3Com 3C172221 manual Introduction, DUA1722-1AAA01, LEDs

SuperStack® 3 Switch 4400 1000BASE-SX Module (3C17221) User Guide

DUA1722-1AAA01

CLASS1

LASER

PRODUCT

This

product

3C17221

Subchapter

3

with

J, complies

applicable

at

DHHS

Com

SuperStack

Europe date of Rule 21

Limited manufacture

CFR

3

1000BASE-

SX

Module

INTRODUCTION

The SuperStack® 3 Switch 4400 1000BASE-SX Module (3C17221) provides your SuperStack 3 Switch 4400 with one 850 nm Gigabit Ethernet fiber optic port.

The Module conforms to the full duplex implementation of the Gigabit Ethernet standard, IEEE 802.3z, and provides a 1000 Mbps connection to another 1000BASE-SX device. This port uses 62.5 ∝ m or 50 ∝ m multimode fiber optic cable with MT-RJ duplex connectors and supports the segment lengths specified in IEEE 802.3z, as shown below:

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

Color	Appearance	Indicates
Green	On	Full duplex activity being received or
		transmitted.

Fiber Size	Fiber Bandwidth	Segment Lengths Supported
	at 850 nm
62.5 ∝ m	160 MHz*km	2–220 m (7–722 ft)
	200 MHz*km	2–275 m (7–902 ft)
50 ∝ m	400 MHz*km	2–500 m (7–1805 ft)
	500 MHz*km	2–550 m (7–1805 ft)

No color	Off	No activity.
Module Status LED
Color	Appearance	Indicates
Green	On	The Module is installed and supported. The
		Link Status has been determined.
Yellow	On	The Module is installed and supported. The
		Link Status has not been determined or
		there is no link for a single port Module.
Yellow	Flashing	The Module is installed, however, it is not
		supported.
No color	Off	The Module is not installed.

1