EXFO EPM-500 User Manual
POWER METER/LIGHT SOURCE/
NETWORK TESTING
OPTICAL LOSS TEST SET
EPM-500/ELS-500/EOT-500
USER GUIDE
Copyright © 2006 EXFO Electro-Optical Engineering Inc. All rights reserved. No part
of this publication may be reproduced, stored in a retrieval system or transmitted in
any form, be it electronically, mechanically, or by any other means such as
photocopying, recording or otherwise, without the prior written permission of EXFO
Electro-Optical Engineering Inc. (EXFO).
Information provided by EXFO is believed to be accurate and reliable. However, no
responsibility is assumed by EXFO for its use nor for any infringements of patents or
other rights of third parties that may result from its use. No license is granted by
implication or otherwise under any patent rights of EXFO.
EXFO’s Commerce And Government Entities (CAGE) code under the North Atlantic
Treaty Organization (NATO) is 0L8C3.
The information contained in this publication is subject to change without notice.
Trademarks
EXFO’s trademarks have been identified as such. However, the presence or
absence of such identification does not affect the legal status of any trademark.
Units of Measurement
Units of measurement in this publication conform to SI standards and practices.
Patents
EXFO’s Universal Interface is protected by US patent 6,612,750.
ii
Contents
Certification Information .................................................................................. v
1 Introducing the EPM-500/ELS-500/EOT-500 .............................. 1
Main Features ................................................................................................... 1
Power Sources .................................................................................................. 3
Typical Applications .......................................................................................... 3
Conventions ...................................................................................................... 3
2 Safety Information ................................................................... 4
Electrical Safety Information ............................................................................. 4
Laser Safety Information (ELS-500 and EOT-500 without VFL) .......................... 4
Laser Safety Information (Units with VFL) ......................................................... 5
3 Getting Started ......................................................................... 6
Turning the Unit On and Off ............................................................................. 6
Activating Automatic Shutdown (Auto-Off) ...................................................... 6
Activating the Backlight .................................................................................... 7
Accessing and Navigating Setup Menus ........................................................... 7
Installing the EXFO Universal Interface (EUI) ..................................................... 8
Cleaning and Connecting Optical Fibers ........................................................... 9
4 Measuring Power or Loss (EPM-500 and EOT-500) ................ 10
Nulling Electrical Offsets ................................................................................. 10
Referencing Your Power Meter to a Source ..................................................... 11
Measuring Power or Loss ................................................................................ 12
Automatically Detecting Wavelength .............................................................. 14
Setting Pass/Fail Thresholds ............................................................................ 15
5 Using a Light Source (ELS-500 and EOT-500) or VFL .............. 16
Activating/Deactivating a Light Source or VFL ................................................. 16
Modulating the Source Signal ........................................................................ 17
Using Auto-Switching Mode ........................................................................... 17
Sending Source Power Value with Signal ........................................................ 18
6 Saving and Recalling Power/Loss Values ............................... 20
Setting Autonaming Scheme .......................................................................... 20
Saving, Recalling and Deleting Data ............................................................... 21
Transferring Data to a Computer .................................................................... 23
7 Maintenance ............................................................................ 24
Cleaning EUI Connectors ................................................................................ 25
Cleaning Detector Ports .................................................................................. 27
Recharging the Battery ................................................................................... 27
Replacing Battery ............................................................................................ 28
Recalibrating the Unit ..................................................................................... 28
Recycling and Disposal (Applies to European Union Only) .............................. 29
EPM-500/ELS-500/EOT-500 iii
Contents iv
8 Troubleshooting ...................................................................... 30
Solving Common Problems ............................................................................. 30
Reverting Unit to Factory Settings .................................................................. 31
Error Codes and Descriptions .......................................................................... 31
Contacting the Technical Support Group ........................................................ 32
Finding Information on the EXFO Web Site .................................................... 33
Transportation ................................................................................................ 33
9 Warranty .................................................................................. 34
General Information ....................................................................................... 34
Liability ........................................................................................................... 34
Exclusions ....................................................................................................... 35
Certification .................................................................................................... 35
Service and Repairs ......................................................................................... 36
EXFO Service Centers Worldwide .................................................................... 37
A Technical Specifications .......................................................... 38
Certification Information
F.C.C. Information
Electronic test equipment is exempt from Part 15 compliance (FCC) in the United
States. However, compliance verification tests are systematically performed on
most EXFO equipment.
Information
Electronic test equipment is subject to the EMC Directive in the European Union.
The EN61326 standard prescribes both emission and immunity requirements for
laboratory, measurement, and control equipment. This unit has undergone
extensive testing according to the European Union Directive and Standards.
