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Moxa TCC-100/100I User's Guide
Isolation Block Diagram
D a t a
I n p u t
+ 5 V
+
V +
Local Power
1 2 - 3 0 V D C
Typical Applications
RS-485 Application
A typical RS-485 application for TCC-100/100I is depicted in the following
figure. In this scenario, two TCC-100I units are used to connect two PCs to an
RS-485 network. The third TCC-100I is used to connect the PLC—which is
designed for the RS-232 interface—to the RS-485 network. In this way, both PCs
are able to interact with the PLC and the LCD Display.
RS-232
PC
2-8
+ 5 V
O p t i c a l
I s o l a t o r
-
V
R
T
MOXA
TCC-100I
R e g u l a t e d
P o w e r S u p p l y
T
Tx+(B)
Tx (A)
Rx+(B)(Data +)
Rx (A)(Data )
RTS+(B)
RTS (A)
CTS+(B)
CTS (A)
SGND
V+
DC9~30V
V
R
MOXA
TCC-100I
RS-485
Network
T
Tx+(B)
Tx (A)
Rx+(B)(Data +)
Rx (A)(Data )
RTS+(B)
RTS (A)
CTS+(B)
CTS (A)
SGND
V+
DC9~30V
V
R
MOXA
TCC-100I
+ 5 V
+ 5 V
RS-232
LCD Display
RS-232
PLC
D a t a
O u t p u t
PC
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