
MICRO 200 BW 0-10 & 0-100 NTU (05/05)
Rev. 3.4
Page 42
UNITS
INTERVENING
LAST
VOLTAGE
RS232
1ST OR HUB
VOLTAGE
RS232
1845
TXD
S
H
I
E
L
D
GRD RXDRXDGRD
D
L
E
I
H
S
TXD
TXD
GRD
RXD
CPU
HOST
5481
ADDRESS #NADDRESS #1
OR STAR
"BUS" OR "BACKBONE"
Figure 24
RS-232 Voltage Connection
Figure 25
RS-485 Connection
UNITS
INTERVENING
RS485
RS485
CPU
HOST
RS485
GRD
G
R
D
G
RD
G
R
D
ADDRESS #1
ADDRESS #N
1ST OF HUB
OR STAR
LAST
(SHIELD)
A
A
A
A
A
A
B
B
B
B
B
B
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