JDS Uniphase cORL-A1 User manual

cORL-A1
Optical Return Loss Meter
BN 2298/98.21
2008.11
English
BN 2298/21
BN 2298/22
BN 2298/23
Operating Manual

The description of additional features of the
device can be found at:
http://www.jdsu.com/test
Copyrights
This product or parts of this product are based on the Rec-
ommendations and/or Standards issued by the Standard-
ization Sector of the International Telecommunications
Union - ITU-T and/or the European Telecommunications
Standards Institute - ETSI. These Recommendations and
Standards are copyright to these organizations. ITU-T Rec-
ommendations or ETSI Standards may not be copied and/
or made available to third parties in whole or in part without
the written agreement of ITU-T and/or ETSI.
© Copyright 2008 JDSU Deutschland GmbH. All rights
reserverd.
JDSU and JDSU logo are trademarks of JDS Uniphase
Corporation.
Other trademarks are the property of their respective
holders.
JDSU Deutschland GmbH
Mühleweg 5, 72800 Eningen u. A.
Note: Changes may be made to specifications,
descriptions and delivery information.
Printed in Germany
Order no.: BN 2298/98.21
Version: 2008.11
Previous version: -.-

CONTENT
JDSU cORL-A1 i
CONTENT
1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . 1
cORL-A1 Optical Return Loss Meter . . . . . . . . . . 1
Operating manual update . . . . . . . . . . . . . . . . . . . 2
Symbols used in this operating manual . . . . . . . . 3
2SAFETY INFORMATION. . . . . . . . . . . . . . . . . . 5
Warning symbols on the unit. . . . . . . . . . . . . . . . . 5
Proper usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Laser safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SNT-121A Adapter . . . . . . . . . . . . . . . . . . . . . . . . 8
3GETTING STARTED . . . . . . . . . . . . . . . . . . . . 9
Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4BASIC OPERATION . . . . . . . . . . . . . . . . . . . 15
Switching the device on/off . . . . . . . . . . . . . . . . . 15
Display elements. . . . . . . . . . . . . . . . . . . . . . . . . 15
Navigating in the menus . . . . . . . . . . . . . . . . . . . 16
Configuring the device . . . . . . . . . . . . . . . . . . . . 16
5OPERATION . . . . . . . . . . . . . . . . . . . . . . . . 26
Laser Source mode. . . . . . . . . . . . . . . . . . . . . . . 27
Power Meter mode . . . . . . . . . . . . . . . . . . . . . . . 31
Selecting a wavelength . . . . . . . . . . . . . . . . . . . . 33
Selecting the power level display mode (absolute/
relative) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Return Loss Test mode . . . . . . . . . . . . . . . . . . . . 35
6MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . 38
Cleaning the test port . . . . . . . . . . . . . . . . . . . . . 38
Cleaning the instrument . . . . . . . . . . . . . . . . . . . 39

CONTENT
ii cORL-A1 JDSU
7REMOTE CONTROL . . . . . . . . . . . . . . . . . . . 40
Communication interface. . . . . . . . . . . . . . . . . . . 40
Key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 52
General specifications . . . . . . . . . . . . . . . . . . . . . 52
ORL Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
FPL Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
OPM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
SNT-121A Adapter . . . . . . . . . . . . . . . . . . . . . . . 54
9ORDERING INFORMATION . . . . . . . . . . . . . . 55
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

JDSU cORL-A1 1
1INTRODUCTION
cORL-A1 Optical Return Loss
Meter
The cORL-A1 Test set is specially designed for high
performance testing of all optical signals and systems,
i.e. broadband, PONs, and Gigabit Ethernet.
AC line operation via a separate AC adapter and the
USB interface for remote control ensure ease of use in
the laboratory. The Compact Photonic Tools are
stackable, so you can assemble individual test sets.
Common features
The cORL-A1 is available in two or three laser versions
with the option to select from four key wavelengths:
1310, 1490, 1550, and 1625 nm. The single optical
output found in the cORL-A1 greatly simplifies the optical
connections and calibrations. The 75 dB dynamic range
in return loss enables the measurement of high
performance angled physical contact (APC) connectors.
Through the use of the mode key, the unit will operate as
a simple fiber-coupled optical power meter (OPM) or as
a simple Fabry-Perot Light Source. Full standard
commands for programmable instruments (SCPI) for
these modes are supported.
Innovative features
TWIN or TRIPLE Test
Enabling TWIN or TRIPLE test features on the cOPM-A1
dramatically lowers test durations by allowing
simultaneous measurement for two or three
wavelengths. Accessing this features requires pairing
the cORL-A1 with the a cOPM-A1. When this feature is
enabled on both units, the cOPM-A1 will automatically
detect the present wavelengths and display the

