EXFO RTU-2 User manual

User Guide
RTU-2
www.EXFO.com

ii RTU-2
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Units of Measurement
Units of measurement in this publication conform to SI standards and
practices.
Patents
The exhaustive list of patents is available at EXFO.com/patent.
Version number: 3.0.0.2

Contents
RTU-2 iii
Contents
Regulatory Information ..........................................................................................................v
1 Introducing the RTU-2 .................................................................................. 1
Main Features .........................................................................................................................1
LED Indicators Description ......................................................................................................4
Product Registration ...............................................................................................................6
Technical Specifications ..........................................................................................................6
Conventions ............................................................................................................................7
2 Safety Information ....................................................................................... 9
Other Safety Symbols on Your Unit ......................................................................................11
Laser Safety Information .......................................................................................................12
Electrical Safety Information .................................................................................................13
Automatic Fan Speed Management ......................................................................................16
3 Getting Started with Your Unit ................................................................. 17
Preparing for Installation ......................................................................................................17
Installing the Optional Access (Junction) Panel .....................................................................18
Installing Your Unit and the Optional Front Access Panel in a Rack ......................................27
Grounding Your Unit ............................................................................................................31
Connecting a Monitoring Device to the Dry Contact Relays ..................................................33
Inserting and Removing Test Modules ..................................................................................37
Connecting RTUe-9110/RTUe-9120 External Switches to Your Unit ......................................41
Connecting Your Unit to a Power Source ..............................................................................43
Turning on Your Unit ............................................................................................................51
Turning off Your Unit ...........................................................................................................52
Working With Your Unit for the First Time ............................................................................53
4 Maintenance ............................................................................................... 63
Replacing Fuses ....................................................................................................................64
Recalibrating Your Modules ..................................................................................................66
Recycling and Disposal .........................................................................................................66
5 Troubleshooting ......................................................................................... 67
Solving Common Problems ...................................................................................................67
Retrieving Logs .....................................................................................................................69
Contacting the Technical Support Group ..............................................................................71
Transportation ......................................................................................................................72

Contents
iv RTU-2
6 Warranty ......................................................................................................73
General Information .............................................................................................................73
Gray Market and Gray Market Products ................................................................................74
Liability .................................................................................................................................75
Exclusions .............................................................................................................................75
Certification ..........................................................................................................................75
Service and Repairs ...............................................................................................................76
EXFO Service Centers Worldwide ..........................................................................................77
Index .................................................................................................................79

Regulatory Information
RTU-2 v
Regulatory Information
Canada and USA Electromagnetic Interference
Regulatory Statement
Electronic test and measurement equipment is exempt from FCC part 15,
subpart B compliance in the United States of America and from ICES-003
compliance in Canada. However, EXFO Inc. makes reasonable efforts to
ensure compliance to the applicable standards.
The limits set by these standards are designed to provide reasonable
protection against harmful interference when the equipment is operated in
a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance
with the user documentation, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely
to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
Modifications not expressly approved by the manufacturer could void the
user’s authority to operate the equipment.
European Electromagnetic Compatibility
Regulatory Statement
Warning: This is a class A product. In a domestic environment, this product
may cause radio interference in which case the user may be required to
take adequate measures. Your product is suitable for use in industrial
electromagnetic environments.
European Declaration of Conformity
The full text of the EU declaration of conformity is available at the following
Internet address: www.exfo.com/en/resources/legal-documentation.

RTU-2 1
1 Introducing the RTU-2
The RTU-2 is a modular remote test unit that can be seamlessly integrated
with Nova Fiber Monitoring System (FMS). FMS is the central management
software for all EXFO's fiber monitoring probes such as the RTU-2, FG-750,
and RTU-2 for point-to-point (P2P) and point-to-multipoint (P2MP)
networks.
Main Features
Your unit, which could be part of various EXFO solutions, offers the
following:
Two module slots
Six USB 3.0 host ports
LAN/WAN Ethernet port (10/100/1000 Base-T)
Front and rear management Ethernet ports (10/100/1000 Base-T) for
local access
Installation in 19-inch racks or cabinets (with the provided brackets)
Possibility to install an optional panel allowing to access the ports and
connectors located on the back panel of the unit from the front of the
rack instead
Possibility to use with the RTUe-9110 and RTUe-9120 external switches
Easy software updates

