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General| Connectivity Technology | Wireless |
|---|---|
| Frequency Band | 2.4 GHz |
| Wireless Speed | Up to 54 Mbps |
| WAN Ports | 1 |
| Security | WEP, WPA, WPA2 |
| Data Link Protocol | IEEE 802.11b, IEEE 802.11g |
| Wireless Standard | 802.11b/g |
| Antenna Type | External |
| Features | Firewall, VPN support |
| LAN Ports | 4 x 10/100Base-TX |
| Ports | 1 x 10/100 WAN, 4 x 10/100 LAN |
| Power Supply | External power adapter |
Lists revisions of the manual with dates and changes.
Lists trademarks and copyright information.
Lists all items included in the product box.
Details the network and browser requirements for the device.
Highlights the key capabilities and specifications of the DIR-457U.
Illustrates and explains the top panel components and LEDs.
Provides information and tips on battery usage and care.
Provides advice on optimal placement for wireless range.
Guides through initial setup, including SIM and battery insertion.
Details how to charge the device using various methods.
Steps to connect the device in USB modem mode.
Steps to use the device in Wi-Fi router mode.
How to configure the 3G connection using the manager.
Managing profiles (editing, deleting, defaults) for connections.
Managing current and historical network connections.
Setting connection limits and viewing usage statistics.
Describes the SMS functionality and its settings.
Managing SIM card contacts (add, edit, delete).
Managing SIM card PIN and viewing information.
Steps to connect to the network using the MAC OS manager.
Managing profiles (editing, deleting, defaults) on MAC OS.
Managing current and historical network connections on MAC OS.
Setting connection limits and viewing usage statistics on MAC OS.
Managing SIM card contacts on MAC OS.
Managing SIM card PIN and information on MAC OS.
How to open the web browser and access the router's IP.
Guides through setting up internet connection via wizard.
How to manually configure 3G internet parameters.
Guides through wireless network setup.
How to configure local network IP and DHCP settings.
How to configure the firewall and DMZ settings.
How to check for and install firmware updates.
Basic information about wireless networking concepts.
Provides tips for router placement and reducing interference.
Recommendations for securing wireless networks using WPA/WEP.
How to verify the device's IP address.
How to manually assign a static IP address.
Lists detailed technical specifications of the DIR-457U.
Warning regarding potential radio interference from the product.
Important installation and operation note regarding body distance.
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