Bb-electronics MAP450D Manuel d'utilisateur télécharger pdf (Page 9)

2.1. RS-232 (Interactive & Block modes)

Interactive and Block modes support the 3-wire RS-232 configuration with TXD,

RXD and signal common. The cable requires an overall shield to protect against

electrical noise. Xon and Xoff can be used for communication handshaking.

3-Wire RS-232

Host Controller MAP450D Terminal Block

TXD

Pin 9 - RXD

RXD

Pin 10 - TXD

Signal Ground

Pin 8 - Return

2.2. RS-422/485 (Interactive & Block modes)

Interactive and Block modes support the 3-wire and 5-wire RS-422/485

configurations. The 3-wire configuration has both transmit and receive on the same

pair of wires plus a signal common. The 5-wire configuration has differential signal

pairs for transmit and receive plus a signal common. In both configurations the

signal pairs must be twisted and surrounded by an overall shield.

NOTE: When using 3-wire RS-422/485, Jumper JP4 must be in position “B”.

Refer to section 2.4 for instructions.

3-Wire RS-422/485

Host Controller MAP450D Terminal Block

TXD+ & RXD+

Pins 4 & 6 - RXD+ & TXD+

TXD- & RXD-

Pins 5 & 7 - RXD- & TXD-

Signal Ground

Pin 8 - Return

5-Wire RS-422/485

Host Controller MAP450D Terminal Block

TXD+

Pin 4 - RXD+

TXD-

Pin 5 - RXD-

RXD+

Pin 6 - TXD+

RXD-

Pin 7 - TXD-

Signal Ground

Pin 8 - Return

INSTALLATION MANUAL 9

1010-0046A, REV 00

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Bb-electronics MAP450D Manuel d'utilisateur Page 9