Allied Telesis AT-PBC18 User Manual download pdf (Page 8)

PN 613-50381-00 Rev A 8 Allied Telesyn, Inc.

Smart

MissingLink

Like MissingLink, the Smart MissingLink feature terminates the link on

the failed port thereby notifying you when a connection has been lost.

Additionally, Smart MissingLink indicates on which port the connection

has failed. This is shown by a blinking LK LED on the good port.

For example, if the network twisted pair cable to the 1000Base-T port on

the media converter were to fail, the LK LED on the 1000Base-X fiber

optic port will blink, indicating a failed connection on the twisted pair

port. The fiber optic port is still able to receive a signal.

The switch notifies the end-node connected to the fiber optic port that

the connection on the twisted pair port has been lost. If the failure had

started with the fiber optic cabling, the LK LED on the twisted pair port

would blink.

The value to this type of network monitoring and fault notification is so

that you can quickly see which port has failed and troubleshoot your

network accordingly.

Cable Specifications

Twisted Pair Port Table 4 lists the cabling specifications for the 1000Base-T twisted pair

port.

Table 4 1000Base-T Twisted Pair Specifications

Fiber Optic Port Refer to the AT-G8SX and AT-G8LX GBIC Transceivers Installation

Guide for the cabling and fiber optic port specifications. This guide is

available from the Allied Telesyn web site at www.alliedtelesyn.com

Allied Telesyn, Inc. ! 960 Stewart Drive, Suite B ! Sunnyvale, CA 94085 USA

Tel (408) 730-0950 ! Fax (408) 736-0100 ! Technical Support Tel 1-800-428-4835 ! Fax 1 (425) 481-3790

permission from Allied Telesyn, Inc.

Connector Cable Maximum Distance

RJ-45 Shielded or unshielded twisted

pair Category 5 or better

550 m (1,804 ft)

1 2 3 4 5 6 7 8

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Allied Telesis AT-PBC18 User Manual Page 8