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AD-4402 Page 89
RS-422 Connections
Settings RS-422 [03 f-11] [1]
Address Number 0 [03 f- 8] [0].
RS-485 4 Wire Connections
Settings RS-422 [03 f-11] [1]
Address Number [03 f- 8] [without 0].
Host computer
RDA 3
RDB 4
SG 5
FG 6
SDA 1
SDB 2
A
D-4402 TERMINATOR
ON
OFF
Terminator resistor
100 ~ 120
Ω 1/2W
Turn on terminator
switch
The host computer may include
the terminator resistor.
The host computer may have
inverse polarity terminals.
Use twist-pair wire.
Use shield cable, if it needs.
RDA 3
RDB 4
SG 5
FG 6
SDA 1
SDB 2
A
D-4402
No.1
Host computer
Terminator resistor
100 ~ 120
Ω 1/2W
The host computer may
include the terminator
resistor.
The host computer may have
inverse polarity terminals.
Use twist-pair wire.
Use shield cable, if it needs.
TERMINATOR
ON
OFF
A
D-4402
No.32
TERMINATOR
ON
ONON
ON
OFF
Connect terminator resistor
at a indicator where is
longest distance from the
host computer.
RD
A
RDB
SG
FG
SDA
SDB
RD
A
RDB
SG
FG
SDA
SDB
RD
A
RDB
SG
FG
SDA
SDB