Artel DigiLink DLC170, Установка и эксплуатация

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2 DLC170 Function Modules Installation and Operations Manual
DLC170 Function Modules
DLC170 Laser Warnings
The SFP module used in the DLC170 has a transmitter that contains a Class 1 laser. You must adhere to the
standard safety practices for handling a Class 1 laser product, including the following warning.
Warning
Never stare directly into a fiber optic connector.
Although the light used in most fiber optic transmissions is not visible to the naked eye, potentially
harmful levels of radiation may be present at the optical output ports and unconnected transmit fiber
ends.
Failure to observe this warning could result in personal injury.
Understanding and Using the DLC170AD
The DLC170AD uses advanced high performance 12-bit video processing with adaptive 3D comb filters to
convert NTSC-M or PAL-B/G analog composite video into ITU-R BT.601/656 compliant, 525 or 625 line, 4:2:2
component digital video. The DLC170AD converts four channels of analog audio sampled at 48 kHz and then
embeds the signals as either 20-bit or 24-bit samples into the digital video per SMPTE 272M for a total of four
analog channels. You can insert the audio into any one of the four groups.
Using the backplane to provide jumper-free connections, you can add additional audio channel groups by
cascading the DLC170AD digital output into one or more DLC150E audio embedders (see the DLC150E
Function Module Installation and Operations Manual ). This allows up to 16 audio channels (all four SMPTE 272M
groups) to be embedded into a single DL4000 4-slot chassis. An SFP installed in the final DLC150E module
provides the optical output of the combined signals.
The DLC170AD front panel monitor jack can output either analog or digital video. When set to analog, you can
check the incoming analog video for signal level and quality using conventional analog video equipment.
Setting the monitor jack to digital enables you to use digital video test equipment to check the converted
video in 270 Mb/s SDI format with embedded audio.
The DLC170AD features include the following:
• Single card composite video and analog audio to SDI conversion with optical transmitter (electrical-
to-optical)
• Converts composite video (NTSC/PAL) to SDI (SMPTE 259M):
– Analog composite 75 Ohm video input BNC