Connect Tech Xtreme/104 User’s Manual
Revision 0.05
13
Baud Rate Selection
The Xtreme/104 is capable of baud rates up to 460.8 Kbps (4X oscillator) or 115.2 Kbps (1X
oscillator). The Xtreme/104 RS-232 is capable of baud rates up to 230.4 Kbps (4X oscillator) or
115.2 Kbps (1X oscillator). These baud rate limits depend on whether you install a shorting
block across position 6 on the J1 or JB1 jumper block. Please refer to
for
the location of jumper block J1 or JB1. Please refer to
for a list of standard and
extended baud rates for the Xtreme/104 and Xtreme/104 RS-232.
Figure 5: Example of baud rate selection
Example
I/O address/IRQ/Clock
Select jumper block
J1/JB1
0
1
2
Clock select
3
4
5
6
7
jumper installed - 460.8 KBPS max (RS
230.4 KBPS max (RS
jumper not installed - 115.2 KBPS max
Position 7 is not av ailable
on the Xtreme/104 232
Table 2: Baud rates
Standard Baud
Rate
(J1/JB1 not jumpered)
Max. Baud Rate
(
J1/JB1 jumpered
)
50 200
75 300
150 600
300 1200
600 2400
1200 4800
2400 9600
4800 19.2K
7200 28.8K
9600 38.4K
19.2K 76.8K
38.4K 153.6K
57.6K 230.4K
115.2K 460.8K
*
* This baud rate is only possible with
RS-422/485 on the Xtreme/104
adapter.