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The M2M system connector also supports analog audio functionality that is an alternative to
the Digital Audio Interface. Microphones and headphones can be connected through the
analog audio signal interface.
Figure 2. Nokia 30 GSM Connectivity Terminal, front view.
Figure 3 Nokia 30 GSM Connectivity Terminal, bottom view.
Led user
interface
External
antenna
connector
SIM card
slot
SIM cover
Power
interface
M2M system
connector