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A-14
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Appendix A Hardware Specifications
A.5.3 E3-12 Card Specifications
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Depth with backplane connector: 235 mm (9.250 in.)
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Weight not including clam shell: 0.8 kg (1.9 lb)
A.5.3 E3-12 Card Specifications
The E3-12 card has the following specifications:
• E3-12 input
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Bit rate: 34.368 Mbps +/–20 ppm
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Line code: HDB-3
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Termination: Unbalanced coaxial cable
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Input impedance: 75 ohms +/–5%
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Cable loss: Up to 12 dB at 17184 kHz (for cable length, see the specification of the cable that
you are using)
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AIS: ITU-T G.704 compliant
• E3-12 output
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Bit rate: 34.368 Mbps +/– 20 ppm
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Line code: HDB-3
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Termination: Unbalanced coaxial cable
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Output impedance: 75 ohms +/–5%
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AIS: ITU-T G.704 compliant
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Power level: –1.8 to +5.7 dBm
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Pulse shape: ITU-T G.703, Figure 17
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Pulse amplitude: 0.36 to 0.85 V peak-to-peak
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Loopback modes: terminal and facility
• E3-12 electrical interface
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Connectors: 1.0/2.3 miniature coax connectors in the FMEC-E3/DS3 card
• Environmental
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Overvoltage protection: As in ITU-T G.703 Annex B
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Operating temperature: –5 to +45 degrees Celsius (+23 to +113 degrees Fahrenheit)
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Operating humidity: 5 to 95%, noncondensing
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Power consumption: 38.20 W, 0.80 A at –48 V, 130.4 BTU/hr
• Dimensions
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Height: 321.3 mm (12.650 in.)
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Width: 18.2 mm (0.716 in.)
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Depth: 228.6 mm (9.000 in.)
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Depth with backplane connector: 235 mm (9.250 in.)
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Weight not including clam shell: 0.7 kg (1.7 lb)