LTC 8901 Series CPU Equipment Bay
The LTC 8901/60 and LTC 8901/50 include the equipment rack, dual
LTC 8910/01 microprocessor modules, dual LTC 8905/90 power
supplies, and one LTC 8917/00 relay module.
Electrical
Model No. Rated Voltage Voltage
Range
Nominal
Power
3
LTC
8901/60
120 VAC,
50/60 Hz
100 to
140
30 W
LTC
8901/50
220–240 VAC,
50/60 Hz
198 to
264
30 W
3 Power at rated voltage fully loaded.
Connectors
Controller Ports Two (2), RS-232 ports for an LTC 8943 PC
controller interface (default = 115,200 baud)
Console RS-232 port for an external computer or a
computing device (default = 19,200 baud)
Alarm RS-232 port for an Allegiant alarm accessory unit
(default = 19,200 baud)
Switch Ctrl Digital interface port for the LTC 8943 PC
controller
Bi-Phase TTL level, hi-speed control data output
(Bi-Phase) for interface to an Allegiant series
signal distribution units
(data clock rate = 31.25 kHz)
COM Ports Two (2), RS-485 port for an external Allegiant
accessory use
Keyboards Eight (8), 6-pin RS-485 ports for an Allegiant
keyboard use (default = 9600 baud)
LAN Two RJ-45 high-speed LAN ports for interface to
LTC 8902 Series and LTC 8903 Series bays via
LTC 8944 Series and LTC 8945 Series LAN
Switches
Components
Equipment Rack
Dimensions
(W x D x H)
EIA 48 cm (19 in.) rack,
440 x 394 x 86 mm (17.3 x 15.5 x 3.4 in.)
Weight 8 kg (17.6 lb)
Construction Metal case with plastic panel
Finish Charcoal
Microprocessor Modules (Two–LTC 8910/01)
Dimensions
(D x H)
300 x 250 mm
(11.8 x 9.8 in.)
Weight 0.5 kg (1.1 lb)
Power Supplies (Two–LTC 8905/90)
Relay Module (LTC 8917/00)
Dimensions
(D x H)
300 x 250 mm
(11.8 x 9.8 in.)
Front Panel Indicators
LTC 8901
Primary power
Primary fault
Back-up power
Back-up fault
Primary CPU in-use
Controller activity
Back-up CPU in-use
Auto-select mode
Primary CPU activity
Fault buzzer
Back-up CPU activity
LTC 8904
Power
CPU Activity
Rear Panel Indicators
Relay outputs
4
Primary CPU fault
Back-up power supply failure
Back-up CPU fault
Any failure
Primary power supply failure
4 Relay Contacts: 24 VAC, 40 V peak, 1 A.
LTC 8902 Series Monitor Output Bays
The LTC 8902/60 and LTC 8902/50 include the equipment rack,
LTC 8916/01 data receiver module, and LTC 8906 Series power
supply.
Electrical
Model No. Rated Voltage Voltage
Range
Nominal
Power
5
LTC 8902/60 120 VAC, 50/60 Hz 100 to 140 160 W
LTC 8902/50 220–240 VAC,
50/60 Hz
198 to 264 160 W
5 Power at rated voltage fully loaded.
Connectors
Video Outputs Four (4), 34-pin ribbon connectors used in
conjunction with the LTC 8808/00 video
interconnect panel
Video Bus
Connections
Sixteen (16), 34-pin ribbon connectors interconnect
with LTC 8903 Series Camera Input bays using
LTC 8809/00 ribbon cables
Console Port reserved for future use
COM 1 Port reserved for future use
COM 2 Port reserved for future use
7 | LTC 8900 Series Allegiant Matrix/Control Systems - Modular
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