B&B Electronics SPECTRE Manual do Utilizador descarregar pdf (Página 26)

B&B Electronics, Inc. SPECTRE User Manual

SPECTRE_User_Manual_2912m

www.bb-elec.com

www.bb-europe.com

Connector Pinout

Fig. 24: RS485/422 connector

RS-485 Mode

number

Signal mark

Description

Data flow direction

GND

Signal and supply ground

GND

Signal and supply ground

TxRx-

RS485 B (-)

Input/Output

TxRx+

RS485 A (+)

Input/Output

TxRx-

RS485 B (-)

Input/Output

TxRx+

RS485 A (+)

Input/Output

+12 V EXT

External power supply

+12 V EXT

External power supply

Table 12: Connector Pinout in RS-485 Mode

ATTENTION! The power supply is selected on the module board using

the jumpers.

Note: In RS-485 mode, pins 3 and 5 and pins 4 and 6 are internally shorted together.

If galvanic separation is required, the converter must use an external power supply.

Fig. 25: Connection to the router with data cable length less than 10 m

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B&B Electronics SPECTRE Manual do Utilizador Página 26