DX6400
2
RS485 Half-Duplex Interface
The RS485 half-duplex interface can be used for multidrop connections with a Datalogic
multiplexer or it can also be used for a master/slave layout. The overall maximum cable
length should not exceed 1200 m (3937 ft).
The following pins of the 25-pin and 26-pin connector are used for RS485 half-duplex
interface connection:
Pin Name
Function
2
RS485 input/output (+)
4
RTX485 -
RS485 input/output (-)
7 GND_ISO
Main
signal
ground
DX6400
7
GND_ISO
2
RTX485-
4
RS485REF
MULTIPLEXER
RTX485-
1
Earth
Ground
CHASSIS
Figure 14 – RS485 Half-Duplex Interface Connections
Auxiliary Interface
The auxiliary serial interface is equipped with RS232 full-duplex interface connections. The
interface type is exclusive and is selectable through the Genius™ configuration program. The
overall maximum cable length should not exceed 15 m (50 ft).
The following pins of the 25-pin and 26-pin connector are used for RS232 full-duplex
interface connection:
Pin Name
Function
20 RXAUX
Receive
data
21 TXAUX
Transmit
data
23
SGND AUX
Auxiliary signal ground
DX6400
USER INTERFACE
23
GNDAUX
GND
TXD
RXAUX
20
RXD
TXAUX
21
1
Earth
Ground
CHASSIS
Figure 15 - RS232 Auxiliary Interface Connections
14
Summary of Contents for DX6400
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