1. Before Using the Product
COM-1(PM), COM-1D(PM)
1
1.
Before Using the Product
This chapter provides information you should know before using the product.
About the PC Card
This PC card is a PCMCIA 2.0/JEIDA 4.1 compliant serial I/O card for performing RS-232C and RS-
422A/485 serial communications with external devices.
Use the card in a PCMCIA 2.0/JEIDA 4.1 or later (including PC Card Standard) PC card slot.
The < COM-1(PM) > has one RS-232C serial ports per card.
The < COM-1D(PM) > has two RS-422A/485 serial ports per card.
You can use the standard COM driver software (COM Setup Disk) supplied with the PC card to access
the serial ports as standard Windows or Linux COM ports.
Features
-
As the card supports Plug&Play, the IO address, IRQ, and other resource settings are set
automatically.
-
Maximum communication speed = 115,200bps.
-
The baud rate can be set independently for each channel, by software.
-
Each channel is equipped with separate 16-byte FIFO buffers for transmit and receive.
-
Up to two cards can be installed on one PC.
-
Driver software is supplied to allow the serial ports to be used as standard Windows or Linux COM
ports.
-
The data transmission mode (full or half duplex) setting can be changed using a switch.
(COM-1D(PM))
-
The card includes the 100
Ω
terminating resistors required for a party line (multi-drop) connection.
The resistors can be inserted in each signal line by setting a switch. (COM-1D(PM))
-
All the RS-422A/485 signal lines are electrically isolated. (COM-1D(PM))
-
You can use the PC card attachment to protect the PC card and cable socket.