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Host Link Systems
4-2
Host Link Systems
Example 1
Host computer
RS-232C(15 m max.)
Link Adapter
AL004-(P)E
RS-422
Link Adapter
AL001
RS-422 branch line
(10 m max.)
CPU Rack with
Host Link Unit
Example 2
Optical fiber (APF/PCF)
C-Series PC
with
Optical Host
Link Unit
Link Adapters are used in Host Link Systems for branching and for converting to
the type of cable required by the host computer.
A Wired Host Link System can be connected using Link Adapters AL004-(P)E
and AL001 as shown below. Link Adapter AL004-(P)E is used to convert be-
tween RS-232C and RS-422 cable. Link Adapter AL001 is used for branching.
RS-422
Link Adapter
AL001
RS-422 branch line
(10 m max.)
CPU Rack with
Host Link Unit
Optical Host Link Systems can be connected in series using Link Adapter
AL004-(P)E as shown below.
Host computer
RS-422 or RS-232C
Link Adapter
AL004-(P)E
Optical fiber (APF/PCF)
C-Series PC
with
Optical Host
Link Unit
RS-422
Link Adapter
AL001
RS-422 branch line
(10 m max.)
CPU Rack with
Host Link Unit
.
C-Series PC
C-Series PC
with
with
Optical Host
Optical Host
Link Unit
Link Unit
Section
RS-422
CPU Rack with
Host Link Unit
C-Series PC
with
Optical Host
Link Unit
4-2
19
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