DECLARATION OF CONFORMITY
Application of Council Directive(s): 73/23/EEC - The Low Voltage Directive
Manufacturer’s Name: EXFO ELECTRO-OPTICAL ENG.
Manufacturer’s Address: 400 Godin Avenue
Equipment Type/Environment: Industrial Scientific Equipment
Trade Name/Model No.: EPM-500 Power Meter, ELS-500 Light Source,
Standard(s) to which Conformity is Declared:
EN 60825-1: 1994/
A2: 2001
EN 61326: 1997/ A2:
2001
EN 55022: 1998/ A1:
2000
I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive and Standards.
Manufacturer
Signature:
Full Name: Stephen Bull, E. Eng
Position: Vice-President Research and
Address: 400 Godin Avenue Vanier, Quebec,
Date: December 22, 2004
Safety of Laser Products-Part 1: Equipment Classification, Requirement, and
User’s guide
Electrical Equipment for Measurement, Control and Laboratory
Use - EMC Requirements
Limits and methods of measurement of radio disturbance characteristics of
information technology equipment
Development
Canada
89/336/EEC - The EMC Directive
Vanier, Québec
Canada G1M 2K2
(418) 683-0211
EOT-500 OLTS
EPM-500/ELS-500/EOT-500 v
Introducing the EPM-500/ELS-500/EOT-500 1
1 Introducing the
EPM-500/ELS-500/EOT-500
This user guide covers the following products (unless otherwise specified,
descriptions apply to all):
³ EPM-500 Power Meter
³ ELS-500 Light Source
³ EOT-500 Optical Loss Test Set: combines both a power meter and a light source
Main Features
EPM ELS EOT
Ge or GeX detector with 6 calibrated wavelengths X X
Absolute power and link loss measurements X X
Automatic wavelength detection X X
No offset nulling of detectors required in normal operation X X
Multiple source configurations on a single port [EOT-500] or
on one or two ports [ELS-500]
Optional visual fault locator X X X
Transmission of editable power value with source’s signal for
automatic reference with compatible power meter
Transmission of wavelength to compatible power meter in
automatic wavelength or auto-switching mode
Modulated signal emission or detection (270 Hz, 1 kHz and
2 kHz) compatible with other EXFO units
Data storage on unit and USB transfer to a computer X X
User-configurable pass/fail thresholds with LED indicator X X
Automatic shutdown after 10 minutes of idle time (auto-off) X X X
XX
XX
XX
XXX
LCD display
Shoulder
strap eyelet
DC connector
Stand
Power meter
detector port
USB connector
Keypad
(EOT-500 shown)
Light source
ports
EOT-500 ELS-500EPM-500
Visual fault
locator port
Safety label
and serial number
(under the stand)
Quick reference labels
Battery compartment
EPM-500/ELS-500/EOT-500 2
Introducing the EPM-500/ELS-500/EOT-500 3
Power Sources
The units operate with the following power sources:
³ AC adapter (connected to standard power outlet—indoor use only)
Compatible car outlet adapter available upon request.
³ Li-Ion rechargeable battery (automatically takes over if you unplug the
AC adapter)
IMPORTANT
If the battery level becomes too low, the unit turns itself off.
Typical Applications
³ Transmitter power measurements (dBm and W)
³ Fiber-link loss testing (dB)
³ Component insertion-loss testing (dB)
³ Fiber identification with 270-Hz, 1-kHz and 2-kHz signals
³ Fiber installation and maintenance applications
³ FTTx: testing of passive optical networks (PONs)
Conventions
Before using the product described in this manual, you should understand the
following conventions:
WARNING
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury. Do not proceed unless you
understand and meet the required conditions.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. Do not proceed unless you
understand and meet the required conditions.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in component damage. Do not proceed unless you
understand and meet the required conditions.
IMPORTANT
Refers to information about this product you should not overlook.
2 Safety Information
Electrical Safety Information
WARNING
Use the AC adapter provided with this product
indoors only.
Laser Safety Information (ELS-500 and EOT-500 without VFL)
WARNING
Do not install or terminate fibers while a laser source is active. Never
look directly into a live fiber and ensure that your eyes are protected
at all times.
WARNING
Use of controls, adjustments and procedures for operation and
maintenance other than those specified herein may result in
hazardous radiation exposure.
Your instrument is a Class 1M laser product in compliance with standards
IEC 60825-1 Amendment 2: 2001 and 21 CFR 1040.10. Invisible laser radiation may
be encountered at the output port.
The product is safe under reasonably foreseeable conditions of operation but it may
be hazardous if you use optics within a diverging or collimated beam. Do not view
directly with optical instruments.
Note: Label shown for information purposes only. It is not affixed to your
product.
Note: Units without VCSEL sources are Class 1 products.
