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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
E1-N-14 Card
• Compliance
ONS15454 SDH cards, when installed in a system, comply with these standards:
–
Safety: IEC 60950, EN 60950, UL 60950, CSA C22.2 No. 60950, TS 001, AS/NZS 3260
3.8 E1-N-14 Card
The fourteen-port ONS 15454 SDH E1-N-14 card provides fourteen ITU-compliant, G.703 E-1 ports.
Each port of the E1-N-14 card operates at 2.048 MBits/s (Mbps) over a 120Ω twisted-pair copper cable
(with FMEC-DS1/E1) or over a 75Ω unbalanced coaxial cable (with FMEC-E1). Figure 3-9 shows the
E1-N-14 faceplate and Figure 3-10 shows a block diagram of the card.
Figure 3-9 E1-N-14 faceplate
Each E1-N-14 port features ITU-T G.703 compliant level outputs and inputs supporting cable losses of
up to 6 dB at 1024 kHz. The E1-N-14 card supports 1:N (N ≤ 4) protection. You can also provision the
E1-N-14 to monitor line and frame errors in both directions.
FAIL
ACT/STBY
SF
E1-N
14
33678 12931
63104
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