2 cORL-A1 JDSU
1 INTRODUCTION
simultaneous measured output power (or loss) for each
wavelength. Additionally, with these two units paired
together, simultaneous insertion loss and return loss
may be measured. Pairing the cORL-A1 with the cOPM
created the functionality of the historic JDSU RM Series
or singlechannel RX Series.
Differences between the devices
All versions with FC/APC connectors.
Operating manual update
Continuing enhancement and further development of the
Compact Photonic family may mean that this operating
manual does not cover all the latest functions of your
device.
If the operating instructions about features provided by
your device are missing, please visit the JDSU web site
to check if additional information is available.
To download the latest operating instructions:
1. Visit the JDSU web site at www.jdsu.com/test.
2. Select your model from the product line.
3. Open the download area and download the operating
instructions if available.
Type BN ... Description Wavelengths
2298/21 Dual Wavelength
Optical Return Loss
Meter
1310,1550 nm
2298/22 Triple Wavelength
Optical Return Loss
Meter
1310, 1490,
1550 nm
2298/23 Triple Wavelength
Optical Return Loss
Meter
1310, 1550,
1625 nm

JDSU cORL-A1 3
1 INTRODUCTION
Symbols used in this operating
manual
The following symbols, warnings and character formats
are used in this operating manual:
CAUTION
Follow the instructions carefully to
avoid damage to the device.
WARNING
Follow the instructions carefully to
avoid damage to the device or injury to
the person.
DANGER
Follow the instructions carefully to
avoid damage to the device or severe
injury to the person.
High Voltage
Follow the instructions carefully to
avoid damage to the device or severe
injury to the person.
This safety instruction is given if the
danger is due to high voltage.
Laser
Follow the instructions carefully to
avoid damage to the device or severe
injury to the person.
This safety instruction is given if the
danger is due to laser radiation.
Information specifying the laser class is
also given.
!Very important instruction
Follow this instruction carefully; e.g.
!Make sure you protect yourself and
others from exposure to laser light.

4 cORL-A1 JDSU
1 INTRODUCTION
✓Requirement
This requirement must be met first; e.g.
✓The system is switched on
⇒
1.
2.
Instruction
Follow the instructions given (the
numbers indicate the order in which the
instructions should be followed); e.g.
⇒Select mode.
Italics Result
Indicates the result of following an
instruction; e.g.
The page opens.
Bold type
face
Pages, controls, and display
elements
Screen pages, controls, and display
elements are indicated in bold type.
Tex t i n b l u e Cross references
Cross references are indicated in blue
type. When using the PDF version, just
click on the blue text to skip to the cross
reference.
[Store] Instrument keys
Instrument keys are indicated within
square brackets.

JDSU cORL-A1 5
2SAFETY
INFORMATION
Warning symbols on the unit
Proper usage
This instrument is intended for measurements on optical
fiber devices and systems.
⇒Please make sure the device is not operated outside
the permitted ambient conditions.
⇒Observe the specified measurement range.
⇒Always make sure that the device is in proper working
order before switching it on.
Warning symbols indicating a
potential hazard
!In all cases where the unit is labeled with
a warning symbol, the operating manual
must be consulted to learn more about
the nature of the potential hazard and
any action that must be taken.

6 cORL-A1 JDSU
2 SAFETY INFORMATION
Laser safety
WARNING
Dangerous laser radiation
Laser radiation can cause irreparable
damage to the eye and skin.
This device is a Class 1 Laser product according to
DIN EN 60825-1:2001.
Observe the following instructions when working with this
device and laser systems in general:
!Connect all optical fibers before switching on the
radiation source.
!Switch off the radiation source before disconnecting
the optical fibers.
!Never look directly into the output of a laser source or
into an optical fiber connected to it.
!Always cover unused ports.
!Observe the normal precautions for working with laser
radiation and follow any local regulations.

JDSU cORL-A1 7
2 SAFETY INFORMATION
Ventilation
CAUTION
Insufficient ventilation
Insufficient ventilation can damage the
device or adversely affect its function
and safety.
!Ensure adequate ventilation when operating the
device.

8 cORL-A1 JDSU
2 SAFETY INFORMATION
SNT-121A Adapter
Safety class
The SNT-121A AC Adapter/Charger Unit is protectively
isolated to conform with IEC 60950.
Environmental conditions
CAUTION
Ambient temperature too high/low
Temperatures outside the operating
range of 0 to +40 °C can damage the
SNT-121A Adapter or adversely affect
its function and safety.
!Only operate the SNT-121A Adapter indoors.
! The SNT-121A Adapter must only be operated at
ambient temperatures between 0 and +40 °C.
CAUTION
Insufficient ventilation
Insufficient ventilation can damage the
SNT-121A Adapter or adversely affect
its function and safety.
!Ensure adequate ventilation when operating the
SNT-121A Adapter.
CAUTION
Condensation
Operation in the presence of condensa-
tion can damage the SNT-121A Adapter
or adversely affect its function and
safety.
!Do not operate the SNT-121A Adapter if condensation
has formed.
!If condensation cannot be avoided, such as when the
SNT-121A Adapter is cold and is moved to a warm
room, wait until the SNT-121A Adapter Unit is dry
before plugging it into the AC power line.

