•
Schematic overview
5.2.2 Isolated RS-485 interface
To be used when a RS-232 device must be connected to the InduBox GSM M4.
•
Jumper settings
JP7 & JP8 on position ‘4’
•
Connection
PIN
RS-485
Level
1
+V
-
5~25 Vdc in OR +5V' out (JP6)
2
-
B
V.11
3
-
-
-
4
-
A
V.11
5
-
A
V.11
6
-
GND'
-
7
-
B
V.11
8
-
-
-
UART
5V
5V’
TxD
RxD
5V’
RXD
TXD
GND’
TTL/V.10
Level
Shift
Ethernet
ANT
Mains
N L1
Serial Interface
RJ-45 8 contacts
1 ………. 8
S
er
ia
l
Te
rm
JP3
JP6
JP7 JP8
2
4
Meter
Summary of Contents for InduBox GSM M4
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