IAI America REXT - Manual (Page 290)


Part 2 Startup Chapter
Chapter 2 Mounting and Installation
266
Part 2 Startup Chapter
(3) Nodes can be connected in one of the following two ways. Both methods can be used together in a single network.
[1] T-branch method Use a T-branch tap, etc.
[2] Multi-drop method Use a multi-drop connector to branch the line directly at the node.
(4) Communication power (24 VDC) must be supplied to each node via a 5-wire cable.
(5) A terminal resistor must be installed on both ends of a trunk line.
The Gateway R unit (RGW-DV) does not come with a terminal resistor.
Connect Omron’s terminal-block terminal resistor (121 : r 1 %, 1/4 W) or T-branch tap with terminal resistor (121 : r
1%, 1/4 W), or other resistor of the same specification, directly between the white and blue wires at the communication
connector.
(6) The baud rate is limited by the length of the network (total branch line length, maximum network length).
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