NAL RESEARCH CORPORATION A3LA-R, Руководство пользователя

Страница: 18 / 159

A3LA-R-MIL-MOD User Guide Version B
Document Number: 451-93156-001A 18 of 159
2 M
ULTI
-I
NTERFACE
C
ONNECTOR
The multi-interface connector is a male 25-pin miniature D-Sub type (see Figure 1) that includes
five interfaces—RS232, DC input power, ON/OFF control line, analog audio, and Digital
Peripheral Link (DPL). The multi-interface connector pin assignments are summarized in Table
1, which is ‘pin-to-pin’.
Table 1: Pin Assignments for the Multi-interface Connector
Pin # Signal Description Interface
1 EXT_ON_OFF Power on/off control input DC Power
2 +12VDC Output Voltage to Power the DPL Handset DC Power
3 EXT_GND External GND input DC Power
4 EXT_B+ External 4.0 V – 5.5 V or 5.0 V – 32.0 V DC Power
5 SPKR_AUD Speaker audio output Analog Audio
6 DA_TX PCM digital audio output Digital Audio
7 RI RS232 Ring Indicate RS232 Data
8 RTS RS232 Request To Send RS232 Data
9 TX RS232 Transmit Data (Input) RS232 Data
10 DCD RS232 Data Carrier Detect RS232 Data
11 DA_FS PCM digital audio frame sync output Digital Audio
12 DA_CLK PCM digital 2.048 MHz audio clock output Digital Audio
13 RX RS232 Receive Data (Output) RS232 Data
14 SIGNAL GND Signal ground, 0 V signal reference and return GND
15 MIC_AUD Microphone audio input Analog Audio
16 EXT_B+ External 4.0 V – 5.5 V or 5.0 V – 32.0 V DC Power
17 EXT_GND External GND input DC Power
18 DPL_TX Digital Peripheral Link (DPL) data output DPL UART
19 DTR RS232 Data Terminal Ready RS232 Data
20 DPL_RX Digital Peripheral Link (DPL) data input DPL UART
21 DSR RS232 Data Set Ready RS232 Data
22 CTS RS232 Clear To Send RS232 Data
23 SIGNAL GND Signal ground, 0 V signal reference and return GND