ICS Advent PCI-ICOM485/4, Product Manual

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Manual Number: 00650-148-1 Page 5
Input/Output Connections
The PCI-ICOM485/4 (/2) uses a 37-pin DBM connector. To connect to the serial device/s there
will be the DB37 connector on the card and a “spider” cable providing two or four DB9 female
connectors.
To ensure that there is minimum susceptibility to EMI and minimum radiation, it is important that the
card mounting bracket be properly screwed into place and that there be a positive chassis ground.
Also, proper EMI cabling techniques (cable connect to chassis ground at the aperture, shielded
twisted-pair wiring, etc.) be used for the input/output wiring.
Data Cable Wiring- 37 Pin Connector
Signal Connector Pin Signal Connector Pin
COMA Tx+/Rx+ 37 COMC Tx+/Rx+ 27
COMA Tx-/Rx- 19 COMC Tx-/Rx- 9
COMA Gnd 18 COM C Gnd 8
/Rx+ 32 COMD Tx+/R+ 21
COMB Tx-/Rx- 14 COMD Tx-/Rx- 3
COMB Gnd 13 COMD Gnd 2
PIN Connections
COM Port A-D RS-485 Signals
Pin 1
Pin 2
Tx and Rx+
Pin 3 Tx and Rx+
Pin 4
Pin 5
GND Ground
Pin 6
Pin 7
Pin 8
Pin 9