Matrix-orbital GTT70A Manuel d'utilisateur télécharger pdf (Page 10)

GTT70A Hardware Manual 6

4.2 Extended Serial Communication/Power Header

The communication/power header provides an interface for the two most common GTT70A protocols:

RS232 and TTL. With the ability to connect to a PC serial port or microcontroller and optional hardware

flow control, this is the most versatile header available on the GTT70A.

Figure 9: Extended Communication/Power Header

Table 4: Extended Communication/Power Pinout

Function

RTS

CTS

Gnd

Vcc

Voltage is applied through pins one and four of the header, please reference electrical specifications

before applying power. Pins two and three are reserved for serial transmission using either RS-232/TTL

levels, depending on what model has been ordered. Finally, pins five and six are used for optional

hardware flow control. The Serial Molex 22-04-1061 style header used can be mated to a number of

connectors, including a 22-01-1062.

4.3 Mini-B USB Communication Connector

USB protocol offers an easy connection to any host computer. The simple and widely available protocol

can be accessed using the familiar Mini-B USB connector to fulfill communication needs.

Figure 10: Mini USB Connector

Table 5: Mini USB Pinout

Function

Vcc

D-

D+

Gnd

The USB model can be connected to virtually any USB host using the appropriate cable; however,

additional power must be supplied through the alternate power header. Most commonly used with a

PC, this connection creates a virtual com port that offers a simple power solution with a familiar

communication scheme.

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Matrix-orbital GTT70A Manuel d'utilisateur Page 10