User manual

User manual Version 2.3

ABLELink

Serial-Ethernet Server

GW21W

2.3 Auto IP

A DHCP server automatically assigns the IP address and network settings. GW21W supports DHCP. It will

supply for the unit with an IP address gateway address, and subnet mask. You may use Monitor.exe

software to search network information automatically by putting a check on Auto IP on Dialog window.

2.4 TCP/IP Port Number

Port number 4660 and 4661 are defaults of GW21W and are associated with serial ports COM1 and

COM2 respectively. After your application program connects to the TCP port 4660 (or 4661) of GW21W,

data being sent to this TCP connection from your application program are transparent to the COM1 (or

COM2) of GW21W. Vice versa is also true.

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