Moxa CA-104-T [10/70] Ca series pc 104 hardware installation

CA Series PC/104 Hardware Installation

2-4

For example, an I/O base address of 0×180 should be set as follows:

A3 A4 A5 A6 A7 A8 A9 Hex

ON ON ON ON off off ON 0×180

= on, = off

The other serial ports will be set automatically to 0×188, 0×190, 0×198, etc.

Termination Resistor

Onboard termination resistors can be activated individually for each serial port using jumpers. For CA-114 and

CA-134I, use JP1 through JP4; for CA-132 and CA-132I, use JP1 and JP2. JP1 corresponds to serial port 1.

Short the jumper pins to activate the termination resistor; leave the jumper pins open to bypass the

termination resistor.

Interrupt Vector

Use DIP switch SW2 to set port 1’s interrupt vector. The default interrupt vector is 0×1C0, with SW2 set as

follows:

A3 A4 A5 A6 A7 A8 A9 Hex

ON ON ON off off off ON 0×1C0

= on, = off

Serial Interface

For the CA-114, use SW1, SW2, and SW3 to select the serial interface as follows:

Interface RS-232 RS-422

RS-485

SW1 – – ON OFF

SW2 – ON OFF OFF

SW3 ON OFF OFF OFF