Nokia RM-305 - External Signals and Connections

Figure 82 4-pole jack plug for audio accessory
Table 6 Connector for External Audio Accessories
Line symbol Function
XMICP External microphone signal input
XMICN External microphone signal input
XEARP External earphone signal output
XEARN External earphone signal output
INT Accessory detection
GND Ground (Only used by PPH-1)
External signals and connections
Table 7 System connector
Pin Signal
1 GND
2 *
3 XMICIN
4 XEARN
5 XMICP
6 XEARP
7 HEADINT
RM-305; RM-306
System module
Page 6 –8 COMPANY CONFIDENTIAL Issue 2
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