User Connector Pin Allocation - Iridium 9603 Developer's Manual

Iridium 9603 SBD Transceiver Product Developers Guide
Revision 3.1
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
Signal Name
No.
1 EXT_PWR
2 EXT_PWR
3 EXT_GND
4 EXT_GND
5 ON/OFF
6 DF_S_TX
7 DF_S_RX
8 SIG_GND
9 DF_ DCD
10 DF_ DSR
11 DF_ CTS
12 DF_RI
13 DF_ RTS
14 DF_ DTR
15 SIG_GND
16 Reserved
17 Reserved
18 SIG_GND
NETWORK
19
AVAILABLE
20 SUPPLY_OUT
* 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
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Low Level Output Current
High Level Output Current
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Signal direction
(WRT 9603/9603N)
Input
Input
Input
Input
Input
Input
Output
Input
Output
Output
Output
Output
Input
Input
Input
Input
Output
Output
Symbol
VIH
VIL
VOH
VOL
IOL
IOH
Signal function
Supply
Supply
Supply return
Supply return
On/Off control input
Data port, serial data input
Data port, serial data output
Signal ground
Data port, Data Carrier
Detect
Data port, Data Set Ready
Data port, Clear-to-Send
Data port, Ring Indicator
Data port, Request-to-Send
Data port, Data Terminal
Ready
Signal ground
Signal ground
Signals when the
9603/9603N can see an
available satellite network
Supply power indicator
output
Min Typ Max
2.0
-0.3
2.4
Signal level
+5 V +/- 0.2 V*
+5 V +/- 0.2 V*
0 V
0 V
Analog
On: >=2.0V
Off: <=0.5V
3.3V Digital
3.3V Digital
0V
3.3V Digital
3.3V Digital
3.3V Digital
3.3V Digital
3.3V Digital
3.3V Digital
0V
0V
3.3V Digital
Available = high
Not available= low
+3.3 V
5mA maximum
Unit
5.5 V
0.8 V
V
0.4 V
4.4 mA
5.5 mA
19