Table of Contents
Advertisement
1 TECHNICAL SUMMARY
1.1
BRIEF DESCRIPTION
1.1.1
OVERVIEW
The OSD8816B series is a high-quality fiber optic digital video and data transmission system. The
system consists of the OSD8816BT and the OSD8816BR, which are designed to be used as a pair, and
provide one-way transmission of PAL, NTSC or SECAM video, plus full-duplex transmission of one
data channel.
The OSD8816BT accepts one analog composite video input signal along with one digital data input
signal. The video signal is converted to digital with 10-bit
the input signals. The resulting digital signal is multiplexed and transmitted as a digital bit-stream
through the fiber. The OSD8816BT also includes an optical receiver section that decodes the digital
signal transmitted by the OSD8816BR, to provide data output signals. Data can be TTL, RS232, RS485
or RS422 31kHz Manchester or Bi-phase. The OSD8816BT receiver provides adjustment free
operation over the full optical range of the unit.
The OSD8816BR incorporates a high performance optical digital receiver for incoming video and data
signals, and a transmitter that outputs a digital optical signal consisting of one data channel. The unit
provides a constant video output level which is independent of link loss, and data section of the
OSD8816BR is also adjustment free over all link lengths. Data signal interface levels are the same as
those of the OSD8816BT.
The OSD8816BT and OSD8816BR are available in two physical configurations: card or module. The
card versions are designed to fit the 3RU-high 19" OSD370N or OSD350N chassis, which allows
multiple OSD card products to be conveniently powered from and located in the one chassis. The
module case versions are intended for isolated use and require an external power source.
The OSD8816B system can be used with any standard singlemode or multimode optical fiber over a
single fiber for transmission and reception.
*1
Video resolution can be either 10-bit with reverse data only, or 9-bit with duplex data (i.e.
forward and reverse data). See section 1.6 for further details
1.1.2
APPLICATIONS
▲
High quality CCTV networks
requiring full duplex or reverse data
transmission between cameras and
their control center
1.1.3
FEATURES AND BENEFITS
One way optic transmission of PAL,
▲
NTSC or SECAM video plus either
both way or reverse transmission on
one data channel
Broadcast quality 10 bit video
▲
maintained over all link lengths.
Video bandwidth of 10MHz
▲
Remote control of Pan, Tilt and Zoom
▲
for video surveillance
PAGE 4
OSD8816B OPERATOR MANUAL
OPTICAL SYSTEMS DESIGN
*1
resolution so as to preserve the quality of
▲
Transportation communication
systems
Transmission of alarm and control
▲
signals from the camera site
Operates over singlemode or
▲
multimode fiber
Operating range of at least 3km on
▲
multimode fiber and 100km on
singlemode fiber, depending on
optical devices
Single fiber operation
▲
DOC ID: 10115503
Advertisement
Table of Contents
