Omron C-series manual Host Link Systems, AL004-PE as shown below

Host Link SystemsSection 4-2

4-2	Host Link Systems
		Link Adapters are used in Host Link Systems for branching and for converting to
		the type of cable required by the host computer.
Example 1		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.

Host computer

RS-232C(15 m max.)

Link Adapter

AL004-(P)E

	RS-422
		RS-422			RS-422
Link Adapter			Link Adapter
AL001			AL001
	RS-422 branch line			RS-422 branch line
	(10 m max.)			(10 m max.)
CPU Rack with			CPU Rack with
Host Link Unit			Host Link Unit

Link Adapter		RS-422
AL001
	RS-422 branch line
	(10 m max.)
CPU Rack with			CPU Rack with
Host Link Unit			Host Link Unit

Example 2	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)

Optical fiber (APF/PCF)

C-Series PC	C-Series PC	C-Series PC	C-Series PC
with	with	with	with
Optical Host	Optical Host	Optical Host	Optical Host
Link Unit	Link Unit	Link Unit	Link Unit

C-Series PC

with

Optical Host

Link Unit

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