Matrix-orbital GLC24064 Manual do Utilizador descarregar pdf (Página 12)

NOTE The connector provided does not allow access to the middle two pins which are

used for I

C communications. If this functionality is required, Matrix Orbital suggests

wiring a suitable connector.

2.1.3 Wide Voltage with Efﬁcient Switching Power Supply (VPT)

Power is applied to the white or brown four pin SIP connector as follows;

Table 3: Connector Pinout

Pin 4 Gnd

Pin 3 SDA (I

C data) / Rx

Pin 2 SCL (I

C clock) / Tx

Pin 1 +7 - 30V DC

If the sole data source is via RS-232, the data input is via the DB-9 connector. In this case pins 2 and 3

are not used.

NOTE Do not use this cable unless the display module has the "Wide voltage range",

option (option V). Use of the 12 volt power cable with 5 volt modules will damage the

module.

The 12 volt power cable is designed for use with wide voltage range display modules mounted in a PC.

Wiring required for the 12 volt power connector is shown in the Figure below.

Figure 9: Wiring for 12 Volt Modules

Matrix Orbital can supply an adapter cable designed for use with the display module when it’s installed

in a PC, if the user would like to modify cable wiring.

Matrix Orbital GLC24064 8

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Matrix-orbital GLC24064 Manual do Utilizador Página 12