OFM-4264 Instruction Book
Revision 0
www.irtelectronics.com
Page 6 of 8
4264-OFM_ib_Rev0.doc
Installation
Pre-installation:
Handling:
This equipment may contain or be connected to static sensitive devices and proper static free handling precautions
should be observed.
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures
should be followed when inserting or removing cards from these bags.
Power:
AC mains supply:
Ensure that operating voltage of unit and local supply voltage match and that correct rating
fuse is installed for local supply.
DC supply:
Ensure that the correct polarity is observed and that DC supply voltage is maintained within
the operating range specified.
Earthing:
The earth path is dependent on the type of frame selected. In every case particular care should be taken to ensure
that the frame is connected to earth for safety reasons. See frame manual for details.
Signal earth:
For safety 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 for selected frame type.
Fibre Connections:
The OFM-4264 card comes standard with SC/PC female types of connectors for connection with single mode fibre
fitted with the corresponding mating male connectors.
There are four inputs/outputs labelled 1510nm, 1530nm, 1550nm and 1570nm. Each of these inputs/outputs must
mate with the same corresponding wavelength of a dFB (CWDM) type of laser transmitter/receiver. Transmitters
may be any type of IRT laser transmitter such as ASI/SDI, L-Band etc. just so long as they are fitted with a dFB laser
at the appropriate wavelength. Receiver modules are not wavelength sensitive and will work with any of the input
wavelengths.
The output of the OFM-4264 is the multiplexed version of the combined inputs. This feeds into the input of a
second OFM-4264 receiving unit.
