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PON Fiber Optical Monitoring Alarm System (PON FOMA)

PON FOMA ( PON Fiber Optical Monitoring Alarm System) is integrated RTU ( Remote Test Unit )、Center Monitoring Server and its management software to be integrated operation、remote control、periodic fiber scan、predictive analysis and support the instant fiber with status information and alarm warning, accurate of long-term fiber data record, fiber analysis and management. RTU monitoring station is embedded Linux system which is with the advantage of high security, stability, efficiency.

Download the PDF for PON FOMA Specifications 

Application features

• This PON FOMA hardware is mutual related with its slotted devices and connected with its plug-in cards. The expansion type with its maintenance type is promoted greatly and protect client to the system investment effectively.
• Guarantee to minimum the system conflict, keep the system stability and maintenance with integrity and unified, so that the maintenance cost is significantly reduced.
• With 20 years OTDR professional production experience and design on demand in the system concept, we support client to streamline and increase the device at the best convenience
• Support the rigorous privilege function to manage the remote control and data transfer functions.
• The remote user-friendly graphical display as monitoring user interface in LAN and WAN.
• The embedded Linux system: with its high security system to avoid the virus invasion crisis.
• With remote control the embedded image: to monitor data center operation and maintain equipment as well as training from the remote site.
• Highly integrated structure design, which is easily to install and maintenance as well as easy operation.

 PON FOMA Architecture  

PFOMA Monitoring Scenario

Through the network connectivity, the TSC located at the control center remotely drives OTDR to perform various operations over the fiber. And ultimately, to identify the cause and exact breakdown location. Or issues alarms for other possible multifunctions.

      WDM：Modulates several data streams on a single fiber

        Terminal Filter (TF)：Filter 1650nm, almost 100% reflection

  Installation plan ( Two-layer topology ) 

     Site measurement-1                         Site measurement-2 

     Failure analysis-1                              Failure analysis-2

Hardware features 

•  Embedded system design to get rid of tradition structure, making the performance greatly enhanced .
• Centralized network architecture to reduce unnecessary expenditure .
• Highly integrated design, easy to install and maintain.
• “Design-On-Demand “concept can streamline and increase hardware based on customer demand.

Software features

•  Modular hardware & software design allowing hard-swap with overflow protection.
• Embedded Linux system：high security to avoid virus invasion crisis.
• Web-based management enables fully automated remote device upgrade.
• Full operations with various database, such as SQL, MySQL, Oracle, etc.

 RTU Specification

RTU monitoring station is formed by embedded micro processor module (MCU), OTDR module, Optical Power Measurement module (OPM), Optical Channel Switch module (OCS), Power module (POWER), Wavelength division multiplexing module (WDM) (option). 

                 mMMMCU (  Microcontroller Unit  module)  specification

The function of MCU module is to manage other devices and communicate with the monitoring center server. It can transmit the status of monitoring station to the monitoring center, or perform configuration and operating instructions from monitoring centers. Using embedded control systems, structures refined.

• Processor: ARM9,200MHz and above
• Dynamic RAM: 64MBytes and above
• Storage interface: SD card 2G Bytes and above
• Including RS-232C and USB external port
• With Watch Dog to monitor the system operation
• Windows CE 5.0 and above

Power (Power module) specification

Power module is an Intelligent Power. While Traditional power supply designs use analog ICs with fixed functionality to provide regulated power, the Intelligent Power Supply integrates a MCU for following power features：Digital On/Off control for low standby power, remote communications function feedback the power status, Power supply sequencing and hot-swap control, with light indication and power switch on the panel.

• Input two kinds of voltage with 48VDC and 90~240VAC, the electricity power for each module is output: +5VDC power supply
• The location for AC and DC is located at the backplane of the chassis
• With light indication and power switch on the panel

 PON OTDR (PON Optical Time Domain Reflectometer) specification            

PON OTDR test device is work with OCS device to find fiver cable fault location. PON OTDR can test and analysis the change of the optical path periodically according the parameter.

• Operation wavelength ：1625/1650 nm
• Dynamic range @ SNR=1，Pulse=20 us ： 36dB~40dB 
• X-axis resolution ： ≦  25 cm
• Y-axis resolution ： ≦  0.01dB
• Refraction index ：Between 1.4000 and 1.7000   range，each layer is 0.0001
• Accuracy：±(1m + 3 x10^-5 x Distance +Marker Resolution )
• Attenuation Dead Zone @ 0.01 msec and below：≦ 9 m
• Event dead zone @ 0.01 msec and below ：≦ 3 m
• Pulse width：at least support 8 pulse width：10 ns /30ns/100ns/300ns/1us/3us/10 us/20 us
• Maximum Sampling points：More than 128,000 points

OCS (channel selection module) specification

OCS is the abbreviation of Optical Channel Switch. OCS is a kind of tool with one or more optional transmitting ports. Its role is to switch or logically operate optical transmission line and the congregation of optical signal, simply means that you can use a optical fiber which is connected to a port and use it to connect to more ports by OCS switch.

• Channel number： 2/4/8/12/16/24/32/48 ports
• Passband: ±15nm@ 1310nm, ±20nm@ 1550nm and 1625nm
• Return Back Reflection : >  55dB
• Insertion loss: ≦1.0dB
• Switching time: ≦75ms
• Crosstalk: > 70dB
• Repeatability, in the room temperature after operation for 1 hr:≦ 0.1dB
• Life time: able to switch 10 million cycle min
• RS-485 port ( connect to AIM)

OPM ( Optical Power Measurement module ) specification

An optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device for testing average power in fiber optic systems. A typical optical power meter consists of a calibrated sensor, measuring amplifier and display

• Operation wavelength : 1310nm‚ 1550nm and 1625nm three segments
• Dynamic range‚ input optical power : -2.2 dBm ~ -65 dBm
• Accuracy:≦ 0.5 dB
• Resolution:≦0.1dB
• Linearity, between -10 and -55 dBm: ≦± 0.5 dB
• Output ports: 2/4/8/12/16/24/32 ports to select
• Build-in LP optical filter
• RS-485 port ( connect to AIM) 

TF (Terminal Filter module) specification

When a tunable light source or tunable laser send optical signal to OTDR Reflector, it will only reflect light signal with a fixed wavelength. By checking this reflected wavelength, people will know that this fiber channel is not broken and is in good condition. OTDR Reflector has both  ends of connector or one end of connector and another end of adaptor

• Pass Band：1260~1565 nm (1310nm, 1490nm, 1550nm pass)
• Reflected Band：1640~1660 nm (1650 nm reflect)
• Insertion Loss for Pass Band：< 0.1 dB
• Reflection Isolation in Pass band： > 15 dB
• Insertion Loss for Reflection Band：< 0.1 dB
• Transmision Isolation in Reflection Band ：> 20 dB
• Wavelength Drift vs. Temperature： < 10 pm/°C

GSM Server (Message system for mobile ) specification

Support multi language，One- to- many messages delivery，TCP/IP interface for secondary development ( HTTP web development interface is optional)

• Processor：ARM7
• Operation System ：uClinux
• Communication Network：10/100Mb
• Standard 1u Rack installation 
• Power：+/- DC ­48V (standard) , DC 24V or DC12V is optional

 Channel number： 2/4/8/12/16/24/32/48 por

Requirements

 Regular specification