Switch Sw2 - Allen-Bradley Bulletin 1203 Series User Manual

2–6 Installation
1203–5.5 September 1995

Switch SW2

Switch SW2 is used to select:
baud rate
parity
number of stop bits
point–to–point or multi–drop
checksum mode (CRC or BCC)
O
F
F
O
N
8 7 6
Stop bits
Checksum mode
Use SW2–3, SW2–2, and SW2–1 to select the baud rate:
Switch Value
(Decimal)
0
O
–
1
O
–
2
O
–
3
O
–
4
O
–
5
O
–
6
O
–
7
O
–
"
Note: For DH–485, 1200, 2400, 9600, and 19200 are the allowed
baud rates. Selecting any other baud rate will cause the module to
indicate a fault. The module cannot operate in this state.
SW2
5 4 3 2 1
Parity Baud rate
setting selection
Point-to-point/multi-drop
SW2 Baud Rate
110
8 7 6 5 4 3 2 1
300
8 7 6 5 4 3 2 1
600
8 7 6 5 4 3 2 1
1200
8 7 6 5 4 3 2 1
2400
8 7 6 5 4 3 2 1
4800
8 7 6 5 4 3 2 1
9600
8 7 6 5 4 3 2 1
19200
8 7 6 5 4 3 2 1
AB0399A