Datasheet

A-14
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Appendix A Hardware Specifications
A.5 Electrical Card and FMEC Specifications
A.5 Electrical Card and FMEC Specifications
This section provides specifications for the electrical and Front Mount Electrical Connection (FMEC)
cards.
For compliance information, refer to the Cisco Optical Transport Products Safety and Compliance
Information document.
A.5.1 E1-N-14 Card Specifications
The E1-N-14 card has the following specifications:
• E1-N-14 input
– Bit rate: 2.048 Mbps +/–50 ppm
– Frame format: Unframed, ITU-T G.704 framed
– Line code: HDB-3
– Termination: Through FMEC-E1 (for 75 ohms unbalanced) or FMEC-DS1/E1 (for 120 ohms
balanced)
– Input impedance: 75 ohms unbalanced or 120 ohms balanced
– 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-N-14 output
– Bit rate: 2.048 Mbps +/–50 ppm
– Frame format: Unframed, ITU-T G.704 framed
– Line code: HDB-3
– Termination: Through FMEC-E1 (for 75 ohms unbalanced) or FMEC-DS1/E1 (for 120 ohms
balanced)
– Output impedance: 75 ohms unbalanced or 120 ohms balanced
– Alarm indication signal (AIS): ITU-T G.704 compliant
– Pulse shape: conforms to ITU-T Recommendation G.703 (1991), Section 6.2, Figure 15
– Pulse amplitude: 2.37 V +/– 5 percent zero-peak at 75 ohms; 3 V +/–5 percent zero-peak at
120 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 percent, noncondensing
– Power consumption: 24.00 W, 0.50 A at –48 V, 81.9 BTU/hr
• Dimensions
– Height: 321.3 mm (12.650 in.)
– Width: 18.2 mm (0.716 in.)