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Modular Kernel OTDR MK1000

$790
★★★★★
* Ref. Price

Description

Developed by FirstFiber Technologies, the Modular Kernel OTDR integrates core functional components including optical interfaces and data processing units. It exposes an external Ethernet interface to facilitate seamless secondary development, alongside a serial port designed for basic control operations such as status monitoring and module parameter configuration.
Featuring a compact, cost-effective, convenient, and highly efficient design, this module is engineered to precisely pinpoint real-time fault conditions across the entire optical fiber link. It is widely applicable to fiber deployment, routine maintenance, field operations, and failure analysis.

Operating Principle
The module operates by connecting to a host computer (PC or embedded system) via Ethernet. The host computer manages the entire workflow simply by issuing measurement commands to the OTDR module and receiving the returned data.

Secondary Development & Integration
Supporting user-defined secondary development, this module enables users to rapidly prototype their own professional OTDR instruments or optical fiber online monitoring systems. By only requiring the development of the human-machine interface (HUI/GUI), users can significantly shorten the OTDR R&D cycle. Additionally, the module can be effortlessly embedded into other optical communication equipment or systems to provide integrated OTDR functionality.

Key Features:

  • Plug-and-Play Ethernet Interface: Simplifies connectivity and integration.
  • High-Speed Data Transmission & Analysis: Ensures rapid and efficient processing.
  • Automated OTDR Trace Analysis: Delivers intelligent, automated event and fault identification.

RS-232 Serial Interface Configuration
The serial interface is primarily utilized for IP address queries and low-rate data communication. The default baud rate is 460800 bps, which can be modified via software commands.

ParameterValue
Default Baud Rate460800
Data bit8
Stop bit1
Parity bitNone
Flow controlNone

Ethernet Port Configuration
The Ethernet interface serves as the high-speed data communication port for the modular OTDR, primarily utilized for module control via Ethernet. The IP address configuration can be modified through either the serial port or the network port.

TypeRJ45 Ethernet Port
Speed10/100M
IP192.168.111.249
Mask255.255.255.0
Gateway192.168.111.1
Port5000


How to configure the IP address for the Modular Kernel OTDR MK1000 to enable Control by FirstFiber Technologies upper computer Software? please download the PDF.

Specification

Pulse Width3ns, 5ns, 10ns, 20ns, 30ns, 50ns, 80ns, 100ns, 200ns, 300ns, 500ns, 1000ns, 2000ns, 3000ns, 5000ns, 8000ns, 10000ns, 2000ns
Test Range0.1km, 0.5km, 1.25km, 2.5km, 5km, 10km, 20km, 40km, 80km, 125km, 180km, 260km
Event Dead Zone 1≤ 1.5m
Attenuation Dead Zone 2≤ 8m
Sampling Interval0.03 ~ 4 m
Maximum Sampling Point64000
IOR1.000000 ~ 2.000000
Test Distance Uncertainty±(0.75m+ Sampling interval +0.005%×Test Range)
Linearity±0.05 dB/dB
PowerTypical +12V (Limit Range +6V~+19V)
Consumption≤3W (25℃)
Communication InterfaceSerial port RS-232C, default baud rate 460800 (configurable)
Ethernet interface 10M/100M
Size150(W)×90(H)×30(D)mm
Working Temperature-10 ℃ to +50 ℃
Storage Temperature -40 ℃ to +70 ℃
Humidity≤ 95% (noncondensing)

Note
1. Typical Value. Pulse Width = 3 ns, Return Loss = 35 dB to 55 dB
2. Typical Value. Pulse Width = 3 ns, Return Loss = 55 dB

Model

ModelWavelengthDynamic Range
MK1000-S11550nm26dB
MK1000-S21550nm30dB
MK1000-S31550nm35dB
MK1000-S41550nm40dB
MK1000-S51550nm43dB
MK1000-A261625nm26dB
MK1000-A301625nm30dB
MK1000-A351625nm35dB
MK1000-A401625nm40dB
MK1000-A431625nm43dB
MK1000-B261650nm26dB
MK1000-B301650nm30dB
MK1000-B351650nm35dB
MK1000-B401650nm40dB
MK1000-B431650nm43dB
MK1000-D281310/1550nm28/26dB
MK1000-D321310/1550nm32/30dB
MK1000-D371310/1550nm37/32dB
MK1000-D421310/1550nm42/40dB
MK1000-D451310/1550nm45/43dB
MK1000-M1850/1300nm24/26dB
MK1000-T21310/1550/1625nm42/40/40dB
MK1000-T31310/1550/1650nm42/40/40dB
MK1000-Q11310/1550/850/1300nm28/26/24/26dB

