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OPTOKON OFT-820-POF Instruction Manual

Loss test set
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OFT-820-POF
Loss Test Set
INSTRUCTION MANUAL
is registered trademark of OPTOKON, a.s. Other names and trademarks mentioned herein may be the
trademarks of their respective owners.
OPTOKON, a.s., Cerveny Kriz 250, 586 01 Jihlava, Czech Republic
tel. +420 564 040 111, WWW.OPTOKON.COM, INFO@OPTOKON.CZ
10/09/2024

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Summary of Contents for OPTOKON OFT-820-POF

  • Page 1 OFT-820-POF Loss Test Set INSTRUCTION MANUAL is registered trademark of OPTOKON, a.s. Other names and trademarks mentioned herein may be the trademarks of their respective owners. OPTOKON, a.s., Cerveny Kriz 250, 586 01 Jihlava, Czech Republic tel. +420 564 040 111, WWW.OPTOKON.COM, INFO@OPTOKON.CZ...
  • Page 2 OPTOKON, a.s. Other names and trademarks mentioned herein may be the trademarks of their respective owners All rights reserved. No parts of this work may be reproduced in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording, taping or information storage and retrieval systems - without the written permission of the publisher.

  • Page 3: Table Of Contents

    OFT-820-POF INSTRUCTION MANUAL Contents Introduction ....................4 Features ....................... 4 Application ....................4 Standard accessories ..................5 Specifications ....................6 Safety information ..................7 Battery care .................... 8 Device care .................... 8 Power Meter Adapter exchange ............... 9 Device and button function description ............10 General description ................

  • Page 4: Introduction

    OFT-820-POF INSTRUCTION MANUAL 1 Introduction The OFT-820-POF series Loss Test Set is designed for POF – Plastic Optical Fiber network testing. It combines two optical test equipment – Light Source and Power Meter in the same box. The optical Light Source fulfills all the necessary technical requirements for field POF network measurements.

  • Page 5: Standard Accessories

    OFT-820-POF INSTRUCTION MANUAL 4 Standard accessories • SmartProtocol PC software • Two IN/OUT adapters according to ordering code • Power charging adapter • Hard carrying case • USB connection cable • Calibration certificate Optional IN/OUT adapters: TE-APF-FC TE-APF-SC TE-APF-ST TE-APF-250...

  • Page 6: Specifications

    OFT-820-POF INSTRUCTION MANUAL 5 Specifications Power Meter Note: Photodetector 3 mm Si Working wavelengths 650 nm, 850 nm can be customized Uncertainty ± 5% Resolution Dynamic range -65 dBm to +10 dBm 650 nm, 850 nm Light Source Wavelength 650 nm, 850 nm...

  • Page 7: Safety Information

    OFT-820-POF INSTRUCTION MANUAL 6 Safety information OFT-820 Light source complies with the following safety classifications: IEC825-1 and 21CFR1040: Class1 This applies to LED options up to 1 mW. Devices in this category are classified as safe for use by technicians under normal viewing, provided that magnifying devices are not used.

  • Page 8: Maintenance

    OFT-820-POF INSTRUCTION MANUAL 7 Maintenance 7.1 Battery care The OFT-820 comes equipped with a built-in charger and is powered by LiPol type battery (standard accessories). • Charging – via USB port (PC) or by using external USB power charging adapter (standard accessories) •...

  • Page 9: Power Meter Adapter Exchange

    OFT-820-POF INSTRUCTION MANUAL 7.3 IN/OUT Adapter exchange The OFT-820-POF comes equipped with an IN/OUT adapter set. The adapter set includes adapters specified in order according following ordering codes: Optional adapters: TE-APF-FC TE-APF-SC TE-APF-ST TE-APF250 TE-APF-HFBR TE-APF-220 IN / OUT adapters mounted •...

  • Page 10: Device And Button Function Description

    OFT-820-POF INSTRUCTION MANUAL 8 Device and button function description 8.1 General description Power meter and Light souce ports Calibration label LCD display USB port Operating keys (charging) BL key ON/OFF key [ON/OFF] Press to turn the unit on. Press to turn the unit off.

