Impulse 7404 User Manual download pdf (Page 6)

Card Setup

Sealevel Systems COMM+4.PCI Page 3

Interface Mode Examples SW1 – SW4

Figure 1- Switches SW1- SW4, RS-422

Figure 2 - Switches SW1- SW4, RS-485 ‘Auto’ Enabled, with ‘No Echo’ and the

termination resistor in circuit.

Figure 3 - Switches SW1- SW4, RS-485 ‘Auto’ Enabled, with ‘Echo’ and no

termination resistor in circuit.

1 2 3 4

OFF

AT RT NE T

1 2 3 4

OFF

AT RT NE T

1 2 3 4

OFF

AT RT NE T

1 2 3 4 5 6 7 8 9 10 11 ... 19 20

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Impulse 7404 User Manual Page 6