December 2006
Blue Sky Network
100115
C-1000A Iridium™ Satellite Phone System
Page
17
DB-37 “Cabin Unit” Connector
PIN
SIGNAL
DESCRIPTION
1
CU_232_DCD
EIA-232 DCD (Data Carrier Detect)
2
CU_232_RX
EIA-232 RX (Receive)
3
CU_232_TX
EIA-232 TX (Transmit)
4
CU_232_DTR
EIA-232 DTR (Data Terminal Ready)
5
CU_232_GND
EIA-232 Ground Return
6
CU_232_DSR
EIA-232 DSR (Data Set Ready)
7
CU_232_RTS
EIA-232 RTS (Request to Send)
8
CU_232_CTS
EIA-232 CTS (Clear to Send)
9
CU_232_RI
EIA-232 RI (Ring Indicator)
10 GND
Shield
Ground
(Only Connect Shields at this end of Cable)
11
GND
DC Return Ground, Cabin Unit
12
CU_12V
+12 VDC, Cabin Unit
13 LEDS_OUT
Green
Status LED, Cabin Unit
14
POTS_TIP
Analog Telephone, RJ11 Tip
15
POTS_RING
Analog Telephone, RJ11 Ring
16
4W_OUT1
600 Ohm Balanced Cockpit Audio Out
17
4W_OUT2
600 Ohm Balanced Cockpit Audio Out
18
4W_IN1
10K Ohm Balanced Cockpit Audio In
19
4W_IN2
10K Ohm Balanced Cockpit Audio In
20 GND
Shield
Ground
(Only Connect Shields at this end of Cable)
21
Handset/ SIM Card Reader:
(Connected, but not used)
22 LBT_ON-OFF
Handset/ SIM Card Reader:
LBT On/Off
23 GND
Handset/ SIM Card Reader:
Ground
24 UPLINK
Handset/ SIM Card Reader:
DSC Bus Uplink Data
25 DOWNLINK
Handset/ SIM Card Reader:
DSC Bus Downlink data
26 DSC_EN_12V
Handset/ SIM Card Reader:
DSC Bus Power
27
Handset/ SIM Card Reader:
(Connected, but not used)
28 GND
Handset/ SIM Card Reader:
Ground
29 GND
Shield
Ground
(Only Connect Shields at this end of Cable)
30
SPKR2
Speaker (Cabin Unit Internal Ringer)
31
SPKR1
Speaker (Cabin Unit Internal Ringer)
32
HDSET_OUT2
2.5mm Headset Jack, Receiver, Cabin Unit
33
HDSET_OUT1
2.5mm Headset Jack, Receiver, Cabin Unit
34
HDSET_IN2
2.5mm Headset Jack, Microphone, Cabin Unit
35
HDSET_IN1
2.5mm Headset Jack, Microphone, Cabin Unit
36
HDSET_PRSNT Headset Plug Detected
37
Spare (Not Connected)
Notes 1. Shield Grounds should only be connected to Aircraft Ground at the Modem
Unit end of the interface harness
Summary of Contents for Iridium C-1000A
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