  • Page 11: Power Meter

    OFT-820-POF INSTRUCTION MANUAL 8.2 Power meter 8.2.1 Menu #1 –Absolute power measurement mode In the absolute power measurement mode the absolute value of the optical signal in dBm units is shown on the display. This screen will appear after the device is switched on and information regarding the type of device, serial number and firmware version will appear.

  • Page 12: Menu #2 - Relative Power Measurement Mode

    OFT-820-POF INSTRUCTION MANUAL 8.2.2 Menu #2 – Relative power measurement mode In the relative power measurement mode is on the value of optical insertion loss in dB units which corresponds to performed reference is shown on the display. Reading the display: µ...

  • Page 13: Menu #3 - Navigation

    OFT-820-POF INSTRUCTION MANUAL 8.3 Menu #3 – Navigation [LS] Goes to Light source menu#4. [BACK] Returns unit into absolute or relative power measurement mode (unit dBm or dB). Goes to the menu #1 or #2. [MEM] Goes to Memory menu #5.

  • Page 14: Light Source

    OFT-820-POF INSTRUCTION MANUAL 8.4 Light source 8.4.1 Menu #4 – Light source menu Reading the display: battery status 650 nm LS OFF indicator   [ λ] active output port Press the button to start / stop light source [MOD] Selects the modulation: CW –...

  • Page 15: Menu #5 - Working With The Internal Memory

    OFT-820-POF INSTRUCTION MANUAL 8.5 Menu #5 – Working with the internal memory The memory of OFT-820 has a structured, two-level organization. The results are stored in memory positions (FIBER) in folders called Cable (CABLE). See table below: CABLE001 FIBER001 FIBER002...

  • Page 16: Save Results

    OFT-820-POF INSTRUCTION MANUAL 8.5.1 Save results 1. By using [UP] [DOWN] select “SAVE RESULT” and press [OK]. 2. Select the cable (folder) using [- CABLE +], the unit will display the number of saved results under the selected cable, then press [FIBER].

  • Page 17: Browse Results

    OFT-820-POF INSTRUCTION MANUAL 8.5.2 Browse results 1. By using [UP] [DOWN] select “BROWSE RESULTS” and press [OK] 2. Select the cable (folder) using [- CABLE +], the unit will display the number of saved results under the selected cable, then press [FIBER].

  • Page 18: Erase Memory

    OFT-820-POF INSTRUCTION MANUAL 8.5.4 Erase memory 1. By using [UP] [DOWN] select “ERASE MEMORY” and press [OK]. 2. Press [CONFIRM] to erase memory or [NO] for return to main screen. 8.5.5 Home 1. By using [UP] [DOWN] select “HOME”. 2. Press [OK] for return to main screen.

  • Page 19: Measurement Loss

    OFT-820-POF INSTRUCTION MANUAL Measurement loss Basic theory Loss measures the signal degradation in a fiber optic cable. A light source injects an optical signal of the appropriate wavelength into the fiber and a power meter measures the received signal at the same wavelength.

  • Page 20: Method 6 - Two Devices

    OFT-820-POF INSTRUCTION MANUAL 9.2 Method C3 - two devices For method 6 two Master cords and one adapter are used to set reference. Method 6 cancels the effects of the Master Cords and one adapter for all subsequent measurements 9.2.1 Setting the reference 1.

  • Page 21: Measuring Loss

    OFT-820-POF INSTRUCTION MANUAL 9.2.2 Measuring Loss 1. Do not disconnect the Master cords from devices. 2. Disconnect one Master cord from adapter. 3. Connect the trace to be measured between the Master cords. An extra Master adapter is needed. 4. The power meter display will simultaneously report the value with the message “LOSS”...

