network WOC-2-50-50 Manual de usuario
network-electronics.com
Wideband Optical Couplers
Rev. 3
Flashlink User Manual
WOC-2-50-50
WOC-2-90-10
WOC-2-95-05
WOC-4-25
WOC-2-50-50/-90-10/-95-05 WOC-4-25 Rev. 3
Network Electronics ASA
Thorøya
P.O. Box 1020
N-3204 Sandefjord, Norway
Phone: +47 33 48 99 99
Fax: +47 33 48 99 98
Email: [email protected]
www.network-electronics.com
Support Phone: +47 90 60 99 99
Revision history
Current revision of this document is the uppermost in the table below.
Rev. Repl. Date Sign Change description
3 2 2007-06-07 RS Added WOC-4-25, applied new template, added
new EC Declaration of Conformity, and added
Appendix A Materials declaration and recycling
information
2 1 2003-08-16 RS Added specification on multi mode coupler
1 0 2001-05-09 RS Changed Laser Safety Precaution description
0 A 2000-12-15 NBS Renamed Optronics to Electronics & Rev. Control
A - 2000-08-09 RS Initial revision
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Contents
Revision history..........................................................................................................2
1 Product overview....................................................................................................4
2 Specifications..........................................................................................................5
2.1 WOC-2-xx-xx ................................................................................................................ 5
2.1.1 Single mode fibre (9/125 um)..................................................................................... 5
2.1.2 Multi mode fibre (62.5/125um).................................................................................. 5
2.2 WOC-4-25..................................................................................................................... 5
2.2.1 Single mode fibre (9/125um)...................................................................................... 5
3 Connections ...........................................................................................................6
3.1 Mounting the connector module................................................................................... 7
3.2 Preparation of module ................................................................................................... 7
3.3 Applying signals to the WOC-2-xx-xx connector module ............................................... 8
3.4 Application examples..................................................................................................... 8
4 Module status.......................................................................................................10
4.1 Front Panel - Status Monitoring ................................................................................... 10
5 Laser safety precautions ........................................................................................11
General environmental requirements for Network Electronics equipment................12
Product Warranty ....................................................................................................13
Appendix A Materials declaration and recycling information ...................................14
A.1 Materials declaration ................................................................................................... 14
A.2 Recycling information.................................................................................................. 14
EC Declaration of Conformity ..................................................................................15
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1Product overview
The Wideband Optical Couplers (WOC) in the Flashlink range are all-optical power splitters
or combiners. One or multiple wavelengths can be used on the fibres. Today the product
offering consists of WOC-2-xx-xx which is a 1:2 optical coupler available with different
coupling ratios. The WOC-4-25 is a 1:4 optical coupler, where the optical power is divided
and distributed equally to the four output ports.
Figure 1: Block diagram of the WOC-2 module operation.
The Flashlink 1:2 Wideband Optical Coupler is a fibre optical splitter/combiner module for
use together with the W03-C1 connector module.
A typical application for these units is multiple distribution and linear, tapped fibre optic bus
structures. The unit is passive and there is no need for power or control.
The WOC-2 optical coupler is made for the 2nd and 3rd optical window (1310nm and
1550nm) and is available with three different split ratios:
−WOC-2-50-5050%-50% split ratio
−WOC-2-90-1090%-10% split ratio
−WOC-2-95-0595%-05% split ratio
The WOC-2 has two input/output ports and one common port. The product is also available
with multi mode fibre on request.
Figure 2: Block diagram of the WOC-4-25 module operation.
A typical application for the WOC-4-25 is distribution to multiple locations of single or
multiple signals using WDM.
The WOC-4-25 optical coupler is made for wavelengths from 1260 up to 1620nm thus
covering the whole CWDM band.
