NAL RESEARCH CORPORATION A3LA-RS, Быстрый старт

Страница: 8 / 16

A3LA-RS Quick Start Guide Version A
Document Number: 451-92899-002A 8 of 16
2 D
EVICE
D
ESCRIPTION
2.1 M
ULTI
-
INTERFACE
C
ONNECTOR
The multi-interface connector is a male (DB) 15-pin miniature D-Sub type (see Figure 1) that
includes four interfaces—RS232, DC input power, ON/OFF control line, and TX_ACTIVE. The
multi-interface connector pin assignments are summarized in Table 1.
Table 1: Multi-Interface Pin Assignments
Pin # Signal Description Interface
1 EXT_B+ External 3.5 VDC – 6.0 VDC input DC Power
2 N/C
3 EXT_GND External GND input DC Power
4 EXT_ON_OFF Power on/off control input DC Power
5 N/C
6 S_TX RS232 Transmit Data (Input) RS232 Data
7 S_RX RS232 Receive Data (Output) RS232 Data
8 EXT_GND External GND input DC Power
9 DCD RS232 Data Carrier Detect RS232 Data
10 DSR RS232 Data Set Ready RS232 Data
11 CTS RS232 Clear To Send RS232 Data
12 RI RS232 Ring Indicate RS232 Data
13 RTS RS232 Request To Send RS232 Data
14 DTR RS232 Data Terminal Ready RS232 Data
15 TX_ACTIVE Transmit Active Signal GPIO