Cisco Systems 15454 Switch User Manual


 
A-21
Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Appendix A Hardware Specifications
A.5 A.5.7 DS3-12E and DS3N-12E Card Specifications
Termination: Unbalanced coaxial cable
Input impedance: 75 ohms +/– 5 percent
Cable loss:
Maximum 137 m (450 ft): 734A, RG59, 728A
Maximum 24 m (79 ft): RG179
AIS: ITU-T G.704 compliant
Output
Bit rate: 44.736 Mbps +/– 20 ppm
Frame format: ITU-T G.704, ITU-T G.752/DS-3 ANSI T1.107-1988
Line code: B3ZS
Termination: Unbalanced coaxial cable
Output impedance: 75 ohms +/–5 percent
AIS: ITU-T G.704 compliant
Power level: –1.8 to +5.7 dBm
Note The power level is for a signal of all ones and is measured at a center frequency of
22.368 MHz (3 +/–1 kHz) bandwidth.)
Pulse shape: ITU-T G.703, Figure 14/ANSI T1.102-1988, Figure 8
Pulse amplitude: 0.36 to 0.85 V peak-to-peak
Loopback modes: Terminal and facility
Line build out: 0 to 225 feet (0 to 68.8 meters); 226 to 450 feet (68.9 to 137.2 meters)
Electrical interface connectors: SMB, BNC
Environmental
Overvoltage protection: As in ITU-T G.703 Annex B
Operating temperature: +23 to +113 degrees Fahrenheit (–5 to +45 degrees Celsius)
Operating humidity: 5 to 95 percent, noncondensing
Dimensions
Height: 12.650 in. (321.3 mm)
Width: 0.716 in. (18.2 mm)
Depth: 9.000 in. (228.6 mm)
Depth with backplane connector: 9.250 in. (235 mm)
Weight not including clam shell: 1.9 lb (0.8 kg)
A.5.7 DS3-12E and DS3N-12E Card Specifications
The DS3-12E and DS3N-12E cards have the following specifications:
Input
Bit rate: 44.736 Mbps +/– 20 ppm