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BOSCH
LTC 4671 Series – keyboard data transmission
1 Allegiant Series Switcher/Controller, Divar Digital Video Recorder,
or System4 Series Multiplexer
2 Separate Video Signal Transmission Link
3 Fiber Optic Data Transceiver
4 Up to 4 km (2.5 miles) using 62.5/125 micron Multimode Fiber
Optic Cables
5 Keyboard Data
6 IntuiKey Series Keyboard
LTC 4671 Series
Models
No.
Description Power Source
2
Requires
LTC 46
71/60
RS-485
Transceiver
120-230 VAC,
50/60 Hz
LTC 4671 Series
Transceiver
LTC 46
71/00
RS-485
Transceiver
Rack Module
LTC 4637 Rack LTC 4671 Series
Transceiver
2 Appropriate external power pack supplied with surface-mount models or power provided by LTC 4637 rack unit for
rack-mount models.
Specifications
Power Requirements (surface-mount
versions only)
12 VDC @ 200 mA
Number of Fibers Two (2)
Optical Budget 14 dB
Maximum Distance 4.0 km (2.5 miles)
Wavelength 850 nm
Optical Emitter LED
Transmitter Output Power 25 uW (–16 dBm)
Rack Slots Required (when used with
LTC 4637 Rack)
One (1), rack-mount
version only
Data Rate DC to 150 kbps
Shipping Weight < 0.9 kg (2 lb)
MTBF > 100,000 hours
Dimensions
L x W x H (surface-mount versions) 17.8 x 12.5 x 2.5 cm
(7.0 x 4.9 x 1.0 in.)
LTC 4651 Series
The LTC 4651 Transceivers are designed especially for
the transmission of Bosch Bi-Phase control code
signals used in the Allegiant Series of switcher/
controllers, various DVRs, multiplexers, and other
camera control systems. They are also compatible with
Manchester code and standard RS-232 signals. These
units operate in the 850 nm range and contain a
removable screw terminal type connector that allows
easy connection to the shielded twisted pair cable
carrying the control signal. These units can also be
used as an RS-232C transceiver that is compatible
with EIA Standard RS-232C levels. The system is
suitable for simplex asynchronous data transmissions
using one fiber, or full duplex asynchronous data
transmissions using two fibers up to 64 kbaud.
LTC 4651 Series – RS232 data transmission
1 AutoDome Series Pan/Tilt/Zoom Camera
2 Separate Video Signal Transmission Link
3 Bi-Phase Control Data Cable
4 Fiber Optic Data transceiver
5 Up to 3.5 km (2 miles) using 62.5/125 micron Multimode Fiber
Optic Cable
6 Controller Junction Box
7 Bi-Phase Control Data Cable
8 Data
5 | LTC 4600 and 4700 Series Fiber Optics
(101 Seiten)
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