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Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide
OL-17438-04
Chapter 2 Overview: Cisco XR 12000 Series Router Shared Port Adapters
2-Port Gigabit Ethernet SPA Overview
The valid configuration of the SFP ports for the 2-Port Gigabit Ethernet SPA (Version 2) is Port 0 (SFP)
and Port 1 (SFP), or any single port.
Note
The 2-Port Gigabit Ethernet SPA has two RJ-45 ports. However, these RJ-45 ports are not supported by
the Cisco XR 12000 Series Router.
2-Port Gigabit Ethernet SPA Cables and Connectors
The interface connectors on the 2-Port Gigabit Ethernet SPA are two individual fiber-optic receivers that
support SFP modules. Each port can send and receive traffic using the optical fiber connections.
SFP Module Connections
The small form-factor pluggable (SFP) module is an input/output (I/O) device that plugs into the Gigabit
Ethernet ports on the 2-Port Gigabit Ethernet SPA, linking the port with a fiber-optic network.
Note
The 2-Port Gigabit Ethernet SPA will only accept the SFP modules listed as supported in this document.
An SFP module check is run every time an SFP module is inserted into the 2-Port Gigabit Ethernet SPA
and only SFP modules that pass this check will be usable by the 2-Port Gigabit Ethernet SPA.
SFP modules exist for technologies other than Gigabit Ethernet and for products other than the 2-Port
Gigabit Ethernet SPA. However, the information in this document pertains only to SFP modules that plug
into the 2-Port Gigabit Ethernet SPA ports.
The SFP module has a receiver port (RX) and a transmitter port (TX) that compose one optical interface.
provide SFP module information and specifications.
Table 2-15
2-Port Gigabit Ethernet SPA (Version 2) LEDs
LED Label
Color
State
Meaning
A/L
Off
Off
Port is not enabled.
Green
On
Port is enabled by software and the link is up.
Amber
On
Port is enabled by software and the link is down.
STATUS
Off
Off
SPA power is off.
Green
On
SPA is ready and operational.
Amber
On
SPA power is on and good, and SPA is being configured.
Table 2-16
SFP Module Options
SFP Module
Product Number
SFP Module
Description
SFP-GE-S
Short wavelength
(1000BASE-SX)
Contains a Class 1 laser of 850 nm for
1000BASE-SX (short wavelength) applications.
SFP-GE-L
Long wavelength/long haul
(1000BASE-LX/LH)
Contains a Class 1 laser of 1310 nm for
1000BASE-LX/LH (long wavelength)
applications.
