3.4
Block
Diagram
3.5
Wire
Connections
1.
RS-232
2.
RS-485
CA
‐
0915
GND
RxD
TxD
CA
‐
0910N
TxD
RxD
GND
ZT
‐
2550
ZT
‐
2551
MCU
ZigBee
Module
LED
Display
EEPROM
Setting
Switch
RS
‐
232
Interface
RS
‐
485
Interface
Power
Circuit
+10
~
30
V
DC
D+D
-
D
-
D+
ICP
DAS,
ZT
‐
2550/ZT
‐
2551
User
Manual,
Version
1.3
Page
9
Copyright
@
2013
by
ICP
DAS
Co.,
Ltd.
All
Rights
Reserved.