AR-B1476 User
’
s Guide
3-7
3.2.6 Serial Port
(1) RS-232/RS-485 Select (SW1, JP4 & JP9)
JP4 selects COM B port, and adjusts the CN5 connector is RS-485 or RS-232C. JP9 selects COM A port for using
DB2 for RS-232C or connects External RS-485. SW1 adjusts the onboard RS-485.
(A) COM-A RS-485 Adapter Select (JP9)
Reserved for Acrosser's
RS-485 Adapter Used Only
1
2
3
RS-232C
1
2
3
Factory-Default Setting
Figure 3-12 JP9: COM-A RS-485 Adapter Select
(B) COM-B RS-485 Adapter Select (JP4)
Reserved for Acrosser's
RS-485 Adapter Used Only
1
2
3
RS-232C
1
2
3
Factory-Default Setting
Figure 3-13 JP4: COM-B RS-485 Adapter Select
(C) COM-B RS-232/RS-485 Select (SW1)
Reserved for Acrosser's
RS-485 Adapter Used Only
RS-232C
Factory-Default Setting
On
Off
1
4
3
2
SW1
On
Off
1
4
3
2
SW1
Figure 3-14 SW1: COM-B RS-232/RS-485 Select
(2) RS-485 Terminator Select (JP2)
OFF
Factory Preset
1
2
1
2
ON
Figure 3-15 JP2: RS-485 Terminator Select
