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CWDM-xxxxxCR-B
Mux/Demux and Optical Add/Drop Multiplexer Modules
User Guide
Increase bandwidth on existing fiber infrastructure
Alleviate fiber exhaustion
Transmit multiple protocols over existing duplex fiber link by combining fiber outputs of multiple media converters
Provide scalable bandwidth of up to 10 Gbps per channel over existing fiber links
Plug-and-Play, no configuration of CWDM components
Use existing standard optical ports on switches and routers (utilize Optical Line Converter as transponder)
Contents
Introduction ............................................................................................................................................................................ 1
Ordering Information . ............................................................................................................................................................. 2
Optional Accessories (Sold Separately) . .................................................................................................................................. 3
Family Portrait . ........................................................................................................................................................................ 3
Connections ............................................................................................................................................................................ 4
Application Examples . ............................................................................................................................................................. 4
CWDM-Add-Drop Mux Example . ........................................................................................................................................ 5
CWDM-Mux-Demux Example . ............................................................................................................................................ 5
CWDM Add/Drop Mux Connections . ...................................................................................................................................... 6
Unpacking ............................................................................................................................................................................... 6
Installation .............................................................................................................................................................................. 6
Safety Instructions for Rack Mount Installations ............................................................................................................... 6
Front Panels ............................................................................................................................................................................ 9
Add/Drop Mux Front Panel ................................................................................................................................................ 9
CWDM Mux Front Panels ................................................................................................................................................... 9
Handling Fiber Cables ....................................................................................................................................................... 10
Installing Fiber Cables ....................................................................................................................................................... 10
Theory of Operation . ............................................................................................................................................................. 11
Coarse Wave Division Multiplexing .................................................................................................................................. 11
Optical Add/Drop Multiplexer (OADM) . ........................................................................................................................... 12
CWDM Wavelength-specific Optical Transceivers ........................................................................................................... 12
Technical Specifications . ................................................................................................................................................... 13
Add/Drop Mux Specifications . .......................................................................................................................................... 13
CWDM Mux Specifications ............................................................................................................................................... 13
Troubleshooting . ................................................................................................................................................................... 15
Product Label and Box Label............................................................................................................................................. 15
Record System and Device Information ........................................................................................................................... 15
Contact Us . ............................................................................................................................................................................ 16
Record of Revisions . .............................................................................................................................................................. 16
Introduction
Transition Networks CWDM products use a passive technology that allows for any protocol to be transported over
the fiber link, as long as it is at a specific wavelength. Transition Networks' CWDM Mux/Demux and Add/Drop Mux
can provide a simple and affordable method to maximize existing fiber capacity with little or no increased cost.
33794 Rev. A
http://www.transition.com/
Page 1 of 16
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Related Manuals for Transition Networks CWDM-MXxxLCR-B Series
Summary of Contents for Transition Networks CWDM-MXxxLCR-B Series
