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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
E3-12 Card
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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
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Operating Humidity: 5 to 95%, non-condensing
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Power Consumption: 12.60 W, 0.26 A (AMPS) at -48V, 43.0 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: 0.8 kg (1.9 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
3.9 E3-12 Card
The twelve-port ONS 15454 SDH E3-12 card provides twelve ITU-compliant, G.703 E-3 ports per card.
Each interface operates at 34.368 MBits/s (Mbps) over a 75Ω coaxial cable (with FMEC-E3/DS3). The
E3-12 card operates as a working or protect card in 1:1 protection schemes and as a working card in 1:N
protection schemes. Figure 3-11 shows the E3-12 faceplates, and Figure 3-12 shows a block diagram of
the card.
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