ATEN IC485SN, Руководство пользователя

Страница: 10 / 19

- 10 -
2. Point-to-Point 4 Wire Half Duplex

Point-to-Point Half Duplex uses straight through 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 TxDTR/RTS,
RxDSR/ON.
Note: TxDTR/RTS, RxDSR/ON transmitting/receiving mode,
involves a straight-through Data+ , Data- , Busy+ ,
Busy- wiring scheme. See the TxDTR/RTS, RxDSR/
ON schematic for details.
4
2
DB-25
DB-25
RJ-11 RJ-11
Connect
to PC#1’s
Com Port
5
2
3
5
4
3
DATA+
DATA-
BUSY+
BUSY- DATA+
DATA-
BUSY+
BUSY-
Connect
to PC#1’s
Com Port