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CA Series PC/104
ON
ON
ON
ON
ON
off
off
off
off
off
off
off
For example, an I/O base address of 0×180 should be set as follows:
A3
ON
The other serial ports will be set automatically to 0×188, 0×190, 0×198, etc.
Rotary Switch(For CB Series)
A rotary switch on the board makes it easy to set the appropriate signals, particularly when installing multiple
PC/104-Plus modules in the same unit. The rotary switch, which looks like a clock, provides a bidirectional path
with no signal propagation delay. The first module on the stack should be set to CLK0, the second to CLK1, etc.,
to eliminate clock skew between modules.
Termination Resistor
Onboard termination resistors can be activated individually for each serial port using jumpers. With regard to
the CA Series: 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. For the CB Series, use jumpers JP1 through JP4. 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 for CA Series
Use DIP switch SW2 to set port 1's interrupt vector. The default interrupt vector is 0×1C0, with SW2 set as
follows:
A3
ON
ON
ON
ON
ON
ON
ON
ON
off
off
off
off
off
ON
ON
off
ON
off
off
off
off
off
off
off
off
A4
A5
ON
ON
A4
A5
ON
ON
ON
ON
ON
off
off
off
off
off
off
off
off
off
ON
ON
ON
ON
ON
ON
off
ON
off
off
off
off
A6
A7
ON
off
= on,
= off
A6
A7
off
off
2-5
Hardware Installation
off
off
off
off
off
off
off
off
off
off
off
off
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
off
A8
A9
off
ON
A8
A9
off
ON
0×300
0×380
0×3C0
0×3E0
0×3F0
0×3F8
0×008
0×018
0×038
0×078
0×0F8
0×2F8
Hex
0×180
Hex
0×1C0
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