  • Page 22: Method 6 - One Device

    OFT-820-POF INSTRUCTION MANUAL 9.3 Method C3 - one device For method 6 two Master cords and one adapter are used to set reference. Method 6 cancels the effects of the Master Cords and one adapter for all subsequent measurements. 9.3.1 Setting the reference 1.

  • Page 23: Measuring Loss

    OFT-820-POF INSTRUCTION MANUAL 9.3.2 Measuring Loss 1. Do not disconnect the Master cords from device. 2. Disconnect one Master cord from adapter. 3. Connect the trace to be measured between the Master cords. An extra Master adapter is needed. 4. The power meter display will simultaneously report the value with the message “LOSS”...

  • Page 24: Method 7 - Two Devices

    OFT-820-POF INSTRUCTION MANUAL 9.4 Method C2 - two devices For method 7 one Master cord are used to set reference. Master cord will be cancelled out for all subsequent measurements. 9.4.1 Setting the reference 1. Connect Master cord to Light source port of first OFT-820 device.

  • Page 25: Measuring Loss

    OFT-820-POF INSTRUCTION MANUAL 9.4.2 Measuring Loss 1. Do not disconnect the Master cord from Light source port. 2. Connect the trace to be measured between the Power meter port and the Master cord that is attached to Light source. An extra Master adapter is needed.

  • Page 26: Method 7 - One Device

    OFT-820-POF INSTRUCTION MANUAL 9.5 Method C2 - one device For method 7 one Master cord are used to set reference. Master cord will be cancelled out for all subsequent measurements. 9.5.1 Setting the reference 1. Connect Master cord to Light source port.

  • Page 27: Measuring Loss

    OFT-820-POF INSTRUCTION MANUAL 9.5.2 Measuring Loss 1. Do not disconnect the Master cord from Light source port. 2. Connect the trace to be measured between the Power meter port and the Master cord that is attached to Light source. An extra Master adapter is needed.

  • Page 28: Setting Up Data Transfer

    1. Connect the OFT-820 to a PC using the USB cable provided and turn the OFT-820 on. The PC will prompt you to install the drivers for new hardware. Use the drivers provided by OPTOKON. These drivers will create a virtual serial com port. 2. Start the HyperTerminal Start >>...
  • Page 29 OFT-820-POF INSTRUCTION MANUAL 4. Choose the virtual serial port the OFT-820 is connected to, then click on OK Fig. 11: Settings of COM port. 5. Set “Bits per second” to 19200, then click on OK Fig. 12: Port settings.

  • Page 30: Data Transfer Via Smartprotocol

    OFT-820-POF INSTRUCTION MANUAL 6. Go to the menu in OFT-820 and push [MORE], [MEM], select [UPLOAD MEMORY], [OK]. The stored data will be transferred to the PC in this format: Fig. 13: Reading from the memory device. The data from this window can be easily copied to any other application.
  • Page 31 OFT-820-POF INSTRUCTION MANUAL Actual value Reference Wavelength Type and serial number Fig. 13: Window of HyperTerminal with basic command. 10.3 Data transfer via SmartProtocol Procedure, how to handle with SmartProcotol software, please see document: TEQ_02-07_EN-SmartProtocol-M...
  • Page 32 OFT-820-POF INSTRUCTION MANUAL Power loss and decibels Loss (dB) % Loss Power (mW) 0.00001 0.0001 0.001 0.01 0.10 10.9 0.13 12.9 0.16 14.9 0.20 16.8 0.25 18.7 0.32 20.6 0.40 36.9 0.50 49.9 0.63 60.2 0.79 68.4 1.00 74.9 1.26 80.0...

  • Page 33: Notes

    OFT-820-POF INSTRUCTION MANUAL 11 Notes ................................................................................................................................................................................................................................................................................................................................................................................................................

  • Page 34: Calibration, Service Center

    12 Calibration, service center OPTOKON, a.s. Červený Kříž 250 586 01 Jihlava Czech Republic tel.: +420 564 040 111 OPTOKON@OPTOKON.CZ WWW.OPTOKON.COM...

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Oft-820

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