Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 556)

Audio Commands
Speaker & Microphone Selection +SPEAKER
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WM_DEV_OAT_UGD_049 - 001 VOLUME 4 August 23, 2007
21.1.6 Notes
Analog In
(Mic)
Analog
Out Digital
IO Application
1 MIC2 SPK2 ∅ Analog handset/hands free
telephony
2 MIC2 SPK1 ∅ Analog handset/hands free
telephony
3 MIC1 SPK2 ∅ Analog handset/hands free
telephony
4 MIC1 SPK1 ∅ Analog handset/hands free
telephony
9 ∅ ∅ USER
PCM
bus
Digital handset/hands free
telephony
The digital audio interface (IOM-2) interface mode allows the connectivity with audio
peripherals, and consists of 4 wires (PCM-SYNC, PCM-CLK, PCM-IN, PCM-OUT).
The IOM-2 frame is divided in 6 slots : each slot allows the transmission/reception of
a 16 bits word.
When a configuration that includes digital IOs is used, the slot 0 will be allocated for
exchanging audio data with the Wireless CPU ® . Depending on the chosen
configuration, the audio samples will be routed in different location in the audio
chain.