Auxiliary Interface - Datalogic DX8200A Reference Manual

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 26-pin connector are used for RS485 half-duplex interface
connection:

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 26-pin connector are used for RS232 full-duplex interface
connection:
12
Pin Name
2 RTX485 +
4 RTX485 -
7 GND-ISO
DX8200A
2
4
7
1
Figure 6 – RS485 Half-Duplex Interface Connections
Pin Name
20 RXAUX
21 TXAUX
23 SGND AUX
DX8200A
20
21
23
1
Figure 7 - RS232 Auxiliary Interface Connections
Function
RS485 input/output (+)
RS485 input/output (-)
Main signal ground
MULTIPLEXER
RTX485+
RTX485+
RTX485-
RTX485-
GND_ISO
RS485REF
CHASSIS
Earth
Ground
Function
Receive data
Transmit data
Auxiliary signal ground
USER INTERFACE
RXAUX
TXD
TXAUX
RXD
GNDAUX
GND
CHASSIS
Earth
Ground
DX8200A