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2Specifications
2.1 WOC-2-xx-xx
2.1.1 Single mode fibre (9/125 um)
Optical wavelength: 2nd & 3rd opt. window (1310 nm & 1550 nm)
Optical bandpass: 1270-1350 nm & 1510-1590 nm
Return loss: Better than 40 dB w/SM fibre
Directivity: Better than 55 dB
Transmission circuit fibre: Single Mode
Connector: SC/UPC
Split ratios and corresponding maximum insertion loss (incl. connectors):
WOC-2-50-50: 50 % / 50 % 4.3 dB / 4.3 dB
WOC-2-90-10: 90 % / 10 % 1.33 dB / 11.7 dB
WOC-2-95-05: 95 % / 05 % 1.1 dB / 15.3 dB
2.1.2 Multi mode fibre (62.5/125um)
Optical wavelength: 2nd opt. window (1310nm)
Directivity: better than 40dB
Transmission circuit fibre: Multi Mode
Connector: SC/UPC
Split ratios and corresponding maximum insertion loss (incl. connectors):
WOC-2-50-50: 50 % / 50 % 4.8 dB / 4.8 dB
2.2 WOC-4-25
2.2.1 Single mode fibre (9/125um)
Optical passband: 1260-1620 nm
Return loss: Better than 40 dB typ w/SM fibre
Directivity: Better than 55 dB typ
Transmission circuit fibre: Single Mode
Connector: SC/UPC
Split ratio: 25%/25%/25%/25%
Insertion loss with connectors: Max 9dB over passband.
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3Connections
The WOC-2 has the same connector module as theWDM-2: W03-C1. This module is
mounted at the rear of the sub-rack. The module is shown in Figure 3.
Figure 3: Overview of the W03-C1 connector module.
Figure 4: Overview of the WOC-4-25 connector module
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The WOC-4-25 is a self contained box similar to the CWDM filters that is mounted
permanently in the Flashlink FR-2RU-10-2 from the rear.
Figure 5: The WOC-4-25
The WOC-4-25 can also be delivered in the N-BOX, which is used for stand alone
applications.
3.1 Mounting the connector module
This section only applies to the WOC-2-xx-xx if the module is not purchased pre-mounted in
a sub-rack.
The details of how the connector module is mounted, is found in the user manual for the
sub-rack frame FR-2RU-10-2.
This manual is also available from our web site: http://www.network-electronics.com/
3.2 Preparation of module
Just before the module and the connector module are put together, the dust caps should be
removed and stored in the enclosed plastic bag. The dust caps are removed from the
connector module and the module card as we see in Figure 6 and Figure 7.
Figure 6: Removal of the dust caps from the WOC connector module.
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Figure 7: Removal of plastic dust caps from WOC module.
3.3 Applying signals to the WOC-2-xx-xx connector module
Optical 1 is always the common port (orange lead).
Optical 2 has largest1coupling ratio (blue lead)
Optical 3 has lowest coupling ratio (natural lead).
3.4 Application examples
We show some examples of how a WOC can be used for different applications.
Tx
Rx 1
Rx 2
WO C
50 / 50
Figure 8: Redundant solution – Same signal on two different fibres.
In Figure 8 we have a solution where the signal path from transmitter (Tx) to the receiver
(Rx) is redundant. Since both Rx1 and Rx2 are located at the same place, the signal is
divided into two equal parts and transmitted over two different fibres. At the receiver end
the same signal is present from different receiver cards, a redundant solution. This solution is
also suitable for transmitting the same signal to two different locations; each located
approximately the same distance from the transmitter.
If the distances from the two different receiver-locations to the transmitter are very different
a WOC-2-90-10 or a WOC-2-95-05 is more suitable. Which WOC to use in which case can
be found by calculating the optical transmission budgets for the involved links, or by calling
your Network Electronics representative. More information on transmission budgets can be
1A WOC-2-50-50 has the same coupling ratio for both Optical 2 and Optical 3.
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WOC-2-50-50/-90-10/-95-05 WOC-4-25 Rev. 3
found in the user manual for the sub-rack frame, and on our web site http://www.network-
electronics.com/
Tx
Rx 1
Rx 2
WO C
90 / 10
90
10
Figure 9: Signal tapping / monitoring / distribution with a WOC-2-90-10.
If one of the Rxs for some reason is not connected, we recommend bypassing the
WOC module until the Rx is in operation again. This is to avoid back-reflections
degrading the signal.
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4Module status
The WOC-2-xx-xx and the WOC-4-25 are all-optical modules with no electrical connections;
hence there will be no on-board processing or monitoring. If the module is faulty this can be
monitored on the receiver end. The only possibilities for the module to fail are if either te
fibre is broken, or the fibre connections at the rear are bad. Then no signal will pass the
module.
4.1 Front Panel - Status Monitoring
The WOC-2-xx-xx and the WOC-4-25 are all-optical modules, so there are no LEDs on the
module.
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Este manual sirve para los siguientes modelos
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