User`s manual
SECTION 3: WIRING AND INSTALLATION T200 User's Manual
PAGE 3-87
Example of PC Interface
If an external signal is required to enable the transmitter of the adaptor, the Transmit Data pin from the PC can be used
as an enable pin. An adaptor can be wired to ensure that the transmitter is enabled when data is sent, thus actively
driving Highs on the RS485+ line.
If the RTS line is used by the adaptor, the following adaptor can be placed between the PC Communications port, and
the RS232/485 Converter. WinDrive uses only the Transmit Data, Receive Data, and Signal Ground Pins on the PC
Communications port.
RxD 2
TxD 3
Gnd 5
RTS 7
2 RxD
3 TxD
5 Gnd
7 RTS
PC ComPort
9-Way D-Type
(Female)
9-Way D-Type (Male)
to Plug into Converter
NC
Figure 3.53:- Adaptor between PC and RS232/RS485 Adaptor
For details of wiring for a specific RS232/RS485 adaptor, consult the data-sheet for the particular device. The
RS232/RS485 Adaptor recommended by MOOG for operation with WinDrive and the RMC/DMC and T200 is
PSM-EG-RS232/RS485-P/2D, PN2761392 from Phoenix Contact.
PHOENIX RS232
PC COM PORT SIGNAL
9-PIN D COMBICON
1 SHLD NC NC
2 RXD 2 5
3 TXD-RTS 3 & 7 4 & 7
5 GND 5 8
PHOENIX RS485
T200 RS485 SIGNAL
9-PIN D COMBICON
4 RS485 + 3 6
5 RS485 - 8 8
6 GND 2 - 7 4
Table 3.13:- Wiring of PSM-EG-RS232/RS485-P/2D
For further information consult MOOG applications engineering.