Dataforth SCM9B-D192 Series Manual do utilizador - Página 7

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7 SCM9B-D192 USERS MANUAL

FACTORY RS-485 TERMINATION SETTINGS

Each SCM9B-D192 contains internal pin strips for enabling the internal

termination and biasing resistors. Each pc board is clearly marked with the

jumper designators adjacent to each row of pins. The jumper designators

are +1K, 220 and -1K. To enable any resistor, place a jumper over the

pins next to the required designator. The factory switch and jumper

settings are outlined below.

S C M 9 B - D 1 9 2 :

Baud Rate: 300 baud switch up.

RS-485 (J3):

Isolated RS-485 (J2):

Biasing Resistors: +1K, -1K jumpers installed.

Termination Resistor: 220 jumper installed.

Biasing Resistors: +1K, -1K jumpers installed.

Termination Resistor: 220 jumper not installed.