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COM9522B Iridium Satellite Modem Interface
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The COM9522B interface provides a convenient way to connect an Iridium 9522B satellite transceiver to a computer or data logger and to a power supply. When the COM9522B interface and Iridium 9522B satellite transceiver are combined, a data logger is easily accessible over the global Iridium satellite network.

The COM9522B may be ordered individually or preferably as part of the IRIDIUM9522B Satellite Modem and Interface Kit.

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Benefits and Features

  • Rugged enough for harsh environments
  • Low power - suitable for remote applications
  • Easiest and most reliable way to connect an Iridium 9522B to a data logger or computer


COM9522B front left tilt view
COM9522B front left tilt view
COM9522B front left tilt view
COM9522B front view
COM9522B front right tilt view
COM9522B with attached 26-pin ribbon cable for use with the 30693
COM9522B shown with the 30693

Detailed Description

The COM9522B has an RS-232 port, power and control terminals, and a 26-pin connector. The COM9522B connects to the data logger's RS-232, COM, or CS I/O port.

LEDs on the COM9522B indicate the following:

  • Power On
  • Network Service
  • Modem Output
  • Modem Input


Operating Voltage 9 to 18 Vdc, 12 Vdc nominal
Current Drain at 12 Vdc
  • 20 μA (quiescent, off state)
  • 32 mA (active, on state max)
Maximum Supply Current 2500 mA
Control Input Voltage
  • < 1.25 Vdc (guaranteed off)
  • > 3.24 Vdc (guaranteed on)
  • 18 Vdc (maximum voltage)
Communication Rate 19200 bps (between data logger and COM9522B)
Operation Full-duplex
Operating Temperature Range -40° to +70°C
LEDs Power switched to Iridium Modem, TX and RX, Network Service
Compliance CE Compliant
  • 20.1 cm (7.9 in.) with mounting bracket
  • 17.0 cm (6.7 in.) without mounting bracket
Width 3.8 cm (1.5 in.)
Weight ~476 g (17 oz)


Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Data Loggers

Product Compatible Note
21X (retired)
CR10 (retired)
CR1000 (retired)
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR295X (retired)
CR300 Use a 18663 null modem cable.
CR3000 (retired)
CR310 Use a 18663 null modem cable.
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR800 (retired)
CR850 (retired)
CR9000 (retired)
CR9000X (retired)

Mounting Equipment

Product Compatible Note

Additional Compatibility Information


LoggerNet provides support for communicating with our data loggers over the the Iridium network using the Iridium 9522B. LoggerNet provides user control by allowing direct communications with the remote station using the Iridium Dial-up or RUDICS services. LoggerNet can run unattended, providing scheduled communications for data and image collection, as well as remote station administration.

Enclosure Considerations

The COM9522B requires a desiccated, non-condensing environment; a Campbell Scientific enclosure is recommended. Grommets and screws are provided to attach the COM9522B to the backplate of our enclosures.

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