JDSU cORL-A1 9
3GETTING STARTED
Unpacking the device
Packing material
We suggest that you keep the original packing material.
It is designed for reuse (unless it is damaged during
shipping). Using the original packing material ensures
that the device is properly protected during shipping.
Checking the package contents
Your device is shipped with the following accessories:
• Operating manual
• SNT-121A Adapter
Checking for shipping damage
After you unpack the device, check to see if it has been
damaged during shipping. This is particularly likely if the
packaging is visibly damaged. If there is damage, do not
attempt to operate the device. Doing so can cause
further damage. In case of damage, please contact your
local JDSU Sales Company. Addresses can be found at
www.jdsu.com.
Recovery following storage/shipping
Condensation can occur if a device that is stored or
shipped at a low temperature is brought into a warm
room. To prevent damage, wait until no more
condensation is visible on the surface of the device
before powering it up. Do not operate the device until it
has reached its specified temperature range and wait
until it has cooled down if the device was stored at a high
temperature (see „Ambient temperature” on page 52).

10 cORL-A1 JDSU
3 GETTING STARTED
Device overview
Fig. 1 Frontal view
1
2
5
4
4
3
6
6

JDSU cORL-A1 11
3 GETTING STARTED
1Connector panel (see on page 12 for details)
2Device label
3Display
4Stand
5Power supply connector, USB control interface,
reset button (on rear of the device)
6Keys
λPress to select a wavelength.
PREV Press to go back one menu level
(without making any changes).
MENU
ENTER
Press to:
• open menu and select menu item
• store settings
RL0Triggers the normalizing procedure
Laser ON/OFF Press to switch laser on and off.
Device Mode Toggle between modes:
Power Meter →Laser Source →
Return Loss Test →...
Press to switch the device on and off.
Press to:
• scroll up/down in the menus
• change values in the menus

12 cORL-A1 JDSU
3 GETTING STARTED
Connector panel
Fig. 2 cORL-A1 connector panel
Power supply
The following power sources can be used to operate the
cORL-A1:
• the SNT-121A Adapter
• via the USB control interface
Operation from AC power
NOTICE: Only the SNT-121A Adapter must be used to
operate the cORL-A1 from AC power.
To fit the AC line plug adapter:
1. Select the appropriate AC line plug adapter.
2. Slide the AC line plug adapter into the slot.
The SNT-121A Adapter is ready for use.
1Optical connector
1

JDSU cORL-A1 13
3 GETTING STARTED
Fig. 3 SNT-121A Adapter.
To change the AC line plug adapter:
1. Place the SNT-121A against the edge of a table or
bench as shown (see Fig. 4).
2. Push the SNT-121A downwards.
3. Slide a different AC line plug adapter into the slot
(see Fig. 3).
Fig. 4 SNT-121A: Changing the AC line plug adapter.
To operate the cORL-A1 from AC power:
1. Connect the SNT-121A DC power cord to the
cORL-A1 DC power socket.
(The socket is located on the back panel.)
2. Plug the SNT-121A into the AC line socket.
The cORL-A1 switches on automatically when
powered from the SNT-121A.

14 cORL-A1 JDSU
3 GETTING STARTED
Operation from USB interface power
Although the USB interface is primarily intended for
remote control, it can also be used to power the
cORL-A1.
To power the cORL-A1 via the USB interface:
⇒Just connect a standard USB cable to any USB socket
of a PC or USB hub.
Notes:
• The device can be operated manually even if it is
powered via the USB interface.
• The device will be powered by the SNT-121A Adapter
if the SNT-121A Adapter and the USB interface are
both connected.

JDSU cORL-A1 15
4BASIC OPERATION
Switching the device on/off
To switch the device on:
⇒Press [*]to switch on the device.
To switch the device off:
⇒Press and hold down [*]for more than 2 sec. to
switch off the device.
Display elements
Fig. 5 Measurement display in laser source mode.
Laser OFF
1 wavelength
Continuous
wave
Laser ON
2 wavelengths
Auto-λ

16 cORL-A1 JDSU
4 BASIC OPERATION
Navigating in the menus
✓The measurement display is shown.
⇒Press [MENU ENTER] to open the MAIN menu.
The MAIN menu opens.
To select a menu item:
1. Press [▲▼]to highlight an item.
2. Press [MENU ENTER] to select the item.
To leave a menu without making any changes:
⇒Press [PREV].
Configuring the device
This chapter describes the basic settings in the
Configuration menu.
✓The measurement display is open.
⇒Press [MENU ENTER] to open the MAIN menu and
select Configuration.
The CONFIGURATION menu opens:
External power supply
The cORL-A1 is powered by the external
AC adapter when this symbol is shown.
USB Power supply via USB
The device is powered via the USB
interface for remote operation.
CW
Auto-λ
Signal modulation
•CW: Continuous wave
•Auto-λ:Auto wavelength detection
•270 Hz, 1 kHz, 2 kHz: modulation
frequency
Center of
display
Shows the measurement results or
setup values.