User manual

ARK-3381 User Manual 20
(*): means default setting of the jumper/function
Figure 3.1: JP2/JP3/JP4 Jumper pin layout
3.5 COM4 RS-232/422/485 Jumper setting
(JP5/JP6/JP7 Located on internal I/O board)
The COM4 port connector located on rear face plate of ARK-3381 unit,
which can be configured to operate in RS-232, RS-422 or RS-485 mode
by setting up the Jumper Pins of JP5/JP6/JP7 located on internal I/O
board of ARK-3381 unit. Please refer the Table 3.3 to select the setting.
The default setting value has been set for RS-232.
(*): means default setting of the jumper/function
Table 3.2: COM3 RS232/422/485 Jumper Selection
Function JP2 JP3 JP4
RS232 * 1-3 closed
2-4 closed
1-3 closed
2-4 closed
5-6 closed
RS422 3-5 closed
4-6 closed
3-5 closed,
4-6 closed
3-4 closed
RS485 3-5 closed
4-6 closed
3-5 closed,
4-6 closed
1-2 closed
Table 3.3: COM4 RS232/422/485 Jumper Selection
Function JP5 JP6 JP7
RS232 * 1-3 closed 2-4
closed
1-3 closed 2-
4 closed
5-6 closed
RS422 3-5 closed 4-6
closed
3-5 closed,
4-6 closed
3-4 closed
RS485 3-5 closed 4-6
closed
3-5 closed 4-
6 closed
1-2 closed