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Page 1: Table Of Contents
CWDM‐xxxxxCR‐B Mux/Demux and Optical Add/Drop Multiplexer Modules User Guide Increase bandwidth on existing fiber infrastructure Alleviate fiber exhaustion Transmit multiple protocols over existing duplex fiber link by combining fiber outputs of multiple media converters Provide scalable bandwidth of up to 10 Gbps per channel over existing fiber links Plug‐and‐Play, no configuration of CWDM components Use existing standard optical ports on switches and routers (utilize Optical Line Converter as transponder) Contents Introduction .................................... 1 Ordering Information ................................ 2 Optional Accessories (Sold Separately) ........................... 3 Family Portrait .................................. 3 Connections .................................... 4 Application Examples ................................ 4 CWDM‐Add‐Drop Mux Example ............................ 5 CWDM‐Mux‐Demux Example ............................. 5 CWDM Add/Drop Mux Connections ............................ 6 Unpacking .................................... 6 Installation .................................... 6 ... -
Page 2: Ordering Information
Transition Networks, Inc. CWDM‐xxxxxCR‐B Mux/Demux User Guide Passive optical CWDM devices utilize thin‐film filter technology. They are available in various wavelength combinations based on the entire wavelength spectrum (1270nm–1610nm in 20nm increments) defined by the ITU‐T G.694.2 CWDM standard. These CWDM devices are available in two main configurations: Multiplexer/Demultiplexer (Mux/Demux) modules and Optical Add/Drop Multiplexer (OADM) modules. Each module is a pluggable device that slides into a one rack unit (1RU) chassis that can hold 2 modules and mount into a 19” equipment rack. Ordering Information # Model Description CWDM‐MXxxLCR‐B Series Coarse Wavelength Division Multiplexing (CWDM) Mux/Demux 1 CWDM‐M551LCR‐B 4 Channels + OSC,1510/1530/1550/1570nm, Duplex LC Mux/Demux 2 CWDM‐M947LCR‐B 8 Channels + OSC,1470‐1610nm, Duplex LC Mux/Demux 3 CWDM‐M1631LCR‐B 16 Channels ,1310‐1610nm, Duplex LC Mux/Demux CWDM‐A2A8xxLCR‐B Series Add/Drop Mux (CWDM); 1 Channel with E/W Lines 4 CWDM‐A2A831LCR‐B 1 Channel 1310nm port with E/W lines (wideband (+/‐ 50nm)) 5 CWDM‐A2A833LCR‐B 1 Channel 1330nm port with E/W lines 6 CWDM‐A2A835LCR‐B 1 Channel 1350nm port with E/W lines 7 CWDM‐A2A837LCR‐B ... -
Page 3: Family Portrait
Transition Networks, Inc. CWDM‐xxxxxCR Mux/Demux User Guide Optional Accessories ( Sold Separately Model Description CWDM‐MB19R2 19” Rack Mount chassis, 1RU High, holds 2 CWDM Modules Transition Networks offers a full line of small form factor pluggable (SFP) modules. SFP Modules See our SFP product webpage for more information. Family Portrait CWDM‐A2A855LCR‐B Add/Drop Mux (CWDM) CWDM‐M1631LCR‐B (16‐Ch. Mux/Demux) CWDM‐M551LCR‐B (4‐Ch. Mux/Demux) CWDM‐M947LCR‐B (8‐Ch. Mux/Demux) 33794 Rev. A https://www.transition.com/ Page 3 of 16 ... -
Page 4: Connections
Transition Networks, Inc. CWDM‐xxxxxCR‐B Mux/Demux User Guide Connections CWDM‐xxxxxCR‐B Mux/Demux Optical Add/Drop Multiplexer Modules Figure 1: CWDM‐xxxxxCR‐B Mux/Demux and Optical Add/Drop Multiplexer Modules Application Examples The figure below shows an existing copper switch at a Central Office or Point‐of‐Presence (POP) converting the electrical signal to the appropriate optical wavelength. The signals are then multiplexed together and sent across the fiber infrastructure. At the remote side the signals are de‐multiplexed and sent to the customer location. Figure 2: CWDM‐xxxxxCR‐B Application Example 33794 Rev. A https://www.transition.com/ Page 4 of 16... -
Page 5: Cwdm-Add-Drop Mux Example
Transition Networks, Inc. CWDM‐xxxxxCR Mux/Demux User Guide CWDM-Add-Drop Mux Example CWDM-Mux-Demux Example 33794 Rev. A https://www.transition.com/ Page 5 of 16 ... -
Page 6: Cwdm Add/Drop Mux Connections
Transition Networks, Inc. CWDM‐xxxxxCR‐B Mux/Demux User Guide CWDM Add/Drop Mux Connections The figure below shows Transition Networks CWDM Mux/Demux & Add/Drop Mux modules. In the figure, λ1 indicates Lambda 1 (for one particular wavelength). Unpacking Carefully unpack the CWDM‐xxxxxCR‐B. Verify that you have received: One CWDM‐xxxxxCR‐B One Documentation Postcard One printed Quick Start Guide, 33793 Please save the packaging for possible future use. Installation Safety Instructions for Rack Mount Installations The instructions below (or similar) are intended for rackmount installation environments: 1. Elevated Operating Ambient Temperature: if installed in a closed or multi‐unit rack assembly, the operating ambient temperature of the rack environment may exceed room ambient. Install the equipment in an environment compatible with the maximum ambient temperature (Tma) specified. 2. Reduced Air Flow: install the equipment in a rack so that the amount of air flow required for safe operation is not compromised. 3. Mechanical Loading: Mount the equipment in the rack so that a hazardous condition does not occur due to uneven mechanical loading (weight distribution/rack balance). 4. Circuit Overloading: give consideration to the connection of the equipment to the supply circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Consider all equipment nameplate ratings when addressing this concern. 5. Reliable Earthing: maintain reliable earthing of rack‐mounted equipment; pay particular attention to supply connections other than direct connections to the branch circuit (e.g., use of power strips). ... - Page 7 Transition Networks, Inc. CWDM‐xxxxxCR Mux/Demux User Guide Rack Mount Install Procedure The CWDM modules install into the optional CWDM‐MB19R2 Rack Mount chassis for installation in a free‐standing rack. To install the bracket and CWDM module into a rack, do the following: 1. Locate the CWDM module and bracket. See Figure 3. Figure 3: Bracket and CWDM Module 2. Mount the Bracket to the equipment rack, using four screws as shown in Figure 4. Figure 4: Bracket Installation 3. Pull the CWDM mounting plungers fully out, as shown in Figure 5. 4. Slide the CWDM module into one of the slots, as shown in Figure 5. 33794 Rev. A https://www.transition.com/ Page 7 of 16 ...
