Chapter 5: selecting dipswitch settings - pg 9 – B&B Electronics 232SPS2 User Manual
Page 7
232SPS2-3903 Manual
Chapter 5: Selecting Dipswitch Settings
9
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5104
CHAPTER 5: SELECTING DIPSWITCH SETTINGS
The 232SPS2 is set up using an eight-position dipswitch. In
order for the 232SPS2 to function properly, it must be set up to
match your system's requirements. The following parameters on the
232SPS2 are set on the dipswitch: converter direction, baud rate,
flow control, number of data bits, and the type of parity. Each of the
parameters are briefly described below. For specific parameter
settings, refer to Table 5.1.
Converter direction - Can operate as a parallel to serial
converter or as a serial to parallel converter. The direction is
set by dipswitch position 8.
Baud rate - Can be set from 1200 to 115.2k baud. The baud
rate is determined by dipswitch positions 1-3.
Flow control - Can be set for DTR control or XON/XOFF
control. The type of flow control used is determined by
dipswitch position 4.
Data bits - Can be set for 7 or 8 data bits. The number of
data bits is determined by dipswitch position 5.
Parity - Can be enable or disabled by dipswitch position 6. If
parity is enabled, dipswitch position 7 determines whether
the parity is even or odd.
10
Chapter 5: Selecting Dipswitch Settings
232SPS2-3903 Manual
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5104
Table 5.1
Example #1 - Parallel to Serial Mode, hardware handshaking, 9600
baud, 8 data bits, no parity
Dipswitch position settings for Example #1 ("X" = don't care)
1
2
3
4
5
6
7
8
ON
ON OFF ON OFF OFF X
ON
Example #2 - Serial to Parallel Mode, XON/XOFF flow control, 2400
baud, 7 data bits, odd parity
Dipswitch position settings for Example #2
1
2
3
4
5
6
7
8
ON
OFF OFF OFF ON ON ON OFF
Setting DIP
SWITCH
POSITION
1
2
3
4
5
6
7
8
1200 Baud
OFF
OFF
OFF
X
X
X
X
X
2400 Baud
ON
OFF
OFF
X
X
X
X
X
4800 Baud
OFF
ON
OFF
X
X
X
X
X
9600 Baud
ON
ON
OFF
X
X
X
X
X
19.2K Baud
OFF
OFF
ON
X
X
X
X
X
38.4 Baud
ON
OFF
ON
X
X
X
X
X
57.6K Baud
OFF
ON
ON
X
X
X
X
X
115.2K Baud
ON
ON
ON
X
X
X
X
X
XON/XOFF
X X X
OFF
X X X X
DTR
control
X X X
ON
X X X X
8
Data
bits X X X X
OFF
X X X
7
Data
bits X X X X
ON
X X X
No
parity X X X X X
OFF
X X
Parity
enable
X X X X X
ON
X X
Even parity
X
X
X
X
X
X
OFF
X
Odd parity
X
X
X
X
X
X
ON
X
Serial to Par.
X
X
X
X
X
X
X
OFF
Par. to Serial
X
X
X
X
X
X
X
ON