Iridium Satellite LLC
9522B L-Band Transceiver Product Information Guide
10
LBT)
3.3.1 Multi-Interface Connector
The multi-interface connector is a standard 26-pin 0.1” pitch short latch IDC header with pins in two rows
of 13. Connection to this is made using a 26-way IDC without strain relief (such as AVX/Kyocera 00 8290
026 000 0X 1 or Harting 09 18 526 7803). To support legacy applications, a cable is available that
converts its pin-out to a DB25 connector with the same pin-out as the 9522A. The connector includes
four interfaces:
•
DC Power
•
Control/Digital Audio (DPL bus)
•
RS232 Data
•
Analog Audio
The pin out information for this connector is given in Table 4 and Figure 6 below. The pin out from the
DB25 adapter is given in Table 5 below.
Table 4: 26-way connector pin-out
Contact
Signal
Description
1
EXT_ON_OFF
External connection for On / Off key input to LBT
2
AUDIO_GND
Analog audio (speaker and microphone) ground reference
3
EXT_11HZ
90ms “frame sync” signal (used in testing)
4
MIC_AUD
Microphone audio input to LBT
5
EXT_GND
Power Ground input to LBT
6
EXT_PWR
Power input to LBT
7
EXT_PWR
Power input to LBT
8
EXT_GND
Power Ground input to LBT
9
SPKR_AUD
Speaker audio output from LBT
10
DPL_TX
Digital Peripheral Link (UART) data output from LBT
11
DA_TX
PCM digital audio output from LBT
12
DF_DTR
Data / Fax Data Terminal Ready input to LBT
13
DF_RI
Data / Fax Ring Indication output from LBT
14
DPL_RX
Digital Peripheral Link (UART) data input to LBT
15
DF_RTS
Data / Fax Request to Send input to LBT
16
DF_DSR
Data / Fax Data Set Ready output from LBT
17
DF_S_TX
Data / Fax (UART) data input to LBT
18
DF_CTS
Data / Fax Clear to Send output from LBT
19
DF_DCD
Data / Fax Data Carrier Detect output from LBT
20
0V
Signal ground, 0V signal reference and return
21
DA_FS
PCM digital audio frame sync output from LBT
22
DA_RX
PCM digital audio input to LBT
23
DA_CLK
PCM digital 2.048MHz audio clock output from LBT
24
0V
Signal ground, 0V signal reference and return
25
DF_S_RX
Data / Fax data (UART) output from LBT
26
NETWORK_
AVAILABLE
Network available output from LBT
