Cabletron Systems SmartSwitch 8000, Руководство по началу работы

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SSR 8000/8600 Getting Started Guide 39
Chapter 1: Features Overview
ATM Line Card (T-Series)
The ATM line card actually houses various Physical Layer (PHY) interface cards in its two
available slots. ATM PHY cards provide the media-specific portion of an ATM interface to
support ATM connectivity across multiple platforms using different media types. The host
system provides the power, initialization, and control for the PHY card. The PHY card is
used with an ATM segmentation and reassembly (SAR) or cell-switching function.
See “Installing the ATM PHY Cards” on page 68 for installation instructions for the ATM
PHY cards into the ATM line card.
Per-port Tx • Green – indicates when the port’s transceiver transmits
packets
• Amber – indicates when the port’s transceiver transmits
flow-control packets
Master • Amber – indicates that the port is configured as the timing
master during auto-negotiation
• Off – indicates when the port is configured as the timing
slave during auto-negotiation
Quality • Off – indicates that either auto-negotiation is in progress or
the local receiver status is not OK
• Green – indicates that either auto-negotiation is complete
and is trying to establish a link or a link is established
• Fast Blink – indicates a low SNR and close to data error
• Slow Blink – indicates detection of receive bit error
LED Description