Operations Manual
PCCOM PCI 8 port universal RS232 card
DECISION Computer International
8
1. Select External Clock or Internal Clock
JP2
3 .
2 .
1 .
The JP2 is used to select external clock or internal clock; to select
external clock, please short pin 1 and 2, to select internal clock,
please short pin 2 and 3. When internal clock is selected, the
communication speed is divided by 4.
.
Pin
Mode
Short 1,2 External Clock
Short 2,3 Internal Clock
