Iridium Satellite / COM9522B
COM9522B Iridium Satellite Modem Interface
Ideal for Remote Sites
Low power use, wide operating temperature range
weather applications water applications energy applications gas flux & turbulence applications infrastructure applications soil applications


The COM9522B interface provides a convenient way to connect an Iridium 9522B satellite transceiver to a computer or datalogger and to a power supply. When the COM9522B interface and Iridium 9522B satellite transceiver are combined, a datalogger 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 datalogger 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 datalogger'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
  • 20 μA (quiescent, off state)
  • 32 mA (active, on state max)
Maximum Supply Current 2500 mA
Communication Rate 19200 bps (between datalogger and COM9522B)
Operation Full-duplex
Operating Temperature Range -30° to +70°C
Control Input Voltage
  • < 1.25 Vdc (guaranteed off)
  • > 3.24 Vdc (guaranteed on)
  • 18 Vdc (maximum voltage)
Compliance CE Compliant


Datalogger Considerations

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR9000X CR6 CR300

*Use a 18663 null modem cable.

Compatible Retired Dataloggers

CR500 CR510 CR10 CR10X 21X CR23X CR9000 CR5000 CR7X


LoggerNet provides support for communicating with our dataloggers 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.

Compatible Enclosures

ENC10/12 ENC10/12R ENC12/14 ENC14/16 ENC16/18

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