4 pin assignment of the serial interface – VEGA MoRoS GPRS 1.3 User Manual

Page 18

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Connections

MoRoS GPRS 1.3

18

6.4

Pin Assignment of the Serial Interface

Figure 5: 9-pin Sub-D jack at the device

Pin

Signal

Description

1

DCD

Data Carrier Detect

2

RXD

Receive Data

3

TXD

Transmit Data

4

DTR

Data Terminal Ready

5

GND

Ground

6

DSR

Data set ready

7

RTS

Request to send

8

CTS

Clear To Send

9

RI

Ring Indication

Table 10: Description of the pin allocation of the Sub-D jack

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