- Page 8 Transition Networks, Inc. CWDM‐xxxxxCR‐B Mux/Demux User Guide Figure 5: Slide CWDM Module into Front of Bracket 5. Secure the CWDM module to the bracket, as shown in Figure 6. Figure 6: CWDM Module Installation into Bracket 33794 Rev. A https://www.transition.com/ Page 8 of 16...
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Page 9: Front Panels
Transition Networks, Inc. CWDM‐xxxxxCR Mux/Demux User Guide Front Panels Add/Drop Mux Front Panel The Add/Drop Mux Front Panel is shown in Figure 7. Figure 7: Add/Drop Mux Front Panel CWDM Mux Front Panels The CWDM modules have no LEDs as it does not require power. The front panels are shown in Figures 8a, 8b, and 8c. Figure 8a: 4‐Channel CWDM Mux Front Panel (CWDM‐M551LCR‐B) Figure 8b: 8‐Channel CWDM Mux Front Panel (CWDM‐M947LCR‐B) Figure 8c: 16‐Channel CWDM Mux Front Panel (CWDM‐M1631LCR‐B) 33794 Rev. A https://www.transition.com/ Page 9 of 16 ... -
Page 10: Fiber Cable Handling & Installation
Transition Networks, Inc. CWDM‐xxxxxCR‐B Mux/Demux User Guide Fiber Cable Handling & Installation Handling Fiber Cables Accurate and repeatable data transmissions require clean fiber‐optic connections; therefore, inspect the ends of all connectors for dust or imperfections. To achieve the best possible performance, follow these guidelines: To prevent damage, keep the connectors’ protective cover on when not in use. • Use care in handling all fiber‐optic connectors. • Visually inspect fiber ends for signs of damage. • Always clean and inspect fiber connectors prior to making a connection. • Installing Fiber Cables To install the fiber cables, do the following: 1. Remove the protective cover from the port. See Figure 9. Figure 9: LC Port and Dust Cover 2. Locate a 2‐strand fiber cable with the appropriate male connectors installed on both ends. 3. Carefully insert the fiber cable into the CWDM and the device, as shown in Figure 10. Figure 10: Fiber Cable Connections 33794 Rev. A https://www.transition.com/ Page 10 of 16... -
Page 11: Theory Of Operation
Transition Networks, Inc. CWDM‐xxxxxCR Mux/Demux User Guide Theory of Operation Coarse Wave Division Multiplexing CWDM can be briefly described as a method of transmitting multiple signals over a fiber optic link through the use of separate, distinct wavelengths, based on the entire wavelength spectrum (1270nm – 1610nm in 20nm increments) defined by the ITU‐T G.694.2 CWDM standard. In general, CWDM components multiplex the optical signal outputs from ‘4’ or more electronic devices. These signals are sent over a single optical fiber. The signals are then demultiplexed into separate, distinct signals for input into electronic devices at the other end of the fiber optic link. See Figure 11. Figure 11: Coarse Wave Division Multiplexing Transition Networks CWDM devices utilize thin‐film filter technology. Since the CWDM devices are entirely passive, they can be used in conjunction with lower‐cost, noncooled laser sources. These CWDM devices are available in two main configurations: Multiplexer/Demultiplexer (Mux/Demux) modules, and Optical Add/Drop Multiplexer (OADM) modules. 33794 Rev. A https://www.transition.com/ Page 11 of 16 ... -
Page 12: Optical Add/Drop Multiplexer (Oadm)
