A-21
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
AppendixA Hardware Spec ifications
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