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Overview: Cisco ASR 9000 Series Router Shared Port Adapters
LED Label
STATUS
1-Port and 3-Port Clear Channel OC-3 ATM SPA Interface Specifications
The physical layer interface for the 1-Port and 3-Port Clear Channel OC-3 ATM SPA is Optical Carrier-3
(OC-3), and the data link layer is designed to comply with ATM specifications. The 1-Port and 3-Port Clear
Channel OC-3 ATM SPA provides up to one and three 155-Mbps OC-3 network interfaces, respectively, for
all supported platforms.
Each SPA port accepts an SFP module with a duplex LC-type receptacle that allows connection to single-mode
or multimode optical fiber.
1-Port and 3-Port Clear Channel OC-3 ATM SPA Cables and Connectors
The 1-Port and 3-Port Clear Channel OC-3 ATM SPA uses a small form-factor pluggable (SFP) optical
transceiver module installed in each port for SONET and SDH single-mode and multimode optical fiber
connection.
Figure 36: SFP Optics Module
The SFP optical transceiver modules used with the 1-Port and 3-Port Clear Channel OC-3 ATM SPA provide
the following optical fiber options:
• Multimode—155-Mbps, OC-3 optical fiber (SONET STS-3c or SDH STM-1)
Use a multimode optical fiber that has a core/cladding diameter of 62.5/125 microns.
• Single-mode—155-Mbps, OC-3 optical fiber (SONET STS-3c or SDH STM-1)
Use a single-mode optical fiber that has a modal-field diameter of 8.7 ± 0.5 microns. (Nominal diameter is
approximately 10/125 microns.)
For single-mode and multimode optical fiber connections, you can use either a duplex LC-type cable or two
simplex LC-type cables, one for transmit (TX) and one for receive (RX).
Color
State
Meaning
Amber
On
Port is enabled by software, and loopback is on.
Off
Off
SPA power is off.
Amber
On
SPA power is on and good, and SPA is being configured.
Green
On
SPA is ready and operational.
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
1-Port and 3-Port Clear Channel OC-3 ATM SPA Interface Specifications
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