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Port Pinouts.
Configuring the Card.
RS485 Multiplex Jumper Settings.
PCI Quad 422/485 Card
9 Pin D Connector
PIN 6 - RECEIVED DATA (RXD-)
PIN 7 - RECEIVED DATA (RXD+)
PIN 8 - CLEAR TO SEND (CTS-)
PIN 9 - CLEAR TO SEND (CTS+)
37 Way D Connector
PIN19 - GROUND
PIN18 - CTS4+
PIN17 - CTS4-
PIN16 - RXD4+
PIN15 - RXD4-
PIN14 - GND3
PIN13 - RTS3-
PIN12 - RTS3-
PIN11 - TXD3+
PIN10 - TXD3-
PIN9 - CTS2+
PIN8 - CTS2-
PIN7 - RXD2+
PIN6 - RXD2-
PIN5 - GND1
PIN4 - RTS1+
PIN3 - RTS1-
PIN2 - TXD1+
PIN1 - TXD1-
PCI cards require no hardware configuration for IRQ and address allocation -
this is done automatically at start up by the PC. However, the PCI quad opto
RS422/485 has four sets of jumpers for configuration of RS485 multiplex modes
for each port, how to configure these jumpers is shown below.
The RS485 Multiplex jumper block, is shown below with default settings of no
jumpers present (both ports full duplex).
PIN 1 - TRANSMITTED DATA (TXD-)
PIN 2 - TRANSMITTED DATA (TXD+)
PIN 3 - REQUEST TO SEND (RTS-)
PIN 4 - REQUEST TO SEND (RTS+)
PIN 5 - GROUND (GND)
PIN37 - GND4
PIN36 - RTS4+
PIN35 - RTS4-
PIN34 -TXD4+
PIN33 - TXD4-
PIN32 - CTS3+
PIN31 - CTS3-
PIN30 - RXD3+
PIN29 - RXD3-
PIN28 - GND2
PIN27 - RTS2+
PIN26 - RTS2-
PIN25 - TXD2+
PIN24 - TXD2-
PIN23 - CTS1+
PIN22 - CTS1-
PIN21 - RXD1+
PIN20 - RXD1-
Chapter 2 Hardware Configration x 8
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