user manual

A-21
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Appendix A Hardware Specifications
A.5.12 E1-75/120 Impedance Conversion Panel Specifications
– Width: 32 mm (1.25 in.)
– Depth: 92 mm (3.62 in.)
– Depth with backplane connector: 98 mm (3.87 in.)
– Weight not including clam shell: 0.3 kg (0.7 lb)
A.5.12 E1-75/120 Impedance Conversion Panel Specifications
The FMEC E1-75/120 impedance conversion panel has the following specifications:
• E1-75/120 input
– Bit rate: 2.048 Mbps +/–50 ppm
– Line code: HDB-3
• E1-75/120 output
– Bit rate: 2.048 Mbps +/–50 ppm
– Line code: HDB-3
• E1-75/120 electrical interface
– Connectors:
1.0/2.3 miniature coax connectors on 75-ohm side
Molex 96-pin LFH connectors on 120-ohm side
– Impedance tolerance: +/–5%
• Environmental
– Operating temperature: –5 to +45 degrees Celsius (+23 to +113 degrees Fahrenheit)
– Operating humidity: 5 to 95%, noncondensing
– Power consumption: Not applicable; the E1-75/120 is a passive device.
• Dimensions
– Height: 75 mm (2.95 in.)
– Width: 535 mm (21.06 in.)
– Depth: 221 mm (8.7 in.)
– Weight: 2.15 kg (4.74 lb)
A.5.13 FMEC-E3/DS3 Card Specifications
The FMEC-E3/DS3 card has the following specifications:
• FMEC-E3/DS3 input (for E3 signals)
– Bit rate: 34.368 Mbps +/–20 ppm
– Line code: HDB-3
– Termination: Unbalanced coaxial cable
– Input impedance: 75 ohms +/–5%
– Cable loss: Up to 12 dB at 17184 kHz