Datalogic Scanning STARGATE Manual do Utilizador descarregar pdf (Página 20)

CONNECTIONS

CAUTION

To configure the STARGATE™ base station use the cable and the

adapter listed in par. 3.1. For further details see par. 4.3.

The RS485 bus system and the eventual power are propagated from one base

station to another through a cable having the following minimum characteristics:

− 2 twisted pair AWG 24 wire

− Impedance: 120 Ω

− Propagation velocity: 66%

− Capacitance between two connectors: 49 pF/m

− Conductor resistance: 0.8 Ω/m

− Maximum length: 1200 m

Pinout

The custom cables to be used in the RS485 connection have two RJ45 connectors

(see Figure 5).

The cable connecting the first base station to the RS232/RS485 converter has the

following pinout:

RJ45

CONVERTER

side

STARGATE™

side

Twisted Pair

RS485+

RS485-

3 5

VDC-

Figure 9 - Converter/STARGATE™ Custom Cable Pinout

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 39 40

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