Datasheet

444 | Switching and Control | Switching and Control Systems
Technical Specifications
LTC 8900 Series System Specifications
Capacities
Video Inputs
Standard 4096
Satellite Configuration 6144
Video Outputs 512
Keyboards 120
Alarm Inputs 1024
Receiver/Drivers
Standard 4096
Satellite Configuration 6144
Electrical
Input Voltage Level 0.5 Vp-p to 2 Vp-p
(composite negative sync)
Gain Unity ± 2%
(75 Ohm terminated)
Pulse/Bar Ratios
1
Min. Nom. Max.
94% 98% 106%
2T Pulse K Factor
1
Min. Nom. Max.
0.2% 2.5%
Bar Amplitude (IRE)
1
Min. Nom. Max.
96 98 104
Sync Amplitude (% Bar)
1
Min. Nom. Max.
36% 39% 44%
Field Time Waveform Distortion
1
2% maximum
Line Time Waveform Distortion
1
1% maximum
Short Time Waveform Distortion
1
2% maximum
Long Time Waveform Distortion
1
0.8% maximum
Video Bandwidth (-3 dB) 17 MHz
Frequency Response ± 0.5 dB to 11 MHz
Signal-to-Noise-Ratio
1
70 dB at 3.58 MHz unified un-
weighted minimum
Crosstalk (at 3.58 MHz) Typical: –65 dB,
Adjacent channel: –45 dB (typi-
cal)
Hum 60 dB below the composite
1 Vp-p video signal from 60 Hz to
6 MHz
Differential Gain
1
Min. Nom. Max.
0.6% 2%
Differential Phase
1
Min. Nom. Max.
0.6° 1.3°
Chrominance Luminance Gain Min. Nom. Max.
94% 100% 109%
Chrominance Luminance Delay
1
Min. Nom. Max.
–33 ns +3 ns +33 ns
Luminance Nonlinearity
1
Min. Nom. Max.
0.3% 4%
Switching Crosspoint matrix
DC Output 0 V
Transient Protection
(VIM Cards)
350 W Peak Pulse Power
(tp = 8/20 µs
1 Meets EIA/TIA - 250C Medium Haul Standard for 1024 cameras x 64 monitors.
Environmental
Temperature
Operating 4°C to 50°C (40°F to 122°F)
Storage –40°C to 60°C (–40°F to 140°F)
Altitude 4500 m (15,000 ft)
Humidity 0 to 95 % relative, non-condensing
Vibration 3 g swept sine wave, 15 Hz to 2000 Hz
Shock 50 g, 11 m/s, ½ sine wave
LTC 8904 CPU Equipment Bay
The LTC 8904/60 and LTC 8904/50 include the equipment rack,
LTC 8910/01 microprocessor module, LTC 8905/90 power supply, and
LTC 8917/00 relay module.
Electrical
Model No. Rated Voltage Voltage
Range
Nominal
Power
2
LTC 8904/60 120 VAC, 50/60 Hz 100 to 140 30 W
LTC 8904/50 220–240 VAC, 50/60 Hz 198 to 264 30 W
2 Power at rated voltage fully loaded.
Connectors
Controller Port 9-pin D-type RS-232 port for an external PC or com-
puting device (default = 115,200 baud)
Console 9-pin D-type RS-232 port for an external computer
or a computing device (default = 19,200 baud)
Alarm 9-pin D-type RS-232 port for an Allegiant alarm ac-
cessory unit (default = 19,200 baud)
Bi-Phase 9-pin D-type TTL level, high-speed control data out-
put (BiPhase) for interface to an Allegiant series sig-
nal distribution units (data clock rate = 31.25 kHz)
COM Ports Two 9-pin D-type RS-485 ports for an external Alle-
giant accessory use
Keyboards Eight (8), 6-pin RS-485 ports for an Allegiant key-
board use (default = 9600 baud)
LAN RJ-45 high-speed LAN port for interface to
LTC 8902 Series and LTC 8903 Series bays via
LTC 8946 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 7.2 kg (15.85 lb)
Construction Metal case with plastic panel
Finish Charcoal
Microprocessor Module (LTC 8910/01)
Dimensions
(D x H)
300 x 250 mm
(11.8 x 9.8 in.)
Weight 0.5 kg (1.1 lb)
Bosch Security Systems B.V. www.boschsecurity.com
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