EPM-500/ELS-500/EOT-500 4
Safety Information 5
Laser Safety Information (Units with VFL)
Your instrument is a Class 3R laser product in compliance with standards
IEC 60825-1 Amendment 2: 2001 and 21 CFR 1040.10. It is potentially harmful in
direct intrabeam viewing.
The following label(s) indicate that the product contains a Class 3R source:
If VFL option is available
IEC 60825-1:1993+A2:2001
21 CFR 1040.10
LASER RADIATION
AVOID DIRECT EYE EXPOSURE
CLASS 3R LASER PRODUCT
λ: 650 ±10 nm
P
maximum < 5mW (into free space)
out
VFL LASER APERTURE
Affixed to back
(under the stand)
Indicated on
connector panel
3 Getting Started
Turning the Unit On and Off
When you turn off the EPM-500 or the EOT-500, it saves the current wavelength, unit
and reference power.
IMPORTANT
If you remove batteries (and the AC adapter is unplugged), the unit
will turn off without saving the above values.
If batteries are low (and the AC adapter is unplugged), the unit will
save the above values and turn off.
Note: Offset nulling values are always returned to factory settings.
To turn on the unit:
Press . The unit displays EXFO for a few seconds. You may use it immediately
under normal conditions.
To turn off the unit:
From normal operating mode, hold down a few seconds.
Source wavelength (EOT)
Batteries in use
Fiber number
AC adapter
plugged in
(with level)
Auto-off activated
Display
Data storage or recall modes
Power meter wavelength or
reference power (EPM/EOT)
Modulation values
Measured power/loss (EPM/EOT)
Active source wavelength (ELS)
Activating Automatic Shutdown (Auto-Off)
When auto-off is activated, the unit will turn off after
10 minutes of idle time.
Auto-off is activated by default when you turn on the
unit.
To deactivate/reactivate auto-off:
When unit is on, press .
EPM-500/ELS-500/EOT-500 6
Getting Started 7
Activating the Backlight
When operating the unit in the dark, use the backlight to make data on the display
more visible. The keypad buttons will also lighten for about 10 seconds.
Note: When backlight is activated, you must always press a button once to
lighten the keypad, then press the actual button you want.
To activate/deactivate the backlight:
From normal operating mode, press .
Accessing and Navigating Setup Menus
Setup menus differ in each model. You may access and navigate menus as follows:
³ Press repeatedly to switch between options in a menu level.
³ Press once to access a submenu from the main level.
³ Press to exit menus (one level at a time).
Note: Details about each menu option are given in this user guide.
EOT-500
Normal Mode
PM DATA SRC
P/F CAB 1
*
PREF
*: Default cable name
EPM-500 ELS-500
Normal Mode
PM DATA
P/F CAB 1
*: Default cable name
Normal Mode
SRC
*
PREF
Installing the EXFO Universal Interface (EUI)
The EUI fixed baseplate is available for connectors with angled (APC) or non-angled
(UPC) polishing. A green border around the baseplate indicates that it is for
APC-type connectors, as shown below:
Green border
indicates APC
option
To install an EUI connector adapter onto the EUI baseplate:
1. Hold the EUI connector adapter so the dust cap opens downwards.
indicates UPC option
Bare metal
(or blue border)
3
4
2
2. Close the dust cap in order to hold the connector adapter more firmly.
3. Insert the connector adapter into the baseplate.
4. While pushing firmly, turn the connector adapter clockwise on the baseplate to
lock it in place.
EPM-500/ELS-500/EOT-500 8
Getting Started 9
Cleaning and Connecting Optical Fibers
IMPORTANT
To ensure maximum power and to avoid erroneous readings:
³ Always clean fiber ends as explained below before inserting
them into the port. EXFO is not responsible for damage or errors
caused by bad fiber cleaning or handling.
³ Ensure that your patchcord has appropriate connectors. Joining
mismatched connectors will damage the ferrules.
To connect the fiber-optic cable to the port:
1. Clean the fiber ends as follows:
1a. Gently wipe the fiber end with a lint-free swab dipped in isopropyl alcohol.
1b. Use compressed air to dry completely.
1c. Visually inspect the fiber end to ensure its cleanliness.
2. Carefully align the connector and port to prevent the fiber end from touching the
outside of the port or rubbing against other surfaces. If your connector features
a key, ensure that it is fully fitted into the port’s corresponding notch.
3. Push the connector in so that the fiber-optic cable is firmly in place, thus
ensuring adequate contact.
If your connector features a screwsleeve, tighten the connector enough to firmly
maintain the fiber in place. Do not overtighten, as this will damage the fiber and
the port.
Note: If your fiber-optic cable is not properly aligned and/or connected, you
will notice heavy loss and reflection.
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