Oc48 Lr 1550 Card Description; Oc48 Lr 1550 Card-Level Indicators; Figure 13-16 Oc48 Lr 1550 Faceplate; Table 13-6 Oc48 Lr 1550 Card-Level Indicators - Cisco ONS 15327 User Documentation

Chapter 13 Card Reference

13.9.1 OC48 LR 1550 Card Description

The OC48 LR 1550 card provides one intermediate-reach, Telcordia-compliant, GR-253 SONET OC-48
interface per card. Each interface operates at 2488.320 Mbps over a single-mode fiber span and supports
VT payloads and non-concatenated or concatenated payloads for STS-1, STS-3c, STS-6c, STS-12c, or
STS-48c.
functionality.

Figure 13-16 OC48 LR 1550 faceplate

You can install the OC48 LR 1550 card in any ONS 15327 high-speed card slot and provision the card
as a drop or span card in a two-fiber BLSR, UPSR, or in an ADM (linear) configuration.
The OC48 LR 1550 port features a 1550 nm laser and contains a transmit and receive connector (labeled)
on the card faceplate. The card uses SC connectors, and it supports 1+1 unidirectional and bidirectional
protection switching.
The OC48 LR 1550 detects LOS, LOF, LOP, AIS-L, and RDI-L conditions. See
Troubleshooting"

13.9.2 OC48 LR 1550 Card-Level Indicators

The OC48 LR 1550 card has three card-level LED indicators

Table 13-6 OC48 LR 1550 Card-Level Indicators

Card-Level Indicators
Red FAIL LED
Green ACT LED
Amber SF LED
June 2002
Figure 13-16 shows the OC48 LR 1550 faceplate and
Tx Rx
for a description of these conditions. The card also counts section and line BIT errors.
Description
The red FAIL LED indicates that the card's processor is not ready. Replace
the card if the red FAIL LED persists.
The green ACT LED indicates that the OC48 LR 1550 card is carrying traffic
or is traffic-ready.
The amber SF LED indicates a signal failure or condition such as LOS, LOF
or high BERs on the card's port. The amber SF LED also illuminates when
the transmit and receive fibers are incorrectly connected. When the fibers are
properly connected, the light turns off.
Figure 13-17
FAIL
ACT
SF
(Table 13-6).
Cisco ONS 15327 User Documentation, R3.3
OC48 LR 1550 Card
diagrams the card's
Chapter 14, "Alarm
13-21