IRT OFM-4264 User manual
OFM-4264 Instruction Book Revision 0
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IRT Eurocard
Type OFM-4264
4 Channel CWDM Fibre Optic
Multiplexer Demultiplexer
Designed and manufactured in Australia
IRT can be found on the Internet at:
http: www.irtelectronics.com
I R T Electronics Pty Ltd A.B.N. 35 000 832 575
26 Hotham Parade, ARTARMON N.S.W. 2064 AUSTRALIA
National: Phone: (02) 9439 3744 Fax: (02) 9439 7439
International: +61 2 9439 3744 +61 2 9439 7439
Email: sales@irtelectronics.com
Web: www.irtelectronics.com
OFM-4264 Instruction Book Revision 0
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IRT Eurocard
Type OFM-4264
4 Channel CWDM Fibre Optic
Multiplexer Demultiplexer
Revision History
Revision Date By Change Description Applicable to:
0 29/10/2007 AL Original Issue. S/N: ≥ 0710001
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IRT Eurocard
Type OFM-4264
4 Channel CWDM Fibre Optic
Multiplexer Demultiplexer
Instruction Book
Table o Contents
Section Page
Revision History 2
Operational Sa ety 3
General Description 4
Technical Speci ications 5
Installation 6
Front and rear layouts 7
Maintenance & Storage 8
Warranty & Service 8
Equipment return 8
This instruction book applies to units later than S/N: 0710001.
Operational Safety:
WARNING
Operation o electronic equipment involves the use o voltages and currents that
may be dangerous to human li e. Note that under certain conditions dangerous
potentials may exist in some circuits when power controls are in the OFF position.
Maintenance personnel should observe all sa ety regulations.
Do not make any adjustments inside equipment with power ON unless proper
precautions are observed. All internal adjustments should only be made by suitably
quali ied personnel. All operational adjustments are available externally without
the need or removing covers or use o extender cards.
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IRT Eurocard
Type OFM-4264
4 Channel CWDM Fibre Optic
Multiplexer Demultiplexer
General Description
The OFM-4264 is coarse wave division optical wavelength division multiplexer / demultiplexer (CWDM) or
combining and separating up to our optical signals o 1510nm, 1530nm, 1550nm and 1570nm wavelengths or
either uni-directional or bi-directional transmission on the one ibre.
With the high cost o hiring or installing additional dark ibre it makes economical sense to maximise the use o
existing in rastructure.
Used in combination with IRT’s extensive range o ibre transmitters / receivers and inter ace modules, a myriad o
di erent signals types can be sent down the one ibre. With IRT’s our channel ibre multiplexer/demultiplexer
modules, or example, up to sixteen SDI signals can be sent down a single ibre. Or up to sixty- our ASI signals can
be sent when also used with IRT’s ASI multiplexer/demultiplexer modules.
The OFM-4264 is designed to mount in IRT’s 1RU or 4000 series 3RU rame.
Standard features:
•
Four set CWDM optical wavelength inputs and outputs
•
Uni-directional or bi-directional operation
•
Low insertion loss
•
SC PC type of optical connectors
OFM-4264
1570nm
1550nm
I/O
1530nm
1510nm
OFM-4264
1570nm
1550nm
I/O
1530nm
1510nm
Single
Fibre
4 Channel CWDM Fibre Mux/DeMux Block Diagram
Fibre Optic Tx or Rx.
1570nm
Fibre Optic Tx or Rx.
1570nm
Fibre Optic Tx or Rx.
1550nm
Fibre Optic Tx or Rx.
1550nm
Fibre Optic Tx or Rx.
1530nm
Fibre Optic Tx or Rx.
1530nm
Fibre Optic Tx or Rx.
1510nm
Fibre Optic Tx or Rx.
1510nm
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Technical Specifications
IRT Eurocard module
Type OFM-4264
Type 4 Channel CWDM multiplexer.
Wavelengths 1510 nm, 1530 nm, 1550 nm & 1570 nm.
Fibre Single mode.
Connector Type SC/PC.
Maximum Power Handling 300 mW.
Channel Passband > 13 nm (typically 15nm).
Insertion loss < 2.5 dB (< 2.0 dB typically).
Passband Ripple < 0.5 dB (typically 0.3 dB).
Uni ormity < 1.5 dB.
Return Loss > 45 dB (typically 50 dB).
Directivity > 55 dB.
Channel Isolation > 30 dB (typically 40 dB).
Non Adjacent Channel Isolation > 45 dB (typically 50 dB).
Polarization Dependent Loss < 0.2 dB.
