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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
FMEC-E3/DS3 Card
3.12.1 FMEC-E1 Specifications
• FMEC-E1 Input
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Bit Rate: 2.048 MBits/s (Mbps) + 50 ppm
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Line Code: HDB-3
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Termination: Unbalanced coaxial cable
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Input Impedance: 75 Ω + 5%
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Cable Loss: up to 6 dB at 1024 kHz
• FMEC-E1 Output
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Bit Rate: 2.048 MBits/s (Mbps) + 50 ppm
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Line Code: HDB-3
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Termination: Unbalanced coaxial cable
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Output Impedance: 75 Ω + 5%
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Pulse Shape: ITU-T G.703 Figure 15 / Table 7
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Pulse Amplitude: ITU-T G.703 Figure 15 / Table 7
• FMEC-E1 Electrical Interface
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Connectors: 1.0/2.3 Miniature Coax connectors
• Environmental
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Operating Temperature: -5 to +45 degrees Celsius
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Operating Humidity: 5 to 95%, non-condensing
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Power Consumption: 0.00 W, 0.00 A (AMPS) at -48V, 0.0 BTU/hr
• Dimensions
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Height: 182 mm (7.165 in.)
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Width: 32 mm (1.25 in.)
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Depth: 92 mm (3.62 in.)
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Depth with backplane connector: 98 mm (3.87 in.)
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Weight not including clam shell: 0.3 kg (0.7 lb)
• Compliance
ONS15454 SDH cards, when installed in a system, comply with these standards:
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Safety: IEC 60950, EN 60950, UL 60950, CSA C22.2 No. 60950, TS 001, AS/NZS 3260
3.13 FMEC-E3/DS3 Card
The ONS 15454 SDH FMEC-E3/DS3 card provides front mount electrical connection for twelve
ITU-compliant, G.703 E-3 or DS-3 ports. With FMEC-E3/DS3, each interface of an E3-12 card operates
at 34.368 MBits/s (Mbps). Each interface of a DS3i-N-12 card operates at 44.736 MBits/s (Mbps) over
a 75Ω unbalanced coaxial 1.0/2.3 miniature coax connector. Figure 3-18 shows the FMEC-E3/DS3
faceplate and Figure 3-19 shows a block diagram of the card.
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