LTE Module Series
M.2 EVB User Guide
M.2_EVB_User_Guide 23 / 37
The figure and table below illustrate the pin assignment and definition of handset interface J303.
1
2
3
4
Figure 17: Pin Assignment of J303
Table 6: Pin Definition of J303
4.5.
(U)SIM Interfaces (J401/J402)
The M.2 EVB has two 8-pin push-push type (U)SIM card (3.0V or 1.8V) connector J401 and J402. Both of
them can be used for EM06 module, and EM06 supports Dual SIM Single Standby* function. The J402 is
not applicable for EM05 module. The following figure shows the pin assignment and definition of J401/J402.
Pin No.
Pin Name
Function
1
MICN
Negative microphone input
2
SPKN
Negative loudspeaker output
3
SPKP
Positive loudspeaker output
4
MICP
Positive microphone input
