LTC 4629-50
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CCTV | LTC 4600 and 4700 Series Fiber Optics
The Bosch Fiber Optic Series are transmission products
that provide efficient, high quality video and data
transmission via fiber optic cable. Fiber optic signals are
immune to ground loops, radio frequency interference
(RFI), electromagnetic interference (EMI), and cross talk
because the video carrier is infrared light and is
transmitted through a nonconductive fiber optic cable.
Interference-free operation ensures reliable service. Unlike
microwave, wire, and coaxial cable transmission systems,
fiber optic transmission is difficult, if not impossible to
tap. And, since fiber optic cable is nonconductive and
does not radiate a signal, it is difficult to detect and
locate. These compact devices are available in a surface
mount enclosure or in a modular style package that can be
rack-mounted using an optional EIA 48 cm (19 in.)
compatible rack unit.
Model Summary
Model No. Description/Use
LTC 4641, LTC 4642 Series Single-channel Video Transmissions
LTC 4744, LTC 4745 Series 4-Channel Video Transmissions
LTC 4628, LTC 4629 Series Video/Bi-Phase Data Transmissions
LTC 4671 Series RS-485 Allegiant/ Divar/System4 Key-
board Data Transmissions
LTC 4651 Series RS-232/ Bi-Phase Data Transmissions
LTC 4637 Series Card Cage Enclosure for Rack-mount
Models
Functions
Compatibility
Bosch Product Bosch Fiber Optics Series
AutoDome with VG4-SFIBER-MM LTC 4629 Series
Unity Pack Series KBE-xxxx-xxF LTC 4642 Series
IntuiKey Series Keyboards LTC 4671 Series
LTC 5136 Controller LTC 4651 Series
Certifications and Approvals
Electromagnetic
Compatibility (EMC)
Complies with FCC Part 15, ICES-003
and CE regulations
Product Safety Complies with CE regulations, UL, CSA,
EN and IEC Standards
Laser Diode Models Comply with FDA performance Standard
for Laser Products, Title 21; Code of Fed-
eral Regulations Subchapter J
LTC 4600 and 4700 Series Fiber Optics
▶
Video and data models available
▶
No adjustments required
▶
Long distance–high security
▶
Surface-mount or rack-mount units
▶
Video models support NTSC, PAL, and SECAM
standards
▶
Wide operating temperature range
▶
Data communication link supports keyboards used
with Allegiant Series of Switcher/Control Systems,
Divar Series of Digital Video Recorders, and System4
Series of Multiplexers
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2 | LTC 4600 and 4700 Series Fiber Optics
Installation/Configuration Notes
LTC 4641 and LTC 4642 Series
The LTC 4641 Series Transmitters and LTC 4642 Series
Receivers are designed for transmission of CCTV analog
video signals. Efficient installation is assured because
there are no user adjustments required. The wide
bandwidth transmission capability of these units enables
clear, sharp black and white or color pictures to be
transmitted over long distances. The compact
transmitters are small enough to be connected directly to
a camera’s BNC connector, thereby simplifying
installation.
LTC 4641 and LTC 4642 Series video transmission
1 Camera
2 Bosch KBE-xxxx-xxF pre-packaged camera
3 Coax Cable
4 Fiber Optic Video Transmitter
5 Fiber Optic Cable: Up to 4 km (2.5 miles) using 62.5/125 micron
6 Fiber Optic Video Receiver
LTC 4641 and LTC 4642 Series
Models No. Description Power
Source
2
Requires
LTC 4641/60 Mini Video Trans-
mitter
120 VAC,
50/60 Hz
LTC 4642 Series
Receiver
LTC 4641/50 Mini Video Trans-
mitter
230 VAC,
50/60 Hz
LTC 4642 Series Re-
ceiver
LTC 4642/60 Video
Receiver
120 VAC,
50/60 Hz
LTC 4641 Series
Transmitter
LTC 4642/50 Video
Receiver
230 VAC,
50/60 Hz
LTC 4641 Series
Transmitter
LTC 4642/00 Video
Receiver, Rack
Module
LTC 4637
Rack
LTC 4641 Series
Transmitter
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 Transmitter
(surface-mount versions only)
9–12 VDC @ 150 mA;
10–14 VAC @ 200 mA
Power Requirements Receiver (sur-
face-mount versions only)
12 VDC @ 150 mA
Number of Fibers One (1)
Optical Budget 14 dB
Maximum Distance 4 km (2.5 miles)
Wavelength 850 nm
Optical Emitter LED
Transmitter Output Power 25 uW (–16 dBm)
Technology Type AM modulation, with AGC
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
Shipping Weight < 0.9 kg (2 lb)
MTBF > 100,000 hours
Dimensions
Transmitter (L x W x H)
(surface-mount version)
6.4 x 4.1 x 2.5 cm
(2.5 x 1.6 x 1.0 in.)
