Omnitron Systems Technology iConverter CWDM/X User manual

iConverter CWDM/X
2 and 4 Channel Single-Fiber MUX/DEMUX
USER MANUAL
Product Overview
The iConverter Single-Fiber Course Wave Division
MUX/DEMUX CWDM/X modules utilize a single-
fiber Common Port that aggregates two different
wavelengths from each dual ber Channel Port. Each
ber strand on the Channel Port supports a different
wavelength, one wavelength for transmit (Tx) and a
different wavelength for receive (Rx).
Single-Fiber CWDM/X modules are always used in
pairs (example: model 8870-0 used with 8871-0). The transmit wavelength of the Channel
Port at one end must match the receive wavelength of the same Channel Port at the other
end, and the receive wavelength of the Channel Port at one end must match the transmit
wavelength of the same Channel Port at the other end.
2-Channel CWDM/X modules support four wavelengths; two transmit and two receive.
4-Channel Single-Fiber CWDM/X modules support eight wavelengths and feature an optional
Expansion Port (EXP) that can be used to cascade two MUX/DEMUX modules, doubling the
channel capacity from 4-Channels to 8-Channels on the single-ber link.
Port Denitions
Figure 1: Port Locations for 2-Channel CWDM/X Module
Figure 2: Port Locations for 4-Channel CWDM/X Module
Model Numbers
Warranty
WARNING
The operating description in this Instruction Manual is for use by qualied personnel only. To avoid electrical shock, do not perform any
servicing of this unit other than that contained in the operating instructions, unless you are qualied and certied to do so by Omnitron
Systems Technology.
Warranty
This product is warranted to the original purchaser against defects in material and workmanship for a period of ONE YEAR from the date
of shipment. You may register your product on the Internet at http://www.omnitron-systems.com. During the warranty period, Omnitron
will, at its option, repair or replace a product which is proven to be defective.
For warranty service, the product must be sent to an Omnitron designated facility, at Buyer’s expense. Omnitron will pay the shipping
charge to return the product to Buyer’s designated US address using Omnitron’s standard shipping method.
Limitation of Warranty
The foregoing warranty shall not apply to defects resulting from improper or inadequate use and/or maintenance of the equipment by
Buyer, Buyer-supplied equipment, Buyer-supplied interfacing, unauthorized modications or tampering with equipment (including removal
of equipment cover by personnel not specically authorized and certied by Omnitron), or misuse, or operating outside the environmental
specication of the product (including but not limited to voltage, ambient temperature, radiation, unusual dust, etc.), or improper site
preparation or maintenance.
No other warranty is expressed or implied. Omnitron specically disclaims the implied warranties of merchantability and tness for any
particular purpose.
Exclusive Remedies
The remedies provided herein are the Buyer’s sole and exclusive remedies. Omnitron shall not be liable for any direct, indirect, special,
incidental, or consequential damages, whether based on contract, tort, or any legal theory.
040-08870-001A 1/09
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Omnitron Systems Technology * 140 Technology Dr. #500 * Irvine, CA 92618
949.250.6510 tel * 949.250.6514 fax * www.omnitron-systems.com
Model Type Model
Number
Channel Port
ITU Center Wavelength (nm)
Tx/Rx
Expansion
Port
2-Channel
MUX/DEMUXw
8870-0 1471/1491, 1511/1531 No
8871-0 1491/1471, 1531/1511 No
8872-0 1551/1571, 1591/1611 No
8873-0 1571/1551, 1611/1591 No
4-Channel
MUX/DEMUXw
8874-0 1271/1291, 1311/1331, 1351/1371, 1431/1451 No
8875-0 1291/1271, 1331/1311, 1371/1351, 1451/1431 No
8874-1 1271/1291, 1311/1331, 1351/1371, 1431/1451 Yes1
8875-1 1291/1271, 1331/1311, 1371/1351, 1451/1431 Yes1
8876-0 1471/1491, 1511/1531, 1551/1571, 1591/1611 No
8877-0 1491/1471, 1531/1511, 1571/1551, 1611/1591 No
8876-1 1471/1491, 1511/1531, 1551/1571, 1591/1611 Yes2
8877-1 1491/1471, 1531/1511, 1571/1551, 1611/1591 Yes2
sSingle-ber CWDM/X models must be used in pairs. The Tx wavelengths on one end has to match the Rx wavelengths
on the other.
