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NPort® W2150A/W2250A

Serial-to-Ethernet Device Servers

Serial-to-Ethernet Device Servers >

NPort

W2150A/W2250A

1 and 2-port RS-232/422/485 IEEE 802.11a/b/g wireless device servers

The NPort® W2150A and W2250A 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 Mode or Ad-Hoc

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® W2150A and NPort® W2250A

Wi-Fi networks at offices and factories allow users to move, or “roam,”

between several APs (Access Points). Moxa’s Fast Roaming function

Mode, the NPort® W2150A and NPort® W2250A 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.

can communicate with any host computer through an access point, or

with another NPort® W2150A or NPort® W2250A 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® W2150A

and NPort® W2250A 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® W2150A and NPort®

W2250A is 64 KB per port.

increases the roaming speed to unify AP channels and avoid wasting

channel hopping time while roaming.

Overview

Off-line Port Buffering and Serial Data Log for Each Port

802.11a/b/g Wireless Connectivity to Serial Devices

Wireless Fast Roaming Function

› 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 surge protection for serial, LAN, and power

› Remote conﬁguration with HTTPS, SSH

› Secure data access with WEP, WPA, WPA2

› Built-in WLAN site survey tool

› Fast automatic wireless fast roaming

› Off-line port buffering and serial data log

› Dual power inputs (1 screw-type power jack, 1 terminal block)

The NPort® W2150A and NPort® W2250A 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.

Built-in WLAN Site Survey Tool

NPort® W2150A NPort® W2250A

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