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Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Appendix A Hardware Specifications
A.5 A.5.7 DS3-12E and DS3N-12E Card Specifications
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Termination: Unbalanced coaxial cable
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Input impedance: 75 ohms +/– 5 percent
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Cable loss:
Maximum 137 m (450 ft): 734A, RG59, 728A
Maximum 24 m (79 ft): RG179
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AIS: ITU-T G.704 compliant
• Output
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Bit rate: 44.736 Mbps +/– 20 ppm
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Frame format: ITU-T G.704, ITU-T G.752/DS-3 ANSI T1.107-1988
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Line code: B3ZS
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Termination: Unbalanced coaxial cable
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Output impedance: 75 ohms +/–5 percent
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AIS: ITU-T G.704 compliant
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Power level: –1.8 to +5.7 dBm
Note The power level is for a signal of all ones and is measured at a center frequency of
22.368 MHz (3 +/–1 kHz) bandwidth.)
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Pulse shape: ITU-T G.703, Figure 14/ANSI T1.102-1988, Figure 8
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Pulse amplitude: 0.36 to 0.85 V peak-to-peak
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Loopback modes: Terminal and facility
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Line build out: 0 to 225 feet (0 to 68.8 meters); 226 to 450 feet (68.9 to 137.2 meters)
• Electrical interface connectors: SMB, BNC
• Environmental
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Overvoltage protection: As in ITU-T G.703 Annex B
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Operating temperature: +23 to +113 degrees Fahrenheit (–5 to +45 degrees Celsius)
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Operating humidity: 5 to 95 percent, noncondensing
• Dimensions
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Height: 12.650 in. (321.3 mm)
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Width: 0.716 in. (18.2 mm)
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Depth: 9.000 in. (228.6 mm)
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Depth with backplane connector: 9.250 in. (235 mm)
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Weight not including clam shell: 1.9 lb (0.8 kg)
A.5.7 DS3-12E and DS3N-12E Card Specifications
The DS3-12E and DS3N-12E cards have the following specifications:
• Input
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Bit rate: 44.736 Mbps +/– 20 ppm