1 EXP port supports 1471nm to 1611nm. Use with 8870-0, 8871-0, 8872-0, 8873-0, 8876-0 or 8877-0.
2 EXP port supports 1271nm to 1451nm. Use with 8874-0 or 8875-0.

Channel Port
The Channel Ports transmit and receive signals on specic CWDM wavelengths. Each
Channel Port supports a different transmit and receive wavelength based on the CWDM/X
model. The Channel Ports are multiplexed onto and demultiplexed from the Common
Port.
Figure 3 shows a pair of 2-Channel CWDM/X modules connected via a single-mode,
single-ber cable. A total of four wavelengths are supported on each 2-Channel CWDM/X
module.
Figure 3: A Pair of 2-Channel MUX/DEMUX Modules
When connecting external dual ber transceivers to the Channel Port, select an optical
transceiver that matches the receive wavelength of the specic Channel Port. Since the
Channel Port uses two different wavelengths over dual ber, one wavelength for transmit (Tx)
and a different wavelength for receive (Rx), the receiver of the external dual ber transceiver
must have the capability to detect the transmit wavelength of the Channel Port. Typically,
the receiver of a dual ber transceiver has an operating center wavelength of 1260nm to
1610nm. Verify the external transceiver’s optical parameters before using.
Common Port
The Common Port transmits and receives the aggregated wavelengths connected to the
Channel and Expansion Ports over a single-ber common link. CWDM/X modules are always
used in pairs. When connecting two CWDM/X modules, the COM-L port is connected to the
COM-R port on the matching pair.
Expansion Port
The optional Expansion Port (EXP) enables the cascading of two CWDM/X modules as
shown in Figure 4. The Expansion Port supports the cascading of two 4-Channel modules
or the cascading of a 4-Channel module with a 2-Channel module by connecting to the
Common Port of another CWDM/X module. When cascading, make sure the wavelengths
of the Channel Ports on each module are unique and not duplicated.
Figure 4: Two Cascaded 4-Channel MUX/DEMUX Modules
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Installation
1. Carefully slide the module into an open slot in an iConverter chassis. Align the module
with the installation guides and ensure that the module is rmly seated against the
backplane. Secure the module by fastening the front panel thumbscrew (push in and
turn clockwise to tighten) to the chassis front. The CWDM/X module requires no external
power, however, if management is required, the module must be installed in an iConverter
powered chassis with a Network Management Module (NMM2 model 8000N-1).
2. Connect a single-mode, dual ber duplex LC cable between the Channel Port of the
CWDM/X module and the attached device. It is important to ensure that the wavelength
on each ber strand of the CWDM/X matches the wavelengths of the attached device.
Connect all Channel Ports in this manner. Ensure that the transmit (Tx) is attached to
the receive side of the device at the other end, and the receive (Rx) is attached to the
transmit side.
3. Connect a single-mode, single-ber simplex LC cable between the Common Ports on
the CWDM/X modules (this connection may be made through ber patch panels since
the modules may not be co-located). Ensure that the COM-L port at one end connects
to the COM-R port at the other end.
4. When cascading two 4-Channel CWDM/X modules or a 4-Channel and a 2-Channel,
connect a single-mode single-ber simplex LC cable between the Common Port on
one CWDM/X module and the Expansion Port on the other CWDM/X module (see
Figure 4). Ensure that the wavelengths of the Channel Ports on the CWDM/X modules
are unique.
NOTE: The iConverter CWDM/X modules can not be installed in slots 4, 8, 12 and 16 of
a 19-Module Chassis or in the top slot of a 2-Module Chassis or in a 1-Module Redundant
Power Chassis.
Design Considerations
iConverter CWDM/X modules are passive devices that require no external power. Attenuation
(signal loss) of less than 2.7dB will be realized through each port on the module (see
the CWDM/X Data Sheet for exact attenuation specications for each model). Detailed
calculations should be performed for each ber optic link in the network to ensure the proper
optical devices are specied with sufcient transmitter power.
When calculating optical loss, ensure that the total attenuation, plus a safety factor (typically
3dB), does not exceed the optical power budget. The optical power budget is the difference
between the transmitter optical output power and the receiver’s optical sensitivity. The
transmitter optical output power and receiver optical sensitivity values can be obtained from
the manufacturers of the respective equipment.
For more information, access Omnitron’s documentation download web page to view all
relevant documents:
http://www.omnitron-systems.com/downloads.php
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