Calrec OMEGA, Руководство по установке

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Omega
with Bluefin
Media Converters
Connections to the modular Hydra I/O box
are via RJ45 connectors on the front of
the unit’s processor module. As this is a
copper interface, when using fibre cabling,
it is necessary for media converters to be
used between the Gigabit switch and the
Modular Hydra I/O boxes.
Calrec offer 1U rack mounting tray, part
EC5453 and this can be fitted with one
or more pairs of media convertor type
AT-MC1008/SP with appropriate SFPs as
listed alongside.
Preventive maintenance of optical
cables
The successful use of fibre optics
depends upon the correct cleaning and
maintenance regime. These relate to
cleanliness of the connector ends of the
fibre and the optical transceiver ports, i.e.
the receptacles at the laser transmitter
and photo diode receiver that the fibre
connectors plug into.
Small oil micro-deposits and dirt/dust
particles on fibre optic cable optical
surfaces cause a loss of light or degraded
signal power which may ultimately
cause intermittent problems in the
optical connection. Laser power density
eventually burns contaminants into the
optical surfaces causing the fibre to
produce inaccurate results effectively
rendering it unusable. Contaminated
cable connectors can also transfer
contaminants and into the “Optical Sub-
Assembly” (OSA) barrels of the Optical
Module with which they are mated and
this can be a particular risk in remote
truck applications.
WARNING
Never look into the end of an
optical interface while the device is
operational. Laser radiation can be
harmful to the human eye and injury
may occur.
Cautions
Do not remove transceiver covers
when operating.
Ensure the unit power is turned off
during cleaning.
Ensure that other power/light sources
are disabled during the cleaning of
optical interfaces.
Do not install any unauthorized
modifications to the optical devices.
The following tools can be useful for
optical maintenance
Compressed air
Clean Dry Air is essential to ensure the
aerosol stream is free of dust, water and
oil. Use filtered compressed air or canned
compressed air, available at any laboratory
supplier or camera shop.
Lens paper
A long fibre, low ash content type; having
no chemical additives is recommended to
minimize particulates and the chance of
streaking and/or scratching the optical
surfaces. Lens paper is widely available at
any laboratory supplier or camera shop.
•
•
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CABLE TYPE CONNECTOR
MAX
DISTANCE
CALREC PART
SMALL FORM
FACTOR
PLUGABLE
(SFP )
OPTICAL
POWER
BUDGET
Copper CAT
5e/6 Ethernet
RJ45 90 m /
296 feet
- n/a n/a
Fibre
62.5/125mm
Multimode
LC Duplex 275 m /
905 feet
491-087
SX - AFBR -
5717LZ
7.5 dB
Fibre 50/125mm
Multimode
LC Duplex 550 m /
1810 feet
491-087
SX - AFBR -
5717LZ 7.5 dB
Fibre
62.5/125mm
Multimode
LC Duplex
550 m /
1810 feet
491-072
LX - AFCT -
5715LZ
7.5 dB
Fibre 50/125mm
Multimode
LC Duplex 550 m /
1810 feet
491-072
LX - AFCT -
5715LZ
7.5 dB
Fibre 8/125mm
Singlemode
LC Duplex 10 km /
6.2 miles
491-072
LX - AFCT -
5715LZ
8 dB
Fibre 8/125mm
Singlemode LC Duplex
70 km /
43.6 miles
491-060 LH - J4860A 23 dB
Isopropyl Alcohol or Methanol
Cleaning solutions are available at any
laboratory supplier. Isopropyl Alcohol
is also available at local pharmacies, or
camera shops. Special care should be
practised when using chemicals and it is
important to follow the manufacturer’s
product guidelines.
Inspection Microscope
A 200 x (for multimode) or 400 x (for
single mode) magnification inspection
scope is necessary tool for inspecting
the connector ends of fibre cabling and
optical sub-assemblies for cracks and
deposits of oil and dirt. These Inspection
Scopes are available from various fibre
optic suppliers.
Make doubly sure that no lasers
transmitters are operational before
carrying out examinations with this
device.