![Yeastar Technology S-Series Installation Manual Download Page 32](http://html2.mh-extra.com/html/yeastar-technology/s-series/s-series_installation-manual_3259658032.webp)
Installation_Guide | 1 - Installation Guide | 32
5.
Insert the Telephony Modules on the EX08 Board.
Note:
Skip this step for EX30 Board.
6.
Follow the instructions to insert a SIM card on the GSM/3G/4G module.
Note:
Skip this step if no GSM/3G/4G module is installed.
7.
Close the cover and fix the screws.