user manual

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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 4 Optical Cards
4.8.3 OC48 IR/STM16 SH AS 1310 Port-Level Indicators
4.8.3 OC48 IR/STM16 SH AS 1310 Port-Level Indicators
You can find the status of the OC48 IR/STM16 SH AS 1310 card ports using the LCD screen 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.
4.9 OC48 LR/STM16 LH AS 1550 Card
The OC48 LR/STM16 LH AS 1550 card provides one long-range, ITU-T G.707- and G.957-compliant,
SDH STM-16 port per card. The interface operates at 2.488 Gbps over a single-mode fiber span. The
card supports concatenated or nonconcatenated payloads at STM-1, STM-4, or STM-16 signal levels on
a per VC-4 basis. Figure 4-13 shows the OC48 LR/STM16 LH AS 1550 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,
MS-AIS, 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.
Table 4-9 OC48 IR/STM16 SH AS 1310 Card-Level Indicators (continued)
Card-Level LED Description