ATEN IC485SN, Руководство пользователя

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Operating Modes
The IC-485SN supports three operating modes: Point-to-Point;
Multidrop; and Simplex. Point-to-Point and Multidrop can be
configured for Full or Half Duplex. Each of the operating modes
is explained below.
Point-to-Point
A Point-to-Point configuration is one in which two devices,
located at two different places are linked for communication by a
pair of IC-485SN units. There are two configurations: Point-to-
Point Full Duplex, and Point-to-Point Half Duplex.
1. Point-to-Point 4 Wire Full Duplex

Point-to-Point Full Duplex uses reverse four wire cabling,
as shown in the diagram below.

For both IC-485SN units, set SW1 to DCE or DTE
depending on what type of device the IC-485SN will plug
into (if it will plug into a DCE device, configure it for DTE,
and vice versa).

For both IC-485SN units, set SW2 to TxON, RxON.
4
2
DB-25
DB-25
RJ-11 RJ-11
Connect
to PC#1’s
Com Port
5
2
3
5
4
3
TX+
TX-
RX+
RX- TX+
TX-
RX+
RX-
Connect
to PC#1’s
Com Port