9 Controller
LTC 4651 Series
Models
No.
Description Power Source
2
Requires
LTC 46
51/60
Bi-Phase/RS-232
Transceiver
120-230 VAC,
50/60 Hz
LTC 4651
Series
Transceiver
LTC 46
51/00
Bi-Phase/RS-232
Transceiver, Rack
Module
LTC 4637 Rack LTC 4651
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 @ 150 mA
Number of Fibers One (1) for Bi-Phase and
simplex RS-232
transmissions;
Two (2) for duplex
RS-232 transmissions
Optical Budget 14 dB
Maximum Distance 3.5 km (2 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 1.5 Mbps (NRZ)
Shipping Weight < 0.9 kg (2 lb)
MTBF > 100,000 hours
Dimensions
L x W x H (surface-mount versions) 10.7 x 8.9 x 2.5 cm
(4.2 x 3.5 x 1.0 in.)
LTC 4637 Series Rack
The LTC 4637 Series Rack Units provide the option to
rack-mount LTC 4600 Series Fiber Optic Modules in a
standard EIA 48 cm (19 in.) rack. The unit incorporates
an integral power supply that supplies power to all
modules installed in the rack-mount unit. The supply
also utilizes a standard IEC AC power connector for
easy power cord replacement or exchange with
various worldwide AC power plug configurations.
Modules installed in the rack-mount unit can be hot-
swapped, so it is not necessary to power down the
rack when removing or replacing modules. The integral
power supply incorporates an automatic electronic
current limiting feature for each individual rack-mount
slot. This design eliminates the possibility of a single-
point failure causing a complete shut down of the
entire rack. The current limiting function is also self-
resetting, should the fault or overload be of a
temporary or intermittent nature.
LTC 4637 Series Rack
Models No. Input
Voltage
Voltage
Range
Output
Voltage
Max
Power
3
LTC 4637/60 120 VAC,
50/60 Hz
108 to 132 20 VAC 80 W
LTC 4637/50 230 VAC,
50/60 Hz
198 to 264 20 VAC 80 W
3 Maximum power dissipation (fully loaded).
Specifications
Construction Modular style aluminum enclosure,
with detachable IEC type AC power
connector
Number of Slots 14
Indicators Power supply pilot lamp
Power Supplied to Modules 20 VAC, Center tapped @ 4.0 A
Fusing One (1) slow-blow for rack power
supply; modules individually
electronically fused
Connectors AC line cord; 3-terminal adaptor
sockets, per slot
Shipping Weight < 2.15 kg (< 5 lb)
Dimensions
L x W x H 48.3 x 17.8 x 13.3 cm
(19.0 x 7.0 x 5.25 in.)
6 | LTC 4600 and 4700 Series Fiber Optics
(101 Seiten)
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