Introducing the RTU-2
2RTU-2
Main Features
USB 3.0 host port
On/Off button (see Turning on Your Unit on page 51
and Turning off Your Unit on page 52)
LEDs
Front panel – RTU-2
Ethernet (RJ-45) management port for local access
(to connect a portable computer to the unit)
Built-in display
Module slots

Introducing the RTU-2
RTU-2 3
Main Features
Note: You can also connect the unit to AC power with the AC/DC power adapter
sold by EXFO.
Note: Depending on your particular setup needs, you can install an optional
panel allowing you to access the ports and connectors of the back panel of
the unit from the front of the rack instead. For more information,
see Installing the Optional Access (Junction) Panel on page 18.
DC power inlet (dual feed)
Ethernet (RJ-45) port
(for LAN/WAN connection)
Dry contact relays
(reserved for future use)
Grounding lug
Back panel – RTU-2
Main power switch USB 3.0 host ports
Ethernet (RJ-45) management port
(for local access)

Introducing the RTU-2
4RTU-2
LED Indicators Description
Note: You can also connect the unit to AC power with the AC/DC power adapter
sold by EXFO.
LED Indicators Description
There are LED indicators located on the front panel of your unit, providing
you with information about the power and system statuses.
The table below presents the possible statuses once the initial startup
sequence is complete.
LED Status Meaning
Power
Green Unit is on.
Yellow One of the unit’s fuses is blown
(see Replacing Fuses on page 64).
Off Unit is off.
DC power inlet (dual feed)
Ethernet (RJ-45) port
(for LAN/WAN connection)
Grounding lug
Front view – Optional access panel
USB 3.0 host ports

Introducing the RTU-2
RTU-2 5
LED Indicators Description
Systema
Green The unit is working properly and is ready.
Green, blinking The initialization of the unit or its shutdown is
underway.
Yellow Non-critical hardware error detected.
The temperature of the room where the unit
is located could be slightly too low or too
high, or there could be a hardware
malfunction.
Ensure that the temperature falls within the
specified operating temperature range (see
Electrical Safety Information on page 13).
If the problem persists, contact EXFO.
Red Critical hardware error detected.
The temperature of the room where the unit
is located is critically too low or too high, or
there could be a hardware malfunction.
Ensure that the temperature falls within the
specified operating temperature range (see
Electrical Safety Information on page 13).
If the problem persists, contact EXFO.
Off Unit is off.
a. If more than one error is detected at the same time, the color of the LED will be set according to the most
severe error (red as the most severe, followed by yellow).
LED Status Meaning

Introducing the RTU-2
6RTU-2
Product Registration
Product Registration
You can now register your new EXFO products online and benefit from
every possible opportunity to optimize their performance. By doing so, you
will always be notified of the latest software updates, key product
enhancements and up-to-date support information related to your
products.
To register your product online:
1. Open a Web browser and go to www.exfo.com.
2. Log in to your EXFO account.
3. Click Support > Product registration.
4. Under My Products, click Register.
5. Follow the on-screen instructions.
Technical Specifications
To obtain this product’s technical specifications, visit the EXFO Web site at
www.exfo.com.

Introducing the RTU-2
RTU-2 7
Conventions
Conventions
Before using the product described in this guide, 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.

RTU-2 9
2 Safety Information
WARNING
Do not install or terminate fibers while a light source is active.
Never look directly into a live fiber and ensure that your eyes are
protected at all times.
WARNING
The use of controls, adjustments and procedures, namely for
operation and maintenance, other than those specified herein may
result in hazardous radiation exposure or impair the protection
provided by this unit.
WARNING
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired.
WARNING
Use only accessories designed for your unit and approved by EXFO.
For a complete list of accessories available for your unit, refer to its
technical specifications or contact EXFO.

