NAL Research Corporation (TN2009-25-V1.0)
6
2.7 Reference Documents
A3LA-XM Product Information
Getting Started With Model A3LA-XM (TN2009-26-V1.0)
AT Command Reference for Model A3LA-XM (TN2009-27-V1.0)
Encryption Module Manual (TN2009-28-V3.0)
Current Drawn by A3LA-XM (TN2009-29-V1.0)
Current Drawn by A3LA-XMP (TN2009-30-V1.0)
SatTerm Software Manual (TN2009-19-V7.0)
Additional Information on DirectIP SBD (TN2007-637-V1.0)
Additional Information on SBD (AN2007-07-V3.3.0)
3.0 MULTI-INTERFACE CONNECTOR
The multi-interface connector is a male 25-pin miniature D-Sub type that includes seven interfaces—
RS232, USB, DC input power, DC output 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‘
the same as for models 9522A, A3LA-D, A3LA-D-NV and A3LA-SA except for Pin 2.
Table 1.
Pin assignment 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 4.0VDC – 32.0VDC input
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
S_TX
RS232 Transmit Data/USB D
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 2.048MHz audio clock output
Digital Audio
13
S_RX
RS232 Receive Data/USB D+
RS232 Data
14
SIGNAL GND
RS232 Ground/USB Ground/Signal Ground
GND
15
MIC_AUD
Microphone audio input
Analog Audio
16
EXT_B+
External 4.0VDC – 32.0VDC input
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/USB VBUS
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
RS232 Ground/USB Ground/Signal Ground
GND
24
DA_RX
PCM digital audio input
Digital Audio
25
SIGNAL GND
RS232 Ground/USB Ground/Signal Ground
GND
