Cisco Systems 15454 SDH 4.10 OC48 ELR/STM16 EH 100 GHz Cards

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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter4 Optical Cards
4.9.3 OC48 LR/STM16 LH AS 1550 Port-Level Indicators
4.9.3 OC48 LR/STM16 LH AS 1550 Port-Level Indicators
You can find the status of the OC48 LR/STM16 LH AS 1550 card ports using the LCD scr een on the
ONS 15454 SDH fan-tray assembly. Use the LCD to view the status of any port or card slot ; the screen
displays the number and severity of alarms for a given port or slot. Refer to the Cisco ONS 15454 SDH
Troubleshooting Guide for a complete description of the alarm messages.
4.10 OC48 ELR/STM16 EH 100 GHz Cards
Eighteen distinct STM-16 ITU 100-GHz DWDM cards comprise the ONS 15454 SDH DWDM channel
plan. This plan contains every second wavelength in the ITU grid for 100-GHz-spaced DWDM. Though
the ONS 15454 SDH only uses 200-GHz spacing, the cards work in 100-GHz-spaced nodes, as well.
Each OC48 ELR/STM16 EH 100 GHz card provides one SDH STM-16 port compliant with
ITU-T G.692, ITU-T G.707, ITU-T G.957, and ITU -T G.958. The interface operates at 2.488 Gbps over
a single-mode fiber span. Each card supports concatenated or nonconcatenated payloads at STM-1,
STM-4, or STM-16 signal levels on a per VC-4 basis. Figure 4-15 shows the
OC48 ELR/STM16 EH 100 GHz faceplate.
Green/Amber ACT LED The green ACT LED indicates that the card is carrying traffic or is
traffic-ready. The amber ACT LED indicates that the card is in standby mode
or is part of an active ring switch (BLSR).
Amber SF LED The amber SF LED indicates a signal failure or condition such as LOS, LOF,
or high BERs on one or more of the card’s ports. The amber SF LED is also
on if the transmit and receive fibers are incorrectly connected. If the fibers
are properly connected and the link is working, the light turns off.
Table4-10 OC48 LR/STM16 LH AS 1550 Card-Level Indicators (continued)
Card-Level LED Description