Use a single-mode (for intermediate-reach or long-reach configurations) or multimode optical fiber cable to
connect your router to a network or to connect two OC-3-equipped routers back-to-back.
Long-range SFP optical transceiver modules (for long-reach configurations) cannot be connected back-to-back
without using an attenuator between them.
Figure 37: Duplex Patch Cable with LC-Type Connectors
1-Port Clear Channel OC-12 ATM SPA Overview
The 1-Port Clear Channel OC-12 ATM SPA is a single-height ATM SPA that can be installed into one SIP
subslot. The OC-12 ATM SPA with small form-factor pluggable (SFP) optical transceiver modules provides
SONET and SDH network connectivity with a per-port bandwidth of 622.08 Mbps. For more information
about SPA bandwidth, see the “Bandwidth Oversubscription” section in this chapter.
The following sections describe the 1-Port Clear Channel OC-12 ATM SPA:
1-Port Clear Channel OC-12 ATM SPA LEDs
The 1-Port Clear Channel OC-12 ATM SPA has three types of LEDs. There are two LEDs for the port on the
SPA, and one STATUS LED, as shown in the following figure.
Figure 38: 1-Port Clear Channel OC-12 ATM SPA Faceplate
STATUS LED3C/A (Carrier/Alarm) LED1
A/L (Active Loopback) LED2
The 1-Port Clear Channel OC-12 ATM SPA LEDs are described in the following table.
Table 32: 1-Port Clear Channel OC-12 ATM SPA LEDs
MeaningStateColorLED Label
Port is not enabled by software.OffOffC/A
Port is enabled by software, and there is a valid SONET signal without any alarms.OnGreen
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
48
Overview: Cisco ASR 9000 Series Router Shared Port Adapters
1-Port Clear Channel OC-12 ATM SPA Overview
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