Ma Current Loop Interface (Int-22 Accessory Only) - Datalogic DS2400 Installation Manual

INSTALLATION
Figure 17 shows a multidrop configuration with DS2400 scanners connected to a
Multiplexer.
Figure 17 - DS2400 Multidrop connection to a Multiplexer

20 mA Current Loop Interface (INT-22 Accessory Only)

When the INT-22 accessory board is installed, the DS2400 is equipped with a 20 mA
passive current loop interface.
The following pins of the 25-pin connector are used:
Pin
5
3
4
2
DS2400
# x
(up to 31)
DS2400
# 1
DS2400
# 0
Three wires +
CHASSIS
MULTIPLEXER
Name
CLIN-
CLIN+
CLOUT-
CLOUT+
120 Ohm
max 2 m
RTX485 +
RTX485 -
SGND
shield
RTX485 +
RTX485 -
RS485 REF
SHIELD
120 Ohm
Function
current loop input -
current loop input +
current loop output -
current loop output +
2
17