METRObility Optical Systems Radiance CWDM System User Manual
Installation & User Guide
RADIANCE
CWDM SYSTEM
© 2003-2004 Metrobility Optical Systems, Inc. All rights reserved. Printed in USA.
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Radiance Coarse Wavelength Division Multiplexing
(CWDM) System
Chassis:
R4000-02 _____ 2-slot 1U rack-mount chassis for CWDM/OADM modules
CWDM Multiplexer/Demultiplexer Modules:
R416-A4-A ____ 4-channel CWDM mux/demux module w/expansion,
1550, 1570, 1590, 1610 nm
R416-A4-B ____ 4-channel CWDM mux/demux module w/expansion,
1470, 1490, 1510, 1530 nm
R416-A4-C ____4-channel CWDM mux/demux module w/expansion,
1390, 1410, 1430, 1450 nm
R416-A4-D ____4-channel CWDM mux/demux module w/expansion,
1310, 1330, 1350, 1370 nm
R416-B4 ______8-channel CWDM mux/demux module,
1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610 nm
R416-A4-AE ___ 4-channel CWDM mux/demux module w/expansion;
1550, 1570, 1590, 1610 nm; extended temperature range
R416-A4-BE ___ 4-channel CWDM mux/demux module w/expansion;
1470, 1490, 1510, 1530 nm; extended temperature range
R416-A4-CE ___4-channel CWDM mux/demux module w/expansion;
1390, 1410, 1430, 1450 nm; extended temperature range
R416-A4-DE ___4-channel CWDM mux/demux module w/expansion;
1310, 1330, 1350, 1370 nm; extended temperature range
Optical Add/Drop Multiplexing (OADM) Drop/Pass Modules:
R426-D4-31____ 1-channel OADM drop/pass module, 1310 nm
R426-D4-33____ 1-channel OADM drop/pass module, 1330 nm
R426-D4-35____ 1-channel OADM drop/pass module, 1350 nm
R426-D4-37____ 1-channel OADM drop/pass module, 1370 nm
R426-D4-39____ 1-channel OADM drop/pass module, 1390 nm
R426-D4-41____ 1-channel OADM drop/pass module, 1410 nm
R426-D4-43____ 1-channel OADM drop/pass module, 1430 nm
R426-D4-45____ 1-channel OADM drop/pass module, 1450 nm
R426-D4-47____ 1-channel OADM drop/pass module, 1470 nm
R426-D4-49____ 1-channel OADM drop/pass module, 1490 nm
R426-D4-51____ 1-channel OADM drop/pass module, 1510 nm
R426-D4-53____ 1-channel OADM drop/pass module, 1530 nm
R426-D4-55____ 1-channel OADM drop/pass module, 1550 nm
R426-D4-57____ 1-channel OADM drop/pass module, 1570 nm
R426-D4-59____ 1-channel OADM drop/pass module, 1590 nm
R426-D4-61____ 1-channel OADM drop/pass module, 1610 nm
OADM Drop/Pass Modules (continued):
R426-D4-47E __ 1-channel OADM drop/pass module, 1470 nm, extended temp
R426-D4-49E __ 1-channel OADM drop/pass module, 1490 nm, extended temp
R426-D4-51E __ 1-channel OADM drop/pass module, 1510 nm, extended temp
R426-D4-53E __ 1-channel OADM drop/pass module, 1530 nm, extended temp
R426-D4-55E __ 1-channel OADM drop/pass module, 1550 nm, extended temp
R426-D4-57E __ 1-channel OADM drop/pass module, 1570 nm, extended temp
R426-D4-59E __ 1-channel OADM drop/pass module, 1590 nm, extended temp
R426-D4-61E __ 1-channel OADM drop/pass module, 1610 nm, extended temp
OADM Drop/Insert Modules:
R436-J4-31 ____ 1-channel OADM drop/insert module, 1310 nm
R436-J4-33 ____ 1-channel OADM drop/insert module, 1330 nm
R436-J4-35 ____ 1-channel OADM drop/insert module, 1350 nm
R436-J4-37 ____ 1-channel OADM drop/insert module, 1370 nm
R436-J4-39 ____ 1-channel OADM drop/insert module, 1390 nm
R436-J4-41 ____ 1-channel OADM drop/insert module, 1410 nm
R436-J4-43 ____ 1-channel OADM drop/insert module, 1430 nm
R436-J4-45 ____ 1-channel OADM drop/insert module, 1450 nm
R436-J4-47 ____ 1-channel OADM drop/insert module, 1470 nm
R436-J4-49 ____ 1-channel OADM drop/insert module, 1490 nm
R436-J4-51 ____ 1-channel OADM drop/insert module, 1510 nm
R436-J4-53 ____ 1-channel OADM drop/insert module, 1530 nm
R436-J4-55 ____ 1-channel OADM drop/insert module, 1550 nm
R436-J4-57 ____ 1-channel OADM drop/insert module, 1570 nm
R436-J4-59 ____ 1-channel OADM drop/insert module, 1590 nm
R436-J4-61 ____ 1-channel OADM drop/insert module, 1610 nm
R436-J4-47E ___ 1-channel OADM drop/insert module, 1470 nm, extended temp
R436-J4-49E ___ 1-channel OADM drop/insert module, 1490 nm, extended temp
R436-J4-51E ___ 1-channel OADM drop/insert module, 1510 nm, extended temp
R436-J4-53E ___ 1-channel OADM drop/insert module, 1530 nm, extended temp
R436-J4-55E ___ 1-channel OADM drop/insert module, 1550 nm, extended temp
R436-J4-57E ___ 1-channel OADM drop/insert module, 1570 nm, extended temp
R436-J4-59E ___ 1-channel OADM drop/insert module, 1590 nm, extended temp
R436-J4-61E ___ 1-channel OADM drop/insert module, 1610 nm, extended temp
Accessories:
R1000-RM_____21-inch rackmounting hardware
4000-CA ______four 1-meter LC-to-SC singlemode fiber cables
Metrobility, Metrobility Optical Systems, and NetBeacon are registered trademarks of Metrobility Optical Systems, Inc. The
Metrobility Optical Systems logo is a trademark of Metrobility Optical Systems, Inc. All other trademarks are the property
of their respective owners.
The information contained in this document is assumed to be correct and current. The manufacturer is not responsible for
