KBox A-103 – User Guide, Rev. 3.0
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In order to configure this external interface for serial communication (as RS422 or RS485) corresponding to your
requirements, set the switches of the DIP switch (SW1) to “ON” or “OFF” (factory settings are in bold letters). For
accessing the DIP switch refer to the procedure described in the chapter 5.1 “Opening and Closing the KBox A-103”.
Table 1: DIP1, DIP2 and DIP3 settings for serial communication type
X204: Serial Communication Type
Transmitting<->receiving
SW1 Settings
DIP1
DIP2
DIP3
RS422 4-Channel Mode
-
OFF
OFF
OFF
RS485 4-Wire Mode (Bus-Master)
-
ON
OFF
ON
RS485 2-Wire Mode
RTS
ON
ON
ON
RS485 2-Wire Mode
Timeout
ON
ON
OFF
Table 2: DIP4 setting in order to activate or deactivate the termination resistor
Termination Resistor for RS422 and RS485
SW1 Settings
DIP4
Deactivated
OFF
Activated
ON
Table 3: DIP5, DIP6, DIP7 and DIP8 settings in order to set the needed Timeout and min. baud rate
Timeout
Min. Baud Rate
SW1 Settings
DIP5
DIP6
DIP7
DIP8
10.2ms
1200
OFF
OFF
OFF
OFF
9.6ms
OFF
OFF
OFF
ON
9.0ms
OFF
OFF
ON
OFF
8.4ms
OFF
OFF
ON
ON
7.8ms
OFF
ON
OFF
OFF
7.2ms
OFF
ON
OFF
ON
6.5ms
OFF
ON
ON
OFF
5.9ms
OFF
ON
ON
ON
4.8ms
2400
ON
OFF
OFF
OFF
4.3ms
ON
OFF
OFF
ON
3.7ms
ON
OFF
ON
OFF
3.1ms
ON
OFF
ON
ON
2.5ms
4800
ON
ON
OFF
OFF
1.9ms
ON
ON
OFF
ON
1.2ms
9600
ON
ON
ON
OFF
0.6ms
19200
ON
ON
ON
ON
4.
Replace carefully power and data cables of the SSD (if installed) and the access cover to the system and screw it
on with the retained screws.
5.
Tighten the retained screws when the cover is firmly in place.