Transition Networks, Inc. CWDM‐xxxxxCR‐B Mux/Demux User Guide Optical Add/Drop Multiplexer (OADM) The optical add/drop multiplexer module provides the ability to add or drop a single wavelength or multi‐wavelengths from a fully multiplexed optical signal. This allows intermediate locations between remote sites to access the common, point‐to‐point fiber segment linking them. Wavelengths that are not dropped pass through the OADM and continue on in the direction of the remote site. See Figure 12. Figure 12: Add/Drop Module CWDM Wavelength‐specific Optical Transceivers Transition Networks full line of media converters and switches can incorporate CWDM wavelengths with the addition of wavelength‐specific small form‐factor pluggable (SFP) optical transceivers or traditional fixed optical ports. CWDM SFPs comply with ITU‐T G.694.2 CWDM standard and are available for Fast Ethernet, Gigabit Ethernet, OC‐3/STM‐1, OC‐12/STM‐4, and OC‐48/STM‐16 data rates. Fixed optical ports are available in Fast Ethernet and Gigabit Ethernet, and in the same CWDM ITU wavelengths. 33794 Rev. A https://www.transition.com/ Page 12 of 16... -
Page 13: Technical Specifications
Transition Networks, Inc. CWDM‐xxxxxCR Mux/Demux User Guide Technical Specifications Add/Drop Mux Specifications Channel Wavelength ITU & ITU+1 (1260‐1620nm) Center Wavelength Accuracy +‐0.5 (nm) Channel Spacing 20 (nm) Channel Passband bandwidth (nm) +‐6.5 (nm) Channel Ripple 0.3dB Isolation Adjacent > 30dB Non‐Adjacent > 40dB Insertion Loss Temperature Sensitivity <= 0.005dB/°C Wavelength Temperature Shifting <0.002 nm/°C Polarization Dependent Loss ... - Page 14 Transition Networks, Inc. CWDM‐xxxxxCR‐B Mux/Demux User Guide CWDM‐M947LCR‐B Specifications Channel Wavelength ITU & ITU+1 (nm) Center Wavelength Accuracy +‐0.5 (nm) Channel Spacing 20 (nm) Channel Passband bandwidth (nm) +‐6.5 (nm) Insertion Loss with connector <= 2.5dB Channel Ripple 0.3dB Isolation Adjacent > 30dB Non‐Adjacent > 40dB Insertion Loss Temperature Sensitivity <= 0.005dB/°C Wavelength Temperature Shifting <0.002 nm/°C ...
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Page 15: Troubleshooting
Describe the failure: ___________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ Describe any action(s) already taken to resolve the problem (e.g., changing mode, rebooting, etc.): ________________________ ________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________ The model and serial numbers of other Transition Networks devices in the network: ________________________________________ __________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________ 33794 Rev. A https://www.transition.com/ Page 15 of 16 ... -
Page 16: Contact Us
Transition Networks, Inc. CWDM‐xxxxxCR‐B Mux/Demux User Guide Describe your network environment (layout, cable type, etc.): ________________________________________________________________ _________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________ _ Any previous Return Material Authorization (RMA) numbers: _________________________________________________________________ Contact Us Technical Support: is available 24‐hours a day. US and Canada: 1‐800‐260‐1312. International: 00‐1‐952‐941‐7600. Main Office: tel: +1.952.941.7600 | toll free: 1.800.526.9267 | fax: 952.941.2322 | sales@transition.com | techsupport@transition.com | customerservice@transition.com Address: Transition Networks | 10900 Red Circle Drive | Minnetonka, MN 55343, U.S.A. Web: https://www.transition.com Record of Revisions Rev Date Notes A 6/26/19 Initial release. Trademark notice: All trademarks and registered trademarks are the property of their respective owners. ...
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