Connect Tech JB2 Uživatelský manuál stáhnout pdf (Strana 22)

Xtreme/104 Opto User’s Manual, Connect Tech Inc.

Revision 0.05 22

Figure 11: Line bias and termination jumper setting example

In this example, Port 1 is set for half duplex RS-422/485, terminated and

biased on CTS ± and RxD ±.

Port 2 is set for full duplex RS-422/48, bias/termination on RTS ±, TxD ±,

CTS ±, and RxD ±.

Port 3 is set for multi-drop slave RS-422/485 and no termination.

Port 4 is set for RS-232 and therefore no termination.

JB4 JB5

JB6

JB7

PORT 1

PORT 2

PORT 3 PORT 4

Note: Rev A & B Xtreme/104 Opto adapters do not have positions H

& I on jumper blocks, JB4, JB5, JB6, and JB7

Jumper Legend

(Rev. A & B adapters)

A = TxD control

B = RS-232/RS-422/485 select

C = RxD control

D = RTS terminator

E = TxD terminator

F = CTS terminator

G = RxD terminator

(Rev. C & later adapters)

A = TxD control

B = RS-232/RS-422/485 select

C = RxD control

D = RTS terminator

E = TxD terminator

F = RxD terminator & bias

G = RxD terminator & bias

H = CTS terminator & bias

I = CTS terminator & bias

If you want to terminate half duplex RS-422/485 ports, jumper position G (Rev. A

& B adapters) or positions F and G (Rev. C adapters and later) on the

corresponding jumper block.

To terminate full duplex and multi-drop slave ports, jumper positions D, E, F, G

(Rev. A & B adapters) or D, E, F, G, H, and I (Rev. C adapters and later), on the

corresponding jumper block.

For RS-232 ports do not jumper positions D, E, F, G, H, and I on the

corresponding jumper block.

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