1.3
USB-RS485
converter
For information on purchasing the optional USB-RS 485 converter MODEL 3720-
06-20, contact your distributor or agent. If you wish to prepare your own USB-RS
485 converter, please refer to the following instructions.
Connection method
The following is the connection method between this product, the USB-RS 485 converter, and
a PC.
How to connect RS485 terminal and USB- RS485
converter
3720-06 Main unit
USB-RS485 converter
pref
ace
RS485
terminal
pref
ace
RS485
converter
1
GND
1
GND
2
B
2
T/R-.
3
A
3
T/R
+
USB
RS485
PC
USB-RS485
When in open use, insulate unused terminals.
Summary of Contents for 3720-06
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