MATRIX 210™ REFERENCE MANUAL
5 25-PIN CABLE ELECTRICAL CONNECTIONS
5.1 25-PIN CONNECTOR
The Matrix 210™ reader is equipped with a 25-pin male D-sub connector for connection to
the power supply, serial interfaces and input/output signals. The details of the connector pins
are indicated in the following table:
Figure 61 - 25-pin Male D-sub Connector
25-pin D-sub male connector pinout
Power supply input voltage +
Power supply input voltage -
Cable shield connected to chassis
External Trigger A (polarity insensitive)
External Trigger B (polarity insensitive)
Input 2 A (polarity insensitive)
Input 2 B (polarity insensitive)
MAIN INTERFACE
(SW SELECTABLE)
* Do not leave floating, see par. 5.4.2 for connection 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;
for direct connections, connect the main interface cable shield to pin 1 of the 25-pin
connector.