Iridium NAL Research Corporation 9602-NAL, User Manual

Page: 11 / 40

9602-N User Guide Version A
Document Number: 451-92695-001A 11 of 40
3 M
ULTI
-I
NTERFACE
C
ONNECTOR
The multi-interface connector is a male 15-pin miniature D-Sub type (DB-15 connector) that
includes five interfaces—DC power input, power on/off control, RS232 data interface, network
availability output, and supply power indicator output. Individual pin assignments are
summarized in Table 1 .
Table 1: Pin Assignments for the Multi-interface Connector
Pin # Signal Description Interface
1 EXT_PWR External DC Power Input +5.0 VDC ±0.5 V
2 EXT_PWR External DC Power Input +6.5 VDC to
+32 VDC
3 EXT_GND External GND Input 0 V
4 ON/OFF ON/OFF Control Input; ON ≥2.0 V; OFF ≤0.5 V Analog
5 SUPPLY_OUT Supply Power Indicator Output +3.3 V, 5 mA Max.
6 S_TX RS232 Transmit Data Input RS232 Data
7 S_RX RS232 Receive Data Output RS232 Data
8 SIG_GND Signal Ground, 0 V Signal Reference and Return 0 V
9 DCD RS232 Data Carrier Detect Output RS232 Data
10 DSR RS232 Data Set Ready Output RS232 Data
11 CTS RS232 Clear To Send Output RS232 Data
12 RI RS232 Ring Indicator Output RS232 Data
13 RTS RS232 Request To Send Input RS232 Data
14 DTR RS232 Request To Send Input RS232 Data
15 NET AVAIL Network Availability; Avail=High, Not Avail=Low 3.3 V Digital
3.1 RS232 D
ATA
I
NTERFACE
(9-W
IRE
C
ONFIGURATION
)
The 9602-NAL supports a standard RS232 serial interface to a host system DTE incorporating
hardware handshaking and flow control. The RS232 interface comprises eight signals and a
ground, as shown in Table 1 . The RS232 interface allows a connected DTE to utilize the 9602-
NAL’s functionality through AT commands. Note that the ring indicator is used by the 9602-NAL
to indicate that a Mobile-Terminated SBD (MT-SBD) message is queued at the gateway. The