errors or omissions and reserves the right to change specifications at any time without notice.
4 Table of Contents
Table of Contents
Radiance CWDM System Installation & User Guide
Table of Contents .................................................................................................4
Overview...............................................................................................................5
Product Features ............................................................................................6
System Description ..............................................................................................7
CWDM Components.....................................................................................7
Mux/Demux ...........................................................................................8
Expansion Port ................................................................................8
Drop/Pass Module................................................................................10
Drop/Insert Module..............................................................................11
Installation Guide ..............................................................................................12
Unpack the System......................................................................................12
Mount the Chassis .......................................................................................13
Attach the Grounding Lug...........................................................................14
Connect to the Network...............................................................................14
User Guide .........................................................................................................17
Calculating the Transmission Power Budget .............................................. 17
Calculating the Maximum Link Distance ............................................19
Software Support.........................................................................................20
Topology Solutions ..................................................................................... 21
Replacing a Module .................................................................................... 24
Technical Specifications.............................................................................. 25
Abbreviations ..............................................................................................27
Product Safety and Compliance Statements................................................27
Warranty and Servicing ...............................................................................28
Radiance CWDM System 5
Overview
The Radiance Coarse Wavelength Division Multiplexing (CWDM) System is a
passive, optical solution for increasing the flexibility and capacity of existing
fiber lines in high-speed networks. By adding more channels onto available
fibers, the Radiance CWDM System enables greater versatility for data communications in ring, point-to-point, and multipoint topologies for both enterprise
and metro applications.
Metrobility’s CWDM System increases fiber capacity by placing widely spaced,
separate wavelengths—between 1310 and 1610 nm—from multiple ports onto a
singlemode fiber pair on the network. Using the expansion port included on
some modules, the CWDM System can be configured to deliver up to 16
different channels, each carrying 1 Gbps of bandwidth.
All CWDM System components are passive and require no power supplies.
They include the two-slot R4000 chassis and a set of mux/demux, drop/pass, and
drop/insert modules with color-coded port connectors. Any two modules may be
installed in the R4000 chassis. The 1U high R4000 can be installed anywhere
from the central office to the customer premise.
The CWDM mux/demux takes 4 or 8 different wavelength channels and
combines (multiplexes) them onto one common fiber cable for transmission to
the network. It also separates (demultiplexes) the channels it receives from the
network and sends each channel to a different device. Multiple modules may be
chained through the expansion port on the four-channel modules. This increases
flexibility and enables growth for evolving networks.
Optical Add/Drop Multiplexing (OADM) drop/pass and drop/insert modules
provide the ability to terminate (drop) one CWDM channel from the network
fiber, while allowing all other channels to continue (pass) to other nodes.
Similarly, the drop/insert module removes an individual channel from the
network fiber, however, it also provides the ability to add (insert) that same
channel back onto the network fiber. The drop/insert module supports two paths
(east and west) for dropping and adding, so that network viability is maintained
in a ring topology, even if a break occurs in the ring.
All CWDM/OADM modules interface with Metrobility products that support
CWDM transceivers.
