A-18
Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Appendix A Hardware Specifications
A.5 A.5.4 DS3/EC1-48 Card Specifications
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Bit rate: 1.544 Mbps ± 32 ppm (DS-1); 2.048 Mbps ±50ppm (E1)
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Frame format: Off, SF (D4), ESF (DS-1); E1 multiframe, E1 CRC multiframe, and
unframed (ITU) (E1)
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Line code: AMI, B8ZS (DS-1); HDB3 (E1)
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Termination: Balanced, twisted pair, #22/24 AWG
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Input impedance: 100 ohms +/– 5 percent (DS1); 120 ohms =/–5% (E1)
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Cable loss: Max 655 feet ABAM #22/24 AWG (DS1); Compliant per ITU-T G.703 (E1)
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AIS: TR-TSY-000191 compliant
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Power level: 12.6 to 17.9 dBm centered at 772 KHz
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Pulse shape: Telcordia GR-499-CORE Figure 9-5 (DS-1); ITU-T G.703, Figure 15 (E1)
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Pulse amplitude: 2.4 to 3.6 V peak (DS-1); 2.7 to 3.3 V peak (E1))
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Loopback modes: Terminal and facility
• Electrical interface: SCSI (UBIC) connectors. UBIC-H: DS-1 and E1; UBIC-V: DS-1 only.
• Surge protection: Telcordia GR-1089
• Operating temperature
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I-Temp (15454-DS1E1-56):–40 to 149 degrees Fahrenheit (–40 to +65 degrees Celsius)
Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card
without this symbol is C-Temp compliant.
• 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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Card weight: 2.0 lb (0.9 kg)
A.5.4 DS3/EC1-48 Card Specifications
The DS3/EC1-48 card has the following specifications:
• Input
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Bit rate: 44.736 Mbps +/– 20 ppm
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Frame format: 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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Input impedance: 75 ohms +/–5 percent
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Cable loss: Max 450 feet with 734A or 728A, Max 79 feet with RG-179
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AIS: TR-TSY-000191 compliant
• Output
