MATRIX 210™ REFERENCE MANUAL6055 25-PIN CABLE ELECTRICAL CONNECTIONS5.1 25-PIN CONNECTORThe Matrix 210™ reader is equipped with a 25-pin male D-sub connector for connection tothe power supply, serial interfaces and input/output signals. The details of the connector pinsare indicated in the following table:1325141Figure 61 - 25-pin Male D-sub Connector25-pin D-sub male connector pinoutPin Name Function13, 9 Vdc Power supply input voltage +25, 7 GND Power supply input voltage -1 CHASSIS Cable shield connected to chassis18 I1A External Trigger A (polarity insensitive)19 I1B External Trigger B (polarity insensitive)6 I2A Input 2 A (polarity insensitive)10 I2B Input 2 B (polarity insensitive)8 O1+ Output 1 +22 O1- Output 1 -11 O2+ Output 2 +12 O2- Output 2 -20 RX Auxiliary RS232 RX21 TX Auxiliary RS232 TX23 ID+ ID-NET™ network +24 ID- ID-NET™ network -14, 15, 16, 17 NC Not ConnectedPin Name RS232 RS485Full-DuplexRS485Half-Duplex2MAIN INTERFACE(SW SELECTABLE)TX TX+ RTX+3 RX *RX+4 RTS TX- RTX-5 CTS *RX-* 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 braidshorter than 100 mm;for direct connections, connect the main interface cable shield to pin 1 of the 25-pinconnector.