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5
5-1.
Optical Fibre Overview
5-2.
Cleaning of the Connector and Cable
Chapter 5 Optical Fibre Transmission System
52
BVP-E10 Series Product Information Manual
The wide band triax system provided by the CA-570/P
and CCU-550D/DP and CCU-700A/P ensures robust,
accurate video and audio transmission from camera
head to CCU. However, the alternative Fibre
ttansmission system employed in the CA-950/P and
CCU-900/P provides several important benefits.
• Long distance transmission. Video and audsio
signals can be transmited up to 3 km (1.86 miles)*
including power. If power is supplied locally at the
camera head, maximum distance is extended to 10
km (6.24miles)
• Fully digital transmission. 4:2:2 component video
signals are transmitted between camera head and
CCU, ensuring very high quality.
The optical contacts of the fibre interface are
vulnerable to dust and dirt, so care should be
exercised to avoid unnecessary exposure to any
contamination. In particular, the dust covers supplied
should always be ued when the cable is disconnected.
Regular cleaning of the optical contact of the units
mentioned below is strongly recomended
• CCU connector of CA-905/P
• Camera connector of the CCU-900/P
• Optical/Electrical cable
When using the BVP-E10 Series with the large lens
adaptor CA-905L, it is recommended to also clean the
following optical items.
• CA cable
• CCU connector
Follow the procedures below for cleaning.
Tools Required
• Alignment sleeve remover HC-001 (for female
connector)
Sony P/N: J-6480-010-A
Note
Insert the shorter nose end when removing/installing
the alignment sleeve.
Grasp the handle, not the shock absorber.
Shock absorber portion
Handle
Insert the shorter nose end
• Cotton swabs (commercially available)
Note
Use the cotton swab with a diameter of around 4 mm.
The cotton swab with a diameter more than 5 mm does
not reach far enough in to the inner part of the cable,
to clean the tip of the optical contact.
• No performance degradation even at long cable
lengths. Unlike conventional triax systems, video
quality is not affected by cable length. Full facilities,
including teleprompter and return viewfinder video
are maintained up to maximum cable length.
To provide the high-quality signal transmission
between the CCU-900/P and BVP-E10 Series, the
SMPTE standard optical fibre connector and cable
have been adopted. The connecting cable uses two
single-mode optical fibre lines, two control lines, and
two power lines to carry digitized video, audio, control
signals and power to the camera.
* When supplying power to the camera via the optical fibre
cable, the maximum cable length varies with the camera
system configuration and lens type, the size of the optical
fibre cable and the number of cable connectors.
Cleaning
Male connector
Clean the tip of the white optical contacts with a cotton
swab moistened with alcohol.
Female connector
The optical contacts for the female connector are in an
unexposed area. When cleaning, it is necessary to
expose the contacts by first removing the alignment
sleeve. Proceed as follows.
1.
Insert the alignment sleeve remover into the
alignment sleeve in a straight line and turn it
clockwise.
2.
When the turning stops, forcedly pull out the
remover in the straight line.
Note
The alignment sleeve can be removed/reinstalled
with the sleeve itself attached to the tip of the
remover.
Optical contacts (white)
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