Datalogic Matrix 120 Product Reference Manual page 173

* When using the USB interface without Datalogic accessory cables, EMC compliance requires the
USB data and power signals originate from the same source (i.e.computer). Max USB cable
length from M12 17-pin connector is 2 meters. Incorrect disconnection can result in damage
to the USB hub.
** Do not leave floating, see "
details.
In order to meet EMC requirements:
• connect the reader chassis to the plant earth ground by means of a flat
copper braid shorter than 100 mm;
• connect your cable shield to the locking ring nut of the connector.
Product Reference Guide
Power, Com and I/O Connector Pinout
Pin Name
16 -
14 -
4 -
7 *USB+
15 *USB-
Pin Name
17
Main Interface
11
(SW Selectable)
12
10
RS422 Full Duplex Interface" on page 57
Power, Com and I/O Connector
Description
USB data + (only for USB models)
USB data - (only for USB models)
RS232
TX
RX
-
-
RS422 Full-Duplex
TX+
**RX+
TX-
**RX-
for connection
159