Security Command R500 Spécifications Page 124

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7 – Configuring Controllers
106 R400
4-wire configuration
To use the Stallion EasyConnection board with a 4-wire RS-485
configuration, do not select Echo (Required for Stallion RS-485 ports) on
the serial port tab for the channel properties in Quick Builder.
2-wire configuration
To use the Stallion EasyConnection board with a 2-wire RS-485
configuration, select Echo (Required for Stallion RS-485 ports) on the
serial port tab for the channel properties in Quick Builder.
Figure 7.4 RS-485 Wiring Diagram for 4-wire Configuration
15
17
19
25
3
18
Tx +ve
Tx -
ve
Rx +ve
Rx -ve
Stallion Board Lines RS-485 4-wire device
To other RS-485 devices
Figure 7.5 RS-485 Wiring Diagram for 2-wire Configuration
Stallion Board Lines
15
17
19
25
3
18
RS-485 2-wire device
To other RS-485 devices
Tx /Rx +ve
Tx /Rx -ve
plscpcg.book Page 106 Monday, May 28, 2001 10:11 AM
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