Other
Temperature range -10 - 70° C ambient
Mechanical Suitable or mounting in IRT’s 19" 1RU or 4000 series 3RU rack rame
with input and output connections on the rear panel
Finish Front panel Grey background, black lettering & red IRT logo
Rear assembly Common connection mounted on bracket rom main PCB
Dimensions 6 HP x 3 U x 220 mm IRT Eurocard
Due to our policy of continuing development, these specifications are subject to change without notice.
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Installation
Pre-installation:
Handling:
This equipment may contain or be connected to static sensitive devices and proper static ree handling precautions
should be observed.
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures
should be ollowed when inserting or removing cards rom these bags.
Power:
AC mains supply: Ensure that operating voltage o unit and local supply voltage match and that correct rating
use is installed or local supply.
DC supply: Ensure that the correct polarity is observed and that DC supply voltage is maintained within
the operating range speci ied.
Earthing:
The earth path is dependent on the type o rame selected. In every case particular care should be taken to ensure
that the rame is connected to earth or sa ety reasons. See rame manual or details.
Signal earth: For sa ety reasons a connection is made between signal earth and chassis earth. No attempt should
be made to break this connection.
Installation in frame or chassis:
See details in separate manual or selected rame type.
Fibre Connections:
The OFM-4264 card comes standard with SC/PC emale types o connectors or connection with single mode ibre
itted with the corresponding mating male connectors.
There are our inputs/outputs labelled 1510nm, 1530nm, 1550nm and 1570nm. Each o these inputs/outputs must
mate with the same corresponding wavelength o a dFB (CWDM) type o laser transmitter/receiver. Transmitters
may be any type o IRT laser transmitter such as ASI/SDI, L-Band etc. just so long as they are itted with a dFB laser
at the appropriate wavelength. Receiver modules are not wavelength sensitive and will work with any o the input
wavelengths.
The output o the OFM-4264 is the multiplexed version o the combined inputs. This eeds into the input o a
second OFM-4264 receiving unit.
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Front & rear panel connector diagrams
The ollowing ront panel and rear assembly drawings are not to scale and are intended to show connection order
and approximate layout only.
CAUTION
Direct
connections
to module
N140
O F M- 4 2 6 4
4 Cha n nel CW DM
F i br e Op t ic
Mu x/DeM ux
I/O
1 51 0
(n m )
1 53 0
(n m )
1 55 0
(n m )
1 57 0
(n m )
OF M - 42 6 4
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Maintenance & Storage
Maintenance:
No regular maintenance is required.
Care however should be taken to ensure that all connectors are kept clean and ree rom contamination o any
kind. This is especially important in ibre optic equipment where cleanliness o optical connections is critical to
per ormance.
Storage:
I the equipment is not to be used or an extended period, it is recommended the whole unit be placed in a sealed
plastic bag to prevent dust contamination. In areas o high humidity a suitably sized bag o silica gel should be
included to deter corrosion.
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures
should be ollowed when inserting or removing cards rom these bags.
Warranty & Service
Equipment is covered by a limited warranty period o three years rom date o irst delivery unless contrary
conditions apply under a particular contract o supply. For situations when “No Fault Found” or repairs, a
minimum charge o 1 hour’s labour, at IRT’s current labour charge rate, will apply, whether the equipment is
within the warranty period or not.
Equipment warranty is limited to aults attributable to de ects in original design or manu acture. Warranty on
components shall be extended by IRT only to the extent obtainable rom the component supplier.
Equipment return:
Be ore arranging service, ensure that the ault is in the unit to be serviced and not in associated equipment. I
possible, con irm this by substitution.
Be ore returning equipment contact should be made with IRT or your local agent to determine whether the
equipment can be serviced in the ield or should be returned or repair.
The equipment should be properly packed or return observing antistatic procedures.
The ollowing in ormation should accompany the unit to be returned:
1. A ault report should be included indicating the nature o the ault
2. The operating conditions under which the ault initially occurred.
3. Any additional in ormation, which may be o assistance in ault location and remedy.
4. A contact name and telephone and ax numbers.
5. Details o payment method or items not covered by warranty.
6. Full return address.
7. For situations when “No Fault Found” or repairs, a minimum charge o 1 hour’s labour will apply,
whether the equipment is within the warranty period or not. Contact IRT or current hourly rate.
Please note that all reight charges are the responsibility o the customer.
The equipment should be returned to the agent who originally supplied the equipment or, where this is not
possible, to IRT direct as ollows.
Equipment Service
IRT Electronics Pty Ltd
26 Hotham Parade
ARTARMON
N.S.W. 2064
AUSTRALIA
Phone: 61 2 9439 3744 Fax: 61 2 9439 7439
Email: [email protected]
Table of contents
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