, easy to maintain