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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Appendix A Hardware Specifications
A.5.5 STM1E-12 Card Specifications
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Weight not including clam shell: 0.8 kg (1.9 lb)
A.5.5 STM1E-12 Card Specifications
The STM1E-12 card has the following specifications:
• STM1E-12 input
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Bit rate: 155.52 Mbps +/–5 ppm for STM-1
or 139.264 Mbps +/–15 ppm for E-4
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Line code: Coded mark inversion (CMI)
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E-4 (can be framed or unframed)
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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 12.7 dB at 78 MHz (for cable length, see the specification of the cable that
you are using)
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AIS: ITU-T G.704 compliant
• STM1E-12 output
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Bit rate: 155.52 Mbps +/–5 ppm for STM-1
or 139.264 Mbps +/–15 ppm for E-4
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Line code: CMI
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E-4 can be framed or unframed
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Termination: Unbalanced coaxial cable
–
Output impedance: 75 ohms +/–5%
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AIS: ITU-T G.704 compliant
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Pulse shape: ITU-T G.703, Figure 18 and 19 for E-4, Figure 22 and 23 for STM-1
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Pulse amplitude: 1 V +/– 0.1 V peak-to-peak
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Loopback modes: terminal and facility
• STM1E-12 electrical interface
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Connectors: 1.0/2.3 miniature coax connectors in the FMEC STM1E 1:1 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: 59.40 W, 1.24 A at –48 V, 202.8 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)