Справочник Пользователя для IBM LPCI-COM232-4

 

  
The card’s Serial Communications card uses eight individual 9-pin connectors, provided via a spider 
cable from a 68-pin HVDCI D-connector. 
  
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. 
 

 

 

 

 

 

 

 

Ch x - 1 

DCD 

RX-/TX- 

1

RX- 

Ch x - 2 

RX 

TX+/RX+ 

1

TX+ 

Ch x - 3 

TX 

TX-/RX- 

1

TX- 

Ch x - 4 

DTR 

 

 

Ch x - 5 

Gnd 

Gnd 

Gnd 

Ch x - 6 

DSR 

 

 

Ch x - 7 

RTS 

 

 

Ch x - 8 

CTS 

 

 

Ch x - 9 

RI 

RX+/TX+ 

1

RX+ 

 

 Connector Pin Assignments

1

 RS485 (2 wire) requires the installation of jumpers on the card to properly connect these pins. When 

using the spider cable, the appropriate DB 9 connectors will have pin 1 connected to pin 3 and pin 2 is 
connected to pin 9. 

Manual LPCI-COM-8SM 

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