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10
RS-485 Communication Interface Connection
The RS-485 converter/adapter must be configured for: multidrop, 2-wire, half
duplex mode (see
). The transmitter circuit must be enabled by TD or
RTS (depending on which is available on the converter/adapter). Settings for
the receiver circuit should follow the selection made for the transmitter circuit
in order to eliminate echo.
RS-485 A line T(-) or R(-) ............. pin 2 on 3-pin Audio-connector, middle
section or "tip" DPM (RX-), (WHITE
wire)
RS-485 B line T(+) or R(+) ........... pin 3 on 3-pins Audio-connector, the
"ring" section DPM (TX+), (RED wire)
RS-485 GND (if available) ............ pin 1 on 3-pin Audio-connector, the
“sleeve” section DPM (GND), (Shield
wire)
Each DPM ordered with RS-485 interface option is supplied with a default
3-foot length of communication cable (AALBORG P/N: CBL-A485) Stereo
3.5 mm plug to stripped wires.
If custom length cable is required, it can be assembled using the connection
diagram shown in
Figure 3
:
Содержание DPM Series
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