Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved
FIBOCOM FG621-LA Series Hardware Guide
Page 29 of 57
shown in Figure 5-5 and Figure 5-6, respectively:
Figure 5-5 OC driven reset reference circuit
Figure 5-6 Button reset reference circuit
The reset timing is shown as follows:
Figure 5-7 Reset timing
Note:
RESET_N is a sensitive signal, so it is recommended to add a regulator capacitor close to the
module. The PCB layout should be kept away from the RF interference and protected by Ground.
At the same time, avoid routing on the edge and surface of PCB (to avoid module reset caused
by ESD).
5.2 Network Status Indication Interface
FG621-LA series module provides three network status indicate pins. Pin 170 is network status indicator
