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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Appendix A Hardware Specifications
A.5.2 E1-42 Card Specifications
• Dimensions
–
Height: 321.3 mm (12.650 in.)
–
Width: 18.2 mm (0.716 in.)
–
Depth: 228.6 mm (9.000 in.)
–
Depth with backplane connector: 235 mm (9.250 in.)
–
Weight not including clam shell: 0.8 kg (1.9 lb)
A.5.2 E1-42 Card Specifications
The E1-42 card has the following specifications:
• E1-42 input
–
Bit rate: 2.048 Mbps +/–50 ppm
–
Frame format: Unframed, ITU-T G.704 framed
–
Line code: HDB-3
–
Termination: Via FMEC E1-120NP, FMEC E1-120PROA, or FMEC E1-120PROB
–
Input impedance: 120 ohms balanced (75 ohms unbalanced with additional E1-75/120)
–
Cable loss: 0 to 6 dB at 1024 kHz (for cable length, see the specification of the cable that you
are using)
–
AIS: ITU-T G.704 compliant
• E1-42 output
–
Bit rate: 2.048 Mbps +/–50 ppm
–
Frame format: Unframed, ITU-T G.704 framed
–
Line code: HDB-3
–
Termination: Via FMEC E1-120NP, FMEC E1-120PROA, or FMEC E1-120PROB
–
Output impedance: 120 ohms balanced (75 ohms unbalanced with additional E1-75/120)
–
AIS: ITU-T G.704 compliant
–
Pulse shape: ITU-T G.703, Figure 15
–
Pulse amplitude: 3 V +/– 5% zero-peak at 120 ohms; 2.37 V +/–5% zero-peak at 75 ohms
–
Loopback modes: terminal and facility
• Environmental
–
Overvoltage protection: As in ITU-T G.703 Annex B
–
Operating temperature: –5 to +45 degrees Celsius (+23 to +113 degrees Fahrenheit)
–
Operating humidity: 5 to 95%, noncondensing
–
Power consumption: 38.10 W, 0.79 A at –48 V, 130.1 BTU/hr
• Dimensions
–
Height: 321.3 mm (12.650 in.)
–
Width: 18.2 mm (0.716 in.)
–
Depth: 228.6 mm (9.000 in.)