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Serial-to-Ethernet Device Servers
The NPort® W2150 Plus and NPort® W2250 Plus both have a built-in WLAN
site survey tool. Additional software is NOT required to complete the site
survey.
The purpose of conducting a WLAN site survey is to determine how many
access points are required, and where the access points should be placed.
For most implementations, the number and placement of access points is
designed to guarantee a minimum data rate. With wireless systems, it is often
necessary to perform a WLAN site survey before installing the access points in
order to understand how radio waves behave within the facility.
Unauthorized access is one of the biggest headaches for system
managers. In addition to IP filtering and password protection, the
NPort® W2150 Plus and NPort® W2250 Plus also support SSH and
SSL to provide protection from hackers. To transmit control messages
securely, open the web console using a web browser that supports
https (Internet Explorer, for example). You may also open the serial or
Telnet console, such as PuTTY, using a terminal emulator that supports
SSH.
Most device servers only support a fixed number of serial baudrates.
However, some applications require special baudrates, such as 250
Kbps or 500 Kbps. With the NPort® W2150 Plus and NPort® W2250
Plus, you can enter any baudrate between 50 and 921.6 Kbps.
If your device’s baudrate is not a standard baudrate, select “other”
from the drop-down list and then enter the baudrate.
Ethernet Interface
Number of Ports: 1
Speed: 10/100 Mbps, auto MDI/MDIX
Connector: RJ45
Magnetic Isolation Protection: 1.5 KV built-in
WLAN Interface
Standard Compliance: 802.11a/b/g
Network Modes: Infrastructure, Ad-Hoc
Transmit Power:
802.11a: 14 dBm (typical)
802.11b: 17 dBm (typical)
802.11g: 15 dBm (typical)
Receive Sensitivity: -80 dBm
Radio Frequency Type: DSSS/OFDM
Transmission Rate:
802.11a: 54 Mbps
802.11b: 11 Mbps
802.11g: 54 Mbps (max.) with auto fallback (54, 48, 36, 24, 18, 12,
11, 9, 6, 5.5, 2, 1 Mbps)
Transmission Distance: Up to 100 meters (in open areas)
Wireless Security:
• WEP: 64-bit/128-bit data encryption
• WPA, WPA2, 802.11i: Enterprise mode and
Pre-Share Key (PSK) mode
• Encryption: 128-bit TKIP/AES-CCMP EAP-TLS, PEAP/GTC, PEAP/
MD5, PEAP/MSCHAPV2, EAP-TTLS/PAP, EAP-TTLS/CHAP,
EAP-TTLS/MSCHAP, EAP-TTLS/MSCHAPV2, EAP-TTLS/EAP-
MSCHAPV2, EAP-TTLS/EAP-GTC, EAP-TTLS/EAP-MD5, LEAP
Antenna Connector: Reverse SMA
Serial Interface
Number of Ports:
NPort® W2150 Plus: 1
NPort® W2250 Plus: 2
Serial Standards: RS-232/422/485 (DB9 male connector)
Off-line Port Buffering:
NPort® W2150 Plus: 20 MB
NPort® W2250 Plus: 10 MB
Serial Communication Parameters
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Flow Control: RTS/CTS, XON/XOFF
Baudrate: 50 bps to 921.6 Kbps
Serial Data Log: 64 KB
Serial Signals
RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422: TxD+, TxD-, RxD+, RxD-, GND
RS-485-4w: TxD+, TxD-, RxD+, RxD-, GND
RS-485-2w: Data+, Data-, GND
Software
Network Protocols: ICMP, IP, TCP, UDP, DHCP, Telnet, DNS, SNMP
V1/V2c/V3, HTTP, SMTP, SNTP, SSH, HTTPS
Configuration Options: Web Console, Serial Console, Telnet Console,
Windows Utility
Secure Configuration Options: HTTPS, SSH
Windows Real COM Drivers: Windows 95, 98, ME, NT, 2000, XP
x86/x64, 2003 x86/x64, Vista x86/x64, 2008 x86/x64, 7 x86/x64,
Embedded CE 5.0/6.0, XP Embedded
Specifications
Secure Remote Management and Configuration with SSH/SSL
Select “Any Baudrate” between 50 bps and 921.6 Kbps
Built-in WLAN Site Survey Tool
(46 Seiten)
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