Safety Information
10 RTU-2
IMPORTANT
Refer to the documentation provided by the manufacturers of any
accessories used with your EXFO product. It may contain
environmental and/or operating conditions limiting their use.
IMPORTANT
When you see the following symbol on your unit , make sure
that you refer to the instructions provided in your user
documentation. Ensure that you understand and meet the required
conditions before using your product.
IMPORTANT
When you see the following symbol on your unit , it indicates
that the unit is equipped with a laser source, or that it can be used
with instruments equipped with a laser source. These instruments
include, but are not limited to, modules and external optical units.
IMPORTANT
Other safety instructions relevant for your product are located
throughout this documentation, depending on the action to
perform. Make sure to read them carefully when they apply to your
situation.

Safety Information
RTU-2 11
Other Safety Symbols on Your Unit
Other Safety Symbols on Your Unit
One or more of the following symbols may also appear on your unit.
Symbol Meaning
Direct current
Alternating current
The unit is equipped with an earth (ground) terminal.
The unit is equipped with a protective conductor terminal.
The unit is equipped with a frame or chassis terminal.
On (Power)
Off (Power)
OR On/off (Power)
Fuse

Safety Information
12 RTU-2
Laser Safety Information
Laser Safety Information
Your instrument is in compliance with standard IEC 60825-1: 2014.
The following label indicates that a product contains a Class 1M source:
Laser radiation may be encountered at the optical output port of the
modules or instruments that you use with your unit.
Refer to the user documentation of the different modules for the relevant
laser safety information.
The modules and instruments that you use with your unit may have
different laser classes. Refer to their user documentation for the exact
information.
WARNING
Viewing the laser output with telescopic optical instruments (for
example, telescopes and binoculars) may pose an eye hazard and
thus the user should not direct the beam into an area where such
instruments are likely to be used.

Safety Information
RTU-2 13
Electrical Safety Information
Electrical Safety Information
WARNING
A readily accessible disconnect device must be installed on the
mains (AC or DC circuits). The power cord of the AC/DC power
adapter can be considered the disconnect device to the main
power.
If you intend to connect your RTU-2 to AC power, use only the
listed and certified AC/DC power adapter provided by EXFO with
your unit. It provides reinforced insulation between primary
and secondary, and is suitably rated for the country where the
unit is sold.
DO NOT connect the unit interfaces metallically to OSP (Outside
Plant) wiring. The unit interfaces are designed for use as
intra-building surfaces only (Type 2 or Type 4 ports as described
in GR-1089-CORE) and require isolation from the exposed OSP
cabling. The addition of Primary Protectors is not sufficient
protection in order to connect these interfaces metallically to
OSP wiring.
Use only the certified power cord that is suitably rated for the
country where the unit is used.
Replacing detachable MAINS supply cords by inadequately
RATED cords may result in overheating of the cord and create a
risk of fire.

Safety Information
14 RTU-2
Electrical Safety Information
WARNING
Use this unit indoors only.
Do not remove unit covers during operation.
Operation of any electrical instrument around flammable gases
or fumes constitutes a major safety hazard.
To avoid electrical shock, do not operate the unit if any part of
the outer surface (covers, panels, etc.) is damaged.
Make sure both disconnect devices are turned off before
servicing the unit.
Only authorized personnel should carry out adjustments,
maintenance or repair of opened units under voltage. A person
qualified in first aid must also be present. Do not replace any
components while the disconnect devices are turned on.
Use only fuses with the required rated current and specified
type (For fuses 1 and 2, located at the back of the unit: F10A L,
5 mm x 20 mm (0.197 in x 0.787 in), fast-acting, 250 V; For
fuses 3 and 4, located on the front of the access panel: F6.3A L,
5 mm x 20 mm (0.197 in x 0.787 in), fast-acting, 250 V). Do not
use repaired fuses or short-circuited fuse holders. For more
information, see the section about replacing the fuses in this
user documentation.
Unless otherwise specified, all interfaces are intended for
connection to ES1 circuits only.
Capacitors inside the unit may be charged even if the unit has
been disconnected from its electrical supply.
CAUTION
Position the unit so that the air can circulate freely around it.