User's Manual

GSM/GPRS/GNSS Module Series
MC60 Hardware Design
MC60_Hardware_Design Confidential / Released 56 / 99
Figure 29: Sketch Map for RS-232 Interface Match
Please visit vendors’ websites to select a suitable IC, such as: http://www.maximintegrated.com and
http://www.exar.com/.
3.8. Audio Interfaces
The module provides one analog input channel and two analog output channels.
Table 15: Pin Definition of Audio Interface
Interface Pin Name Pin No. Description
AIN/AOUT1
MICP 1 Microphone positive input
MICN 2 Microphone negative input
SPKP 3 Channel 1 Audio positive output
SPKN 4 Channel 1 Audio negative output