Receiver (L x W x H)
(surface-mount version)
10.7 x 8.9 x 2.5 cm
(4.2 x 3.5 x 1.0 in.)
LTC 4600 and 4700 Series Fiber Optics | 3
LTC 4744 and LTC 4745 Series
The LTC 4744 Transmitter and LTC 4745 Receiver are
designed for the transmission of up to 4 CCTV analog
video signals using one multimode fiber cable. This link
operates in the 1310 nm range and incorporates 8-bit
video encoding exceeding the requirements of EIA
RS-250C for Medium Haul video transmissions. Integral
LED status indicators provide an indication of operating
parameters.
LTC 4744 and LTC 4745 Series – 4 channel video
transmission
1 Camera
2 Coax Cable
3 Fiber Optic Video Transmitter
4 Fiber Optic Cable: Up to 3 km (1.9 miles) using 62.5/125 micron Mul-
timode Fiber Optic Cable
5 Fiber Optic Video Receiver
6 Video Quad Unit
LTC 4744 and LTC 4745 Series
Models No. Description
Power Source
2
Requires
LTC 4744/60 4-ch. Video
Transmitter
120 VAC,
50/60 Hz
LTC 4745 Series
Receiver
LTC 4744/50 4-ch. Video
Transmitter
230 VAC,
50/60 Hz
LTC 4745 Series
Receiver
LTC 4744/00 4-ch. Video
Transmitter
Rack Module
LTC 4637
Rack
LTC 4745 Series
Receiver
LTC 4745/60 4-ch. Video
Receiver
120 VAC,
50/60 Hz
LTC 4744 Series
Transmitter
LTC 4745/50 4-ch. Video
Receiver
230 VAC,
50/60 Hz
LTC 4744 Series
Transmitter
Models No. Description
Power Source
2
Requires
LTC 4745/00 4-ch. Video
Receiver
Rack Module
LTC 4637
Rack
LTC 4744 Series
Transmitter
2 Appropriate external power packs supplied with surface-mount models or power provided
by
LTC4637 rack unit for rack-mount models.
Specifications
Power Requirements Transmitter
and Receiver (surface-mount
versions only)
+12 VDC @ 500 mA
Number of Fibers One (1)
Optical Budget 17 dB
Maximum Distance 3 km (1.9 miles)
Wavelength 1310 nm
Optical Emitter Laser diode
Technology Type 8-Bit digital video encoding
Rack Slots Required when used
with LTC 4637 Rack
Two (2), rack-mount version only
Video Bandwidth 10 Hz to 6.5 MHz
Differential Gain < 2%
Differential Phase < 0.7°
Tilt < 1%
Signal-to-Noise Ratio (SNR) 60 dB @ maximum optical loss budget
Shipping Weight < 0.9 kg (2 lb)
MTBF > 100,000 hours
Dimensions
Transmitter (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.)
Receiver (L x W x H)
(surface-mount versions)
17.8 x 12.5 x 5.0 cm
(7.0 x 4.9 x 2.0 in.)
LTC 4628 and LTC 4629 Series
The LTC 4628 and LTC 4629 are a bidirectional
transmission system designed to implement a complete
CCTV system using a single optical fiber cable. This
system independently transmits an analog video signal
from the camera location to the controller location, while
simultaneously transmitting Bosch Bi-Phase control code
from the controller location to the camera location. The
video channel is compatible with monochrome or color
cameras. The data channel is compatible with control
systems that utilize Bosch Bi-Phase, simplex RS-232, or
RS-422 signals. Both units incorporate LED indicators to
provide quick visual indication of the module
performance.
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