Datasheet

Table Of Contents
4-12
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 4 Optical Cards
4.5.1 OC12 LR/STM4 LH 1310 Card-Level Indicators
4.5.1 OC12 LR/STM4 LH 1310 Card-Level Indicators
Table 4-6 describes the three card-level LED indicators on the OC12 LR/STM4 LH 1310 card.
4.5.2 OC12 LR/STM4 LH 1310 Port-Level Indicators
You can find the status of the OC12 LR/STM4 LH 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.
4.6 OC12 LR/STM4 LH 1550 Card
Note For specifications, see the A.6.5 OC12 LR/STM4 LH 1550 Card Specifications” section on page A-32.
The OC12 LR/STM4 LH 1550 card provides one long-range, ITU-T G.707- and G.957-compliant, SDH
STM-4 port per card. The interface operates at 622.08 Mbps over a single-mode fiber span. The card
supports concatenated or nonconcatenated payloads on a per VC-4 basis. Figure 4-5 shows the OC12
LR/STM4 LH 1550 faceplate.
Warning
The laser is on when the optical card is booted. The port does not have to be in service for the laser
to be on.
Table 4-6 OC12 LR/STM4 LH 1310 Card-Level Indicators
Card-Level LED Description
Red FAIL LED The red FAIL LED indicates that the card processor is not ready. The FAIL
LED is on during reset and flashes during the boot process. Replace the card
if the red FAIL LED persists.
Green/Amber ACT LED The green ACT LED indicates that the card is operational and 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 (MS-SPRing).
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 card 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.