Black Box LPD401A, Руководство пользователя

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Introduction
2 Manual Documentation Number: LPD40xA-1105m
Black Box Corporation - 1000 Park Drive - Lawrence, PA 15055-1018
www.blackbox.com -- Tech Support and Ordering: 724-746-5500 - Fax: 724-746-0746
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10/100 Mbps auto-detecting operation
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IEEE 802.3af (Power over Ethernet) compatible
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Web Configuration and Management user interface
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Email event notification
Communication Modes
LPD401A Ethernet to RS-232 converters allow you to connect
serial devices over a LAN or WAN. Serial devices no longer are limited to a
physical connection to the PC COM port. They can be installed anywhere on the
LAN using TCP/IP or UDP/IP communications. This allows traditional Windows
PC software access to serial devices anywhere on the LAN/WAN network.
Direct IP
Direct IP Mode allows applications using TCP/IP or UDP/IP socket
programs to communicate with the asynchronous serial ports on the serial
server. In this mode the LPD401A is configured as a TCP or
UDP server. The socket program running on the PC establishes a
communication connection. The data is sent directly to and from the serial
port on the server.
TCP Server Mode allows network devices to initiate a TCP connection to
the serial device connected to the serial port on the LPD401A.
This is also referred to as reverse telnet.
UDP Server Mode allows network devices to initiate a UDP connection to
the serial device attached to the serial port of the LPD401A.
When using UDP protocol the LPD401A can be configured to
broadcast data to and receive data from multiple IP addresses.
Virtual COM Port
Virtual COM Port mode (also called RealPort, or com port redirection)
allows you to map a COM port on your PC to the serial port on your
LPD401A. Using the RealPort software
(included with the
LPD401A) you create virtual COM ports on your PC. When your
application sends data to this port, RealPort redirects the data across the
network to serial device connected to the LPD401A serial port.
The network is transparent to the user application and the serial device
connected to the LPD401A.