Cisco 7600 SIP 200 - SPA Interface Processor 200 Hardware Installation Manual page 105

Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters
2-Port Gigabit Synchronous Ethernet SPA LEDs
The 2-Port Gigabit Synchronous Ethernet SPA is a half-height SPA with these LEDs:
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•
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Table 3-33
Table 3-33
LED Label
SPA status LED Off
Line Status LED Off
Debug LED
Figure 3-48 2-Port Gigabit Synchronous Ethernet SPA Faceplate
2-Port Gigabit Synchronous Ethernet SPA Interface Specifications
The 2-Port Gigabit Synchronous Ethernet SPA is compatible with the 2-Port Gigabit Ethernet SPA on
all platforms and provides additional services of clock frequency and time of day synchronization.
The2-Port Gigabit Synchronous Ethernet SPA uses new technologies such as Synchronous Ethernet
(SyncE), ESMC, and IEEE1588v2.
However, the 2-Port Gigabit Synchronous Ethernet SPA supports only optical interfaces. As a result the
2-Port Gigabit Synchronous Ethernet SPA does not support multiple line speeds (10/100/1000 Mbps) on
the 2-Port Gigabit Ethernet SPA.
Synchronous Ethernet is a layer 1 technology which delivers a very accurate frequency reference, but it
doesn't address time synchronization. IEEE1588v2 defines a Precision Time Protocol (PTP),which
distributes accurate timing information (both clock frequency and time of day) over packet networks.
OL-5052-14
SPA status LED
Line status LED - A bi-color, surface-mount, right-angle LED dedicated to each SFP, RJ-45 and
coax connector to indicate port status
Debug LED
describes the 2-Port Gigabit Synchronous Ethernet SPA LEDs.
2-Port Gigabit Synchronous Ethernet SPA LEDs
Color
Amber
Green
Amber and
green
Amber
Green
Amber and
green
Green
Meaning
The SPA is powered off.
The SPA is powered on but initializing.
The SPA is powered on and operational.
This state is unused and its meaning is undefined. Port is
not enabled.
Port is not enabled by the software.
Port is enabled by the software, but there is a problem with
the link.
Port is enabled by the software, and the link is valid.
This state is unused and its meaning is undefined.
Indicates a SPA OK status to the host.
Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
2-Port Gigabit Synchronous Ethernet SPA Overview
SPA-XXXXXXXXXXX
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