3Com DUA1711-1AAA01 manual Introduction, LEDs, His guide covers the following products

SuperStack® 3 Switch 4300 100BASE-FX Module (3C17111) and Dual Module (3C17112) User Guide

DUA1711-1AAA01

S/N: XXXX/7XXXXXXXXX

3C17111	SuperStack
	3	Switch
			4300	100BASE-
				FX

INTRODUCTION

his guide covers the following products:

SuperStack® 3 Switch 4300 100BASE-FX Module (3C17111) provides one Fast Ethernet fiber optic port

Tfor connection to your network.

SuperStack 3 Switch 4300 100BASE-FX Dual Module (3C17112) provides two Fast Ethernet fiber optic ports for connection to your network.

The procedures described in this User Guide assume that you have a single port Module. If you have a Dual Module the procedures are the same, except that procedures relating to the port apply to each port on the Dual Module.

The Module conforms to the half and full duplex implementation of the Fast Ethernet standard, IEEE 802.3u, and the port provides a 100 Mbps connection to another 100BASE-FX device. The port can operate in either half or full duplex mode and uses 62.5 ∝ m multimode fiber optic cable with MT-RJ duplex connectors. The port supports the segment length specified in IEEE 802.3u, as shown below:

Fiber Size	Fiber Bandwidth	Segment Lengths Supported
62.5 ∝ m	500 MHz*km	Half Duplex: 2–412 m (7–1487 ft)
		Full Duplex: 2–2000 m (7–7220 ft)

LEDs

You can gather information about the status of the Module and its packet activity using the Expansion Module port LEDs on the front of the Switch.

Module Packet LED

Appearance	Color	Meaning
On	Green	Packets are being transmitted or received
		on the Module port.
Off	No color	There are no packets being transmitted or
		received on the Module port.
Module Status LED

Appearance	Color	Meaning
On	Green	The Module is installed.
Off	No color	There is no Module installed or an
		unsupported Module is fitted.

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