Datasheet

A-24
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Appendix A Hardware Specifications
A.5.13 FMEC-E3/DS3 Specifications
A.5.13 FMEC-E3/DS3 Specifications
The FMEC-E3/DS3 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 percent
– Cable loss: Up to 12 dB at 17184 kHz
• FMEC-E3/DS3 output (for E3 signals)
– Bit rate: 34.368 Mbps +/–20 ppm
– Line code: HDB-3
– Termination: Unbalanced coaxial cable
– Output impedance: 75 ohms +/–5 percent
– Pulse shape: ITU-T G.703, Figure 17
– Pulse amplitude: ITU-T G.703, Figure 17 and Table 9
• FMEC-E3/DS3 Input (for DS3 signals)
– Bit rate: 44.736 Mbps +/– 20 ppm
– Line code: B3ZS
– Termination: Unbalanced coaxial cable
– Input impedance: 75 ohms +/–5 percent
– Cable loss:
Maximum 137 m (450 ft): 734A, RG59, 728A
Max 24 m (79 ft): RG179
• FMEC-E3/DS3 output (for DS3 signals)
– Bit rate: 44.736 Mbps +/–20 ppm
– Line code: B3ZS
– Termination: Unbalanced coaxial cable
– Output impedance: 75 ohms +/–5 percent
– AIS: TR-TSY-000191 compliant
– Power level: ITU-T G.703, Table 6; –1.8 to +5.7 dBm
– Pulse shape: ITU-T G.703, Table 6 and Figure 14; ANSI T1.102-1988, Figure 8
– Pulse amplitude: ITU-T G.703, Table 6; 0.36 to 0.85 V peak-to-peak
– Line build out: 0 to 68.58 m (0 to 225 ft.); 68.88 to 137.16 m (226 to 450 ft.)
• FMEC-E3/DS3 electrical interface
– Connectors: 1.0/2.3 miniature coax connectors
• Environmental
– Operating temperature: –5 to +45 degrees Celsius (+23 to +113 degrees Fahrenheit)