Data Sheet

LTC 4628 and LTC 4629 Series – video/data
transmission
1 AutoDome Series Pan/Tilt/Zoom Camera
2 Bi-Phase Control Data Cable
3 Fiber Optic Transceiver
4 Fiber Optic Cable: Up to 4 km (2.5 miles) using 62.5/125 micron
Multimode Fiber Optic Cable
5 Allegiant Series Switcher/Controller, Divar Digital Video Recorder,
or System4 Series Multiplexer
6 IntuiKey Series Keyboard
7 Bi-Phase Control Data Cable
8 Video
LTC 4628 and LTC 4629 Series
Models
No.
Description Power Source
2
Requires
LTC 46
28/60
Video/Data
Transceiver
120-230 VAC,
50/60 Hz
LTC 4629 Series
Transceiver
LTC 46
28/00
Video/Data
Transceiver
Rack Module
LTC 4637 Rack LTC 4629 Series
Transceiver
LTC 46
29/60
Data/Video
Transceiver
120-230 VAC,
50/60 Hz
LTC 4628 Series
Transceiver
LTC 46
29/00
Data/Video
Transceiver
Rack Module
LTC 4637
Rack
LTC 4628 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 LTC 4628
(surface-mount versions only)
24 VAC C.T. ,
11–14 VDC @ 200 mA
Power Requirements LTC 4629
(surface-mount versions only)
12 VDC @ 200 mA
Number of Fibers One (1)
Optical Budget 14 dB
Maximum Distance 4.0 km (2.5 miles)
Technology Type AM Video modulation
Wavelength 850 nm / 1310 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
Video Bandwidth 5 Hz to 10 MHz
Differential Gain < 5%
Differential Phase < 5°
Tilt < 1%
Signal-to-Noise Ratio (SNR) > 55 dB @ 10 dB
attenuation
> 60 dB @ 7 dB
attenuation
Data Rate DC to 100 kbps (NRZ)
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 4671 Series
The LTC 4671 Series are Transceivers designed
especially for the transmission of RS-485 signals used
by system keyboards in the Allegiant Series of
switcher/controller systems, the Divar Series of digital
video recorders, and the System4 Series of
multiplexers. The unit contains both a transmitter and
a receiver operating in the 850 nm range to allow
bidirectional communication using two fibers between
the main control site and its remote keyboard.
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