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20 RS-232/RS-485/422 Option

Xtreme/104 Opto User's Manual, ver. 0.00

Full Duplex Mode

By making sure that there are no jumpers on positions A and C of

jumper blocks JB4, JB5, JB6 and JB7 you can run the individual

RS-485/422 ports in full duplex mode. In this mode, TxD & RxD

are active all the time. This mode is typically used in point to

point situations much like RS-232.

Figure 1 shows the locations of jumper block JB4, JB5, JB6, JB7

and J1, J2.

Example

The example below shows the settings on JB4, JB5, JB6, and

J1, J2 where RS-485 ports 1, 2 and 3 are set for full duplex

mode. Port 4 is RS-232 and therefore is not set for full duplex

JB4

JB5

JB6

JB7

Jumper is

off J1

Jumper is

off J2

Technical Note:

J1 controls ports 1 and 2 and J2 controls ports 3 and 4. If both

ports 1 and 2 are set for full duplex then J1 should not be

jumpered. If both ports 3 and 4 are set for full duplex then J2

should not be jumpered.

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Connect Tech JB2 Manual de usuario Pagina 26