PCI Quad 422/485 Card
Chapter 2 Hardware Configration
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8
Port Pinouts.
9 Pin D Connector
PIN 5 - GROUND (GND)
PIN 1 - TRANSMITTED DATA (TXD-)
PIN 6 - RECEIVED DATA (RXD-)
PIN 8 - CLEAR TO SEND (CTS-)
PIN 3 - REQUEST TO SEND (RTS-)
PIN 2 - TRANSMITTED DATA (TXD+)
PIN 4 - REQUEST TO SEND (RTS+)
PIN 7 - RECEIVED DATA (RXD+)
PIN 9 - CLEAR TO SEND (CTS+)
37 Way D Connector
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-
PIN19 - GROUND
PIN18 - CTS4+
PIN17 - CTS4-
PIN16 - RXD4+
PIN15 - RXD4-
PIN14 - GND3
PIN12 - RTS3-
PIN11 - TXD3+
PIN10 - TXD3-
PIN9 - CTS2+
PIN8 - CTS2-
PIN7 - RXD2+
PIN6 - RXD2-
PIN5 - GND1
PIN4 - RTS1+
PIN3 - RTS1-
PIN2 - TXD1+
PIN1 - TXD1-
PIN13 - RTS3-
Configuring the Card.
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.
RS485 Multiplex Jumper Settings.
The RS485 Multiplex jumper block, is shown below with default settings of no
jumpers present (both ports full duplex).
