Cable Jacket Properties; Shielding; Rs232 Ground Wiring - Iridium EDGE User Manual

WARNING Use power and ground conductors of proper gauge. Use of improper gauge
power cables could result in exposing cables to excessive heat which could cause fire,
resulting in serious injury or death.

4.3 Cable Jacket Properties

Select a cable jacket that meets all installation requirements such as temperature, vibration. flammability
and chemical resistance. Any cable that is exposed to sun light, should have adequate UV protection.

4.4 Shielding

A shield cable is recommended to minimize any EMI/EMC that could affect operation of the cable. The
cable's braid should be connected to a single point ground either near the power supply or at the Iridium
Edge connector depending on application requirements.

4.5 RS232 Ground Wiring

The serial RS2323 is a 3 wire interface. In addition to RS232 Rx and Tx, the RS232's signal ground
(distinct from the RS232 frame ground) must be connected to the Iridium Edge's ground.
A "Y" connection for the ground connection in the mating cable is recommended to minimize voltage
differences between the Iridium Edge, the power source and the host controller.
WARNING Properly ground the Iridium Edge. Failure to properly ground the Iridium Edge
could cause unexpected currents, which could cause serious injury or death.
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