SETTING UP SERIAL NETWORKING
B3000-B Serial Brains User’s Guide
4
SETTING UP SERIAL NETWORKING
The
B3000-B
brain can be connected to a
SNAP PAC S-series or
mistic
controller, or to a PC
equipped with an Opto 22 PCI-AC48 adapter
card, which provides an RS-485 port.
The
B3000-B-OMUX
brain can be connected
to a PC with an Opto 22 PCI-AC48 adapter card.
For both brains,
follow these steps to set up
serial networking:
1.
Attach an RS-485 serial cable to the serial
port. (See
for cable
recommendations).
2.
Follow the wiring diagrams beginning on
for the serial network.
3.
Rotate the baud rate switch to set the
desired baud rate, as follows:
NOTE: Due to timing tolerances, some baud rates may not work with some compatible devices.
Baud rate
switch
Serial
connector
Termination
switches
Address upper
IRQ LED
Reset switch
TX/RX LED
STAT LED
B3000-B or B3000-B-OMUX
Pin 1
Address lower
8
9
A
B
C
D
E
F
7
6
5
4
3
2
1
0
Baud Rate Switch
Baud rate
Switch
position
Baud rate
Switch
position
(Reserved)
F
4800 bps
7
* 230400 bps
E
2400 bps
6
115200 bps
D
1200 bps
5
76800 bps
C
600 bps
4
57600 bps
B
300 bps
3
38400 bps
A
(Reserved)
2
19200 bps
9
(Reserved)
1
9600 bps
8
(Reserved)
0
* Older Opto 22 controllers do not support this setting,
but it is supported by SNAP PAC S1s and S2s.
