Iridium 9603 - User Connector Pin Allocation

Iridium 9603 SBD Transceiver Product Developers Guide
Revision 3.1
Proprietary & Confidential Information
Distribution of guide restricted to product developers only • Information contained in this guide is subject to change without notice.
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3.1.2 User Connector Pin Allocation
The user connector is surface mount, 0.4mm centerline terminal strip. Individual pin assignments are shown in Table 7 and the
limits for the digital signals are listed in Table 8. Multiple supply grounds are provided and all supply and supply grounds are
required to be connected to the power supply in order to limit the current on any one pin. Multiple signal grounds are provided to
reduce cross-talk.
Table 7: User Connector Pin Allocation
Pin
No.
Signal Name
Signal direction
(WRT 9603/9603N)
Signal function
Signal level
1
EXT_PWR
Input
Supply
+5 V +/- 0.2 V*
2
EXT_PWR
Input
Supply
+5 V +/- 0.2 V*
3
EXT_GND
Input
Supply return
0 V
4
EXT_GND
Input
Supply return
0 V
5
ON/OFF
Input
On/Off control input
Analog
On: >=2.0V
Off: <=0.5V
6
DF_S_TX
Input
Data port, serial data input
3.3V Digital
7
DF_S_RX
Output
Data port, serial data output
3.3V Digital
8
SIG_GND
Input
Signal ground
0V
9
DF_ DCD
Output
Data port, Data Carrier
Detect
3.3V Digital
10
DF_ DSR
Output
Data port, Data Set Ready
3.3V Digital
11
DF_ CTS
Output
Data port, Clear-to-Send
3.3V Digital
12
DF_RI
Output
Data port, Ring Indicator
3.3V Digital
13
DF_ RTS
Input
Data port, Request-to-Send
3.3V Digital
14
DF_ DTR
Input
Data port, Data Terminal
Ready
3.3V Digital
15
SIG_GND
Input
Signal ground
0V
16
Reserved
17
Reserved
18
SIG_GND
Input
Signal ground
0V
19
NETWORK
AVAILABLE
Output
Signals when the
9603/9603N can see an
available satellite network
3.3V Digital
Available = high
Not available= low
20
SUPPLY_OUT
Output
Supply power indicator
output
+3.3 V
5mA maximum
* Note: This is the supply voltage range of the 9603; the 9603N has an extended supply voltage range of +5 V +/- 0.5 V
Table 8: Limits for 3.3V Digital Signals
Parameter
Symbol
Min
Typ
Max
Unit
Input High Voltage
VIH
2.0
5.5
V
Input Low Voltage
VIL
-0.3
0.8
V
Output High Voltage
VOH
2.4
V
Output Low Voltage
VOL
0.4
V
Low Level Output Current
IOL
4.4
mA
High Level Output Current
IOH
5.5
mA