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Serial-to-Ethernet Device Servers
NPort® W2150/2250 Plus
1 and 2-port RS-232/422/485 IEEE 802.11a/b/g wireless device servers
Link any serial device to an IEEE 802.11a/b/g network ›
921.6 Kbps baudrate for RS-232/422/485 transmissions ›
Web-based configuration using built-in Ethernet or WLAN ›
Enhanced remote configuration with HTTPS, SSH ›
Secure data access with WEP, WPA, WPA2 ›
Built-in WLAN site survey tool ›
Wireless roaming with user-defined signal strength threshold ›
Off-line port buffering and serial data log ›
Dual power inputs (1 power jack, 1 terminal block) ›
The NPort® W2150 Plus and W2250 Plus are the ideal choice for
connecting your serial devices, such as PLCs, meters, and sensors, to
a wireless LAN. Your communications software will be able to access
the serial devices from anywhere over a wireless LAN. Moreover,
the wireless device servers require fewer cables and are ideal for
applications that involve difficult wiring situations. In Infrastructure
Wireless device servers require fewer cables and are ideal for
applications that involve difficult wiring situations. In Infrastructure
Mode or Ad-Hoc Mode, the NPort® W2150 Plus and NPort® W2250
Wi-Fi networks at offices and factories allow users to move, or “roam,”
between several APs (Access Points). The NPort® W2150 Plus and
NPort® W2250 Plus include a “Connect rule” setting to allow wireless
roaming.
Mode or Ad-Hoc Mode, the NPort® W2150 Plus and NPort® W2250
Plus can connect to Wi-Fi networks at offices and factories to allow
users to move, or “roam,” between several APs (Access Points), and
offer an excellent solution for devices that are frequently moved from
place to place.
Plus can communicate with any host computer through an access
point, or with another NPort® W2150 Plus or NPort® W2250 Plus
located up to 100 meters away.
For mission-critical applications, data from the serial device must not
be lost if the wireless connection goes down. The NPort® W2150
Plus and NPort® W2250 Plus are designed to continue operating if
the wireless connection is disconnected temporarily. If the wireless
connection is retraining, or if the connection fails, the serial data from
the serial device will be queued in the 10 MB port buffer built into the
device server. As soon as the wireless connection returns to normal,
the data stored in the buffer will be sent to its destination. In addition,
a serial data log can be enabled to make troubleshooting easier.
The serial data log buffer for both the NPort® W2150 Plus and
NPort® W2250 Plus is 64 KB per port.
The “Connect rule” field is only available in Infrastructure Mode and is
used to specify the NPort®’s roaming behavior. When “Signal strength
of AP” is selected, if more than one AP is detected, the NPort® will
connect to the AP that has the highest signal strength, regardless
of priority as set in the Priority field. When “Priority sequential” is
selected, the NPort® will always try to connect to APs in order of
priority, as set in the Priority field, regardless of signal strength. When
“Fixed on 1st priority” is selected, the NPort® is only allowed to
connect to the first priority AP, as set in the “Priority” field.
This “Priority” field is only available in Infrastructure Mode, and is
used to set the priorities of the three available profiles.
Overview
Off-line Port Buffering and Serial Data Log for Each Port
802.11a/b/g Wireless Connectivity to Serial Devices
Wireless Roaming Function
NPort® W2150 Plus NPort® W2250 Plus
(46 pages)
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