Bb-electronics 3PCI2 Manual de usuario descargar pdf (Pagina 57)

Documentation Number 3PCI2-0903 Manual Appendix A A –1

B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104

B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

Appendix A

: Jumper/Mode Settings

Set JP1 and JP2 Jumpers to match your Operating Mode.

Port 1 (bottom connector)

Port 1

Jumpers

RS-232 RS-422

4-Wire

RS-485

4-Wire

RS-485

2-Wire

JP1 Top 232

(Right)

422/485

(left)

422/485

(left)

422/485

(left)

JP1 Middle

-----

No effect

TX ENABLE

(right)

TX SD

(left)

TX SD

(left)

JP1 Bottom

-----

No effect

RX ENABLE

(right)

RX ENABLE

(right)

RX SD

(left)

Table A.1 – Port 1 (nearest bus) Jumper/Mode

Port 2 (top connector)

Port 2

Jumpers

RS-232 RS-422

4-Wire

RS-485

4-Wire

RS-485

2-Wire

JP2 Top 232 422/485

(left)

422/485

(left)

422/485

(left)

JP2 Middle

-----

No effect

TX ENABLE

(right)

TX SD

(left)

TX SD

(left)

JP2 Bottom

-----

No effect

RX ENABLE

(right)

RX ENABLE

(right)

RX SD

(left)

Table A.2 – Port 2 (nearest card top) Jumper/Mode

The top jumper sets either 232 or 422/485 DB9 connections.

Only the Top JP1 or JP2 position affects RS-232 mode

The middle jumper sets either 485 or 422 transmit enable.

The bottom jumper sets either 485 (half duplex) or receive enable.

Full duplex 4-wire modes must select RX ENABLE.

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