Accton Technology CheetaHub Power-3008A Quick Installation Manual - page 3
Quick Installation Guide
CheetaHub Power-3008A/3016A
1
Contents
Introduction
1
Package Contents
1
Description of Hardware
1
Mounting the Hub
2
Stacking Hubs on a Flat Surface
2
Mounting Hubs in a Rack
3
Connecting the Hub System
3
Making a Connection via an RJ-45 Port
3
Making a Connection via an MDI Daisy-Chain port
3
Connecting to the Stacks Backplane
4
Powering On the Hub
5
Verifying Port Status
5
Verifying System Operation
5
Applications
6
Product Specifications
7
Troubleshooting
7
Diagnosing Hub Indicators
7
Power and Cooling Problems
8
Installation
8
Port and Cable Assignments
8
RJ-45 Port Description
8
EMI Certification
9
Safety Compliance
10
Warranty
11
Introduction
The CheetaHub Power-3008A/3016A provides 8 (or 16) RJ-45 ports for 10 Mbps or
100 Mbps Ethernet connections (detected by auto-sensing). These dual-speed
stackable hubs contain two internal repeater buses one for 10 Mbps traffic and
another for 100 Mbps traffic. Traffic passing between attached devices that operate
at the same speed is confined within the appropriate repeater bus.
In the CheetaHub Power-3008A-SW/3016A-SW, an internal Ethernet switch,
consisting of a 10 Mbps and a 100 Mbps switching port, is used to link the repeater
buses. Only if traffic has to be passed between a 10 Mbps and a 100 Mbps device,
if the destination address is not found in the address table, or broadcast traffic is
sent, will data be forwarded to the other repeater bus. These hubs are designed to
perform switching between the 10 Mbps and 100 Mbps repeater buses for the
individual hub and for the attached stack.
These stackable hubs provide an ideal bridge between 10 Mbps and 100 Mbps
Ethernet networks, all for a price that's comparable to a standard Ethernet or Fast
Ethernet hub. Moreover, the smart design built into the display panel provides a
friendly interface that simplifies installation and network troubleshooting.
Package Contents
CheetaHub Power-3008A (Model No. EH3008A)
Fast Ethernet dual-speed hub with 8 10/100 Mbps ports
or CheetaHub Power-3008A (Model No. EH3008A-SW)
Fast Ethernet dual-speed hub with 8 10/100 Mbps ports; with internal switching
or CheetaHub Power-3016A (Model No. EH3016A)
Fast Ethernet dual-speed hub with 16 10/100 Mbps ports
or CheetaHub Power-3016A (Model No. EH3016A-SW)
Fast Ethernet dual-speed hub with 16 10/100 Mbps ports; with internal switching
Four rubber foot pads
Hub stack cable
Rack mount bracket kit
Quick Installation Guide
AC power cord
Owner registration card
Description of Hardware
These four stackable hubs provide 8 (16) dual-speed ports (10/100 Mbps). Each of
these ports automatically senses the speed of the attached device, and channels the
data to the appropriate backplane (i.e., the 10 or 100 Mbps repeater bus). Hubs with
the internal switching function (3008A-SW and 3016A-SW) contain a 2-port switch
that connects the two repeater buses. The two repeater buses are extended across
the stack backplane (via the cable connection to the stack ports) to the other hubs in
the stack. Up to six hubs can be stacked together.
The CheetaHub Power-3008A/3016A detects the speed of the device connected to
each port, and directs traffic to the corresponding 10 or 100 Mbps repeater bus as
required. However, when a CheetaHub Power-3008A-SW/3016A-SW is included in
the stack, the learing function of this hub stores the node address and the correponding
segment number (i.e., bus 1 or 2) of each incoming packet in a routing table. This
information is subsequently used to pass traffic to the segment containing the
destination node. By confining traffic to its respective collision domain, and only
forwarding traffic to the other segment when required, the overall load on the
network is significantly reduced.