Oc12 Lr 1550 Card; Oc12 Lr 1550 Card Description; Oc12 Lr 1550 Card-Level Indicators; Figure 13-12 Oc12 Lr 1550 Card Faceplate - Cisco ONS 15327 User Documentation

OC12 LR 1550 Card

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13.7 OC12 LR 1550 Card
This section describes the features and functions of the OC12 LR 1550 card. Refer to this section for
general information about the OC12 LR 1550 card.

13.7.1 OC12 LR 1550 Card Description

The OC12 LR 1550 card provides one long-reach, Telcordia-compliant, GR-253 SONET OC-12
interface per card. The interface operates at 622.08 Mbps over a single-mode fiber span and supports VT
payloads and non-concatenated or concatenated payloads for STS-1, STS-3c, STS-6c, or STS-12c.
Figure 13-12

Figure 13-12 OC12 LR 1550 card faceplate

You can install the OC12 LR 1550 card in any ONS 15327 high-speed card slot. You can provision the
OC12 LR 1550 as part of a UPSR if desired. In ADM/TM configurations, you can provision the card as
either an access tributary or a transport span-side interface.
The OC-12 interface features a 1550 nm laser and contains a transmit (Tx) and receive (Rx) connector
(labeled) on the card faceplate. The OC12 LR 1550 uses SC connectors. The OC12 LR 1550 card
supports 1+1 unidirectional protection and provisionable bidirectional switching.
The OC12 LR 1550 detects loss of signal (LOS), loss of frame (LOF), and loss of pointer (LOP), and
line alarm indication signal (AIS-L) conditions (refer to
complete description of alarm conditions). The OC12 LR 1550 counts path and line BIT errors.
The OC12 LR 1550 extracts the K1 and K2 bytes from the SONET overhead to perform an appropriate
protection switch. The DCC bytes are forwarded to the DCC-terminating XTC.

13.7.2 OC12 LR 1550 Card-Level Indicators

The OC12 LR 1550 card has three card-level LED indicators
Cisco ONS 15327 User Documentation, R3.3
13-16
Eye safety compliance: Class I
–
– Operating Temperature: -40 to +65 degrees Celsius
Operating Humidity: 5 - 95%, non-condensing
–
Power Consumption: 14 W, .29 AMPS, 48 BTU/Hr
–
Dimensions
Height: 1.080 in.
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Width: 4.280 in.
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Depth: 9.172 in.
–
shows the OC12 LR 1550 faceplate and
Tx
Figure 13-13
FAIL
Rx
ACT
SF
Chapter 13
diagrams the card's functionality.
Chapter 14, "Alarm Troubleshooting"
(Table 13-4).
Card Reference
for a
June 2002