Kontron PCI-COM-8ULP, User Manual

Page: 17 / 38

PCI-COM-8ULP User’s Guide page 17
The receiver is, therefore, normally enabled, then disabled during RS485 transmissions,
and then re-enabled after transmission is completed (adjustable from zero to plus one
character transmission time). The card automatically adjusts it's timing to the baud rate
of the data. (NOTE: Thanks to the automatic control feature, the card is ideal for use in
Windows applications)
Block Diagram
P
C
I
B
U
S
VH
D
C
I 6
8 PI
N
C
O
N
N
EC
T
O
R
WITH
AUTO-RTS
CIRCUITRY
(Only one serial channel shown)