
User Guide
AP51
IEEE 802.11b/g High-Power Wireless AP/Router

Table of Contents
Chapter 1: Introduction 1-1
Package Checklist 1-1
Hardware Description 1-2
LED Indicators 1-3
Ethernet RJ-45 Ports 1-3
Power Socket 1-4
Reset Button 1-4
WPS SET Button 1-4
Chapter 2: Installation 2-1
WISP Mode 2-1
Home Bridge Mode 2-2
Home Router Mode 2-2
Chapter 3: Network Planning 3-1
Internet Gateway Router 3-1
LAN Acce ss Point 3-2
Wireless Client 3-2
Wireless Bridge 3-3
Appendix A: Troubleshooting A-1
Appendix B: Specifications B-1
Glossary

Chapter 1: Introduction
The AP51 is an IEEE 802.11b/g wireless High-Power
Internet access device (cable or ADSL modem) to your PC or local area network, or to
its own secure wireless network.
AP/
Route that connects your
Package Checklist
The AP51 AP/Router package includes:
1.
2.
3.
Inform your dealer if there are any incorrect, missing or damaged parts. If possible,
retain the carton, including the original packing materials. Use them again to repack
the product in case there is a need to return it.
AP51
AC power adapter
User Manual CD
1-1

LED Indicators
The AP51 includes three status LED indicators, as described in the following figure and
table.
Wireless Link/Activity
Ethernet Link
Power
LED Status Description
Power On Indicates AP51 is power on
Ethernet
WLAN
Hardware Description
1
On Indicates a valid link on Ethernet
Port
Off The Ethernet port has no valid
link
On/Flashing Indicates the 802.11b/g radio is
enabled. Flashing indicates
wireless network activity
Off Indicates the 802.11b/g radio is
disabled
Ethernet RJ-45 Ports
The AP51 has the following RJ-45 ports:
z
z
The Ethernet RJ-45 port auto-negotiate the operating speed to 10/100 Mbps, the
mode to half/full duplex, and the pin signals to MDI/MDI-X. Automatic MDI/MDI-X
support enables you to use straight-through cables for all network connections to PCs,
switches, or hubs.
As Ethernet RJ-45 LAN port is for connection to a PC or to a 10/100 Mbps.
As Ethernet RJ-45 WAN port is for connection to a DSL or cable modem, or to a
LAN or other device that provides your Internet access.
1-3

1
Introduction
Power Socket
The AP51 does not have a power switch. It is powered on when connected to the AC
power adapter, and the power adapter is connected to a power source.
The power adapter automatically adjusts to any voltage between 100-240 volts at 50
or 60 Hz. No voltage range settings are required.
Reset Button
The Reset button can be used to restart the AP51 or restore the factory default
configuration. If you press the button for less than 5 seconds, the AP51 will restart. If
you press and hold down the button for 5 seconds or more, any configuration changes
you may have made are removed and the AP51 is restored to its factory default
configuration.
1-4