Through Metrobility’s NetBeacon® management software, you can enter
hardware and configuration information about the R4000 chassis and its
modules. This information is stored in a database which can be viewed and
6 Introduction
modified in a user-friendly format. The chassis and modules appear as an
inventory device with matching colored ports.
Product Features
The Radiance CWDM System provides the following key features:
• ITU G.694.2 CWDM wavelength grid with 20 nm spacing.
• Support for up to 16 different channels, each carrying 1 Gbps of bandwidth.
• Expansion port on all 4-channel mux/demux modules.
• Color-coded port labels for easy identification.
• SC connectors.
• Transparency to data frame sizes, accommodating multiple protocols.
• Bidirectional capability on all channels using dual fiber.
• Optional 21-inch rackmounting hardware available.
• Support from Metrobility’s NetBeacon management element software as an
inventory device.
• Extended operating temperature range (-40° to 80°C) available on some
modules.
Radiance CWDM System 7
System Description
This section describes the components of the Radiance CWDM System.
CWDM Components
The Radiance CWDM System is comprised of three basic components.
• The multiplexer/demultiplexer (mux/demux) combines four or eight different
channels onto a common network fiber. Data received from the network fiber
is separated back into the individual channels and returned to the local ports.
NETWORK
1410
1430
1390
EXPANSION
1450
TX
RX
TX
RX
CWDM MUX/DEMUX
Network Port
Interface Ports
Expansion Port
TX
RX
NETWORK
1470
1490
1510
1550
1570
1590
1610
1530
Network Port
Interface Ports
CWDM MUX/DEMUX
• The drop/pass module removes one channel from the eastbound network
fiber and delivers it to a local port. The remaining channels are passed
straight through to other nodes on the network.
RX
NETWORK
NETWORK
WEST
RX
EAST
1550
TX
TX
OADM DROP/PASS
DROP
Network West Port
Drop Port Network East Port
Wavelength of Drop Port
• The drop/insert module terminates one channel from the network fiber in one
direction and delivers it to a local port. It also allows a second local port to
add the same channel back onto the network fiber in the opposite direction.
TX
RX
NETWORK
NETWORK
WEST
TX
RX
EAST
1550
OADM DROP/INSERT
Wavelength of Drop & Insert Ports
DROP
INSERT
Network West Port
Drop Port Network East Port
Insert Port
The following examples use four channels, however, the principles are applicable to all. The only exception is the expansion feature, which only applies to
the four-channel mux/demux. A dual fiber configuration is assumed.
CWDM applications are described in terms of an east-west connection. Different
colors represent individual channels. Westbound traffic is represented by dashed
lines; eastbound traffic is shown with solid lines.
WEST EAST
8 System Description
Mux/Demux
The mux/demux provides four interface ports, each mapped to a different
wavelength. The mux/demux combines the channels and transmits them on a
single outbound (TX) fiber. Simultaneously, the mux/demux receives the same
four channels from a single inbound (RX) fiber, separates them into individual
wavelengths, and delivers each to the appropriate local interface. This process
quadruples the capacity of the existing network fiber cable.
Mux/Demux
T
X
R
X
WEST EAST
Local Interfaces
Mux/Demux
Local Interfaces
R
X
T
X
Single Fiber Pair
Expansion Port
The four-channel mux/demux can be configured to support additional channels
through the expansion port. By cascading the modules in series, you can
increase the total number of available network channels, up to 16. The channels
connecting to the expansion port must differ from those on the mux/demux to
which they are being cascaded.
In the following illustration, a four-channel module is connected to an eightchannel module to transport 12 separate channels, each with a different wavelength.
NETWORK
1370
1430
1350
EXPANSION PORT
1450
CWDM MUX/DEMUX
TX
TX
TX
RX
Channels 1-8
Channels 1-12
RX
TX
NETWORK
1470
1490
1510
1550
1570
1590
1610
1530
1 2 3 4 5 6 7 8
CWDM MUX/DEMUX
9 10 11 12
Radiance CWDM System 9
The next diagram illustrates how the channels for the example above are
cascaded through the expansion port. Mux/Demux #1 is transporting 8 different
channels, and Mux/Demux #2 is transporting 12 channels on its network fiber.
WEST EAST
Mux/Demux #2
T
X
R
X
=
Exp
Mux/Demux #1
T
X
R
X
=
=
Channels 1-8
Channels 1-12
Local Interfaces
Local Interfaces
The Radiance CWDM System supports four 4-channel mux/demux modules and
one 8-channel mux/demux. The interface ports on the mux/demux connect to
any Metrobility product that supports CWDM transceivers. The network port on
the mux/demux connects to another mux/demux for a point-point application, or
to a drop/insert or drop/pass module for other applications.
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