Network Card User Manual
NPort IA5150/5250 Series User’s Manual  Web Console Configuration 
5-30
Local TCP port 
Setting  Factory Default  Necessity 
1 to 65535  4001  Required 
The TCP port that other devices must use to contact this device. To avoid conflicts with standard 
TCP ports, the default is set to 4001. 
Reverse Telnet Mode 
TCP alive check time 
Setting  Factory Default  Necessity 
0 to 99 min  0  Optional 
Specifies the time slice for checking if the TCP connection is alive. If no response, NPort IA will 
disconnect the original connection. 
Inactivity time 
Setting  Factory Default  Necessity 
0 to 65535 ms  0  Optional 
Idle time setting for auto-disconnection. 0 min. means it will never disconnect. 
Local TCP port 
Setting  Factory Default  Necessity 
1 to 65535  4001  Optional 
Each of NPort IA’s serial ports is mapped to a TCP port. To avoid conflicts with TCP ports, set port 
numbers to 4001 for port1, 4002 for port 2, etc. (like the default values). 
Map <CR-LF> 
Setting  Factory Default  Necessity 
CR, LF, or CR-LF  CR-LF  Optional 
If data received through NPort IA’s Ethernet port is sent using the “enter” command, the data will be 
transmitted out the serial port with an added 
(1) “carriage return + line feed” if you select the <CR-LF> option 
  (i.e., the cursor will jump to the next line, and return to the first character of the line) 
(2) “carriage return” if you select the <CR> option 
  (i.e., the cursor will return to the first character of the line) 
(3) “line feed” if you select the <LF> option. 
  (i.e., the cursor will jump to the next line, but not move horizontally) 