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Packaging & Shipping

Standard Packaging

ModelQty/CartonNet WeightGross WeightSize
MK1000100.5 KG7 KG53x23x26cm

Non-Standard Packaging

ModelQty/CartonNet WeightGross WeightSize
MK100010.5 KG0.75 KG23x13x16cm

At FirstFiber Technologies, all test instruments are dispatched via DHL Air Express, reaching global destinations within 3 to 7 days. Please note that the downloadable shipping price list is for reference only. For precise shipping costs, please refer to the final quote provided by your sales representative.

FAQ

Q: What is the Modular Kernel OTDR MK1000?

A: The MK1000 is an OEM OTDR kernel module that integrates optical interfaces and data processing units into a compact form factor. It is designed for embedding into optical communication equipment, custom test instruments, and online fiber monitoring systems.

Q: How does software secondary development work with this module?

A: Instead of an OS-restricted SDK, FirstFiber provides the underlying TCP/IP communication protocol along with 16-bit Hexadecimal control command codes. This allows system developers on Linux, Windows, or embedded RTOS to directly send network sockets to trigger scans, configure parameters, and receive raw trace data.

Q: What communication interfaces and default network settings does it use?

A:

  • Ethernet Interface: 10/100M RJ45 port with default IP 192.168.111.249, Subnet Mask 255.255.255.0, Gateway 192.168.111.1, and Port 5000.
  • RS-232 Serial Port: Configured by default at 460800 bps baud rate (8 data bits, 1 stop bit, no parity, no flow control).

Q: What are the main physical and technical specifications?

A:

  • Dead Zones: Event dead zone ≤ 1.5 m and attenuation dead zone ≤ 8 m.
  • Power Requirements: Operating voltage limit range of +6V to +19V (typical +12V) with power consumption ≤ 3W at 25°C.
  • Dimensions: 150 x 90 x 30 mm.

Q: What wavelength and dynamic range options are available?

A: The module comes in various configurations, including single-mode (1550 nm, 1625 nm, 1650 nm), dual-wavelength (1310/1550 nm), multimode (850/1300 nm), tri-wavelength, and quad-wavelength options with dynamic ranges up to 45 dB.

Customer Reviews

4.9 / 5.0 ★★★★★ Based on 49 customer reviews
Alexander Wright
August 14, 2026

As a lead systems architect for optical network monitoring hardware, the MK1000 eliminated OS-dependency issues. Instead of forcing developers into restrictive SDKs, FirstFiber provides underlying TCP/IP protocol documentation and 16-bit Hex control command codes. We integrated this module directly into our custom Linux RTOS via standard network sockets, issuing scan parameters and pulling raw trace data through the 10/100M Ethernet port (default IP 192.168.111.249, Port 5000). With power consumption under 3W at 25°C, thermal management in dense remote rack enclosures is remarkably simple. Highly recommended for teams building proprietary GUIs.

Julianne Dubois
June 22, 2026

We deployed multiple MK1000-D45 units (1310/1550nm, 45/43dB dynamic range) for long-haul testing rigs. Optical performance matches full-sized benchtop OTDRs. The event dead zone of ≤ 1.5 m and attenuation dead zone of ≤ 8 m allow us to accurately resolve close-proximity splices and cascaded splitters near link ends. Furthermore, a power linearity of ±0.05 dB/dB ensures attenuation readings remain consistent across repetitive sweeps. It serves as a reliable OEM core for both lab-grade diagnostic tools and field monitoring equipment.

Lars Johansson
May 5, 2026

Physical integration of the 150 x 90 x 30 mm board into our equipment chassis was extremely straightforward. The dual-interface design offers great operational flexibility: we utilize the RS-232 serial port (configured at 460800 bps) for low-level status monitoring and initial IP assignment during manufacturing, while offloading high-speed trace streaming to the Ethernet port. The power supply accepts a wide input range of +6V to +19V (operating cleanly at typical +12V), simplifying our internal power rail architecture. Excellent module backed by solid protocol documentation.

Showing 3 of 49 top reviews.

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