Pure Digital Fiberlink 7235, Руководство пользователя

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GENERAL INFORMATION
The Pure Digital Fiberlink
®
7235 plug-in receiver card for RGBHV
video with stereo audio fits within the video expansion slot located on
fourth-generation Pioneer Display Panels* (PDPs), allowing the PDP
to directly receive signals over one fiber from any Pure Digital Fiberlink
7220 Series transmitter, repeater or 8000/8100 Series O.D.A. It
operates at 1310 nm wavelength and works with either single mode or
multimode fiber. An external baseband output allows connection to an
additional PDP or distribution amplifier. An active optical loop-through
provides the ability to support drop-and-repeat system configurations.
The 7231 plug-in card employs all digital processing, thereby pro-
viding a noise-free signal that maintains all of its initial parameters,
regardless of fiber optic cable attenuation. It also guarantees consistent
video and audio quality across multiple, daisy-chained displays.
Introduction
Technical Specifications
Model Part Number Configuration:
Unit operates at
1310 nm wavelength
with single mode or
multimode fiber. ST
connectors are
provided.
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Video:
Input Impedance ....................... RGB: 75 Ohms; H&V: Hi-Z
Input Level ................................ RGB: 714 mV p-p; H&V: 3 to 5 V p-p
H Sync Frequency Range ......... 15 to 60 kHz
V Sync Frequency Range ......... 30 to 85 Hz
Video Channels Supported ........ 1 RGBHV
Receiver Type Part Number
1 internal display output; 1 external output 7235-P7S
and 1 optical loop-through output
OPERATING POINTERS AND TROUBLESHOOTING
Optical Fiber:
The 7235 receiver card operates with most multimode (MM) and
single mode (SM) optical fibers. All models within the 7220 Series use
the same 1310 nm wavelength and optics for transmitting over multi-
mode or single mode fiber, but be aware that the type of fiber you use
will affect the system’s loss budget and the maximum transmission dis-
tance that it can support.
Troubleshooting:
Multimode fiber optic cable contains an optical fiber with a light
carrying “core” that is only .0025 inches (62.5 microns) in diameter.
Single mode fiber optic cable has an even smaller “core,” only .00032
to .0004 inches (8-10 microns). This is smaller than a human hair!
Therefore, any minute particles of dirt or dust can easily block the fiber
from accepting or radiating light. To prevent this from happening, al-
ways use the provided dust caps whenever optical connectors are ex-
posed to air. It is also a good idea to gently clean the tip of an optical
connector with a lint-free cloth moistened with alcohol whenever dust
is suspected.
The status of the VIDEO and AUDIO indicator LEDs should provide
the first clue as to the origin of an operational failure. If these are off, it
usually means that the fiber is broken or has too much attenuation. Next,
be certain that the input and output signal connections are correct.
If, after reviewing the above possibilities, the system is still not oper-
ating, please contact the Customer Service Department for further as-
sistance.
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* Compatible PDP models (as of Sept. 2005) include:
PDP-504CMX, PDP-43MXE1, PDP-50MXE1, PDP-434CMX, PDP-504CMX-S,
PDP-43MXE1-S, PDP-50MX1-S. Other models may be added by Pioneer.