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C-1000A Iridium™ Satellite Phone System
100115
“
Power” connector
) output with respect to the common lead (P1-7 on the “
Power”
connector
). The common lead is current limited to protect the relay contacts against
accidental short circuit events. Normal operating current through these contacts
should be no more than 100 mA at up to 60 VDC.
TX Input, Balanced Audio, Dry Circuit ....... 10K Ohm
(DB-37 Pins 18 & 19)
RX Output, Balanced Audio, Dry Circuit.... 600 Ohm
(DB-37 Pins 16 & 17)
Discreet Hook Switch Inputs ..................... Optically Isolated, ±5 to ±60 VDC
(
DB-9 “Power” connector pins 4 & 5)
Discreet Incoming Ring Indicator............... Relay Isolated, 100 mA, 60 VDC max
(
DB-9 “Power” connector pins 7, 8 & 9)
Audio Band Pass ....................................... 300 Hz to 3400 Hz
PC Data Port Interface
The C-1000A Modem Unit includes an interface that enables a standard PC to
access the Iridium Data Services for connection to the Internet or a corporate
network, thus allowing the user to browse the web, send and receive email and
transfer files. This capability requires the purchase of an optional Iridium Data Kit and
the installation of the included software on the user’s PC. Iridium Data Services can
be run on a computer using the Windows XP, 95, 98, NT 4.0, 2000 and ME
Operating Systems.
This interface is available via the DB-9 connector on the C-1000A Cabin Unit or can
be wired directly from the C-1000A Modem Unit to other convenient locations around
the aircraft.
See DB-37 “Cabin Unit” Connector pins 1 thru 9.
C-1000A Modem Unit Pinouts
DB-9 “Power” Connector
PIN
SIGNAL
DESCRIPTION
1
POWER_GND
Power Ground Return
2
28V_IN
28Vdc Power Input (Range: 18 - 32 VDC)
3
12V_IN
12Vdc Power Input (Range: 10 - 15 VDC)
4 E&M_IN4
E&M or Cockpit Audio
: Originate/Answer (±5 to ±60 VDC)
5 E&M_IN5
E&M or Cockpit Audio:
Originate/Answer Ground Return
6 AIRFRAME_GND
Airframe
Ground
(Connect to Aircraft Ground) (NOTE 1)
7 E&M_OUT7
E&M or Cockpit Audio:
Incoming Call Relay, Common
8 E&M_OUT8
E&M or Cockpit Audio:
Incoming Call Relay, Normally Closed
9 E&M_OUT9
E&M or Cockpit Audio:
Incoming Call Relay, Normally Open
Notes
1. Ground Cable to AIRCRAFT_ GND must be as short as possible to
ensure low inductance/resistance.
Summary of Contents for Iridium C-1000A
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