DIR-620S  Wireless N300 Router with 3G/LTE Support and
USB Port
User Manual
Configuring via Web-based Interface
Parameter Description
ACM
Admission Control Mandatory.
If   the   switch   is   moved   to   the   right,   the   device   cannot   use   the 
relevant Access Category.
ACK
Acknowledgment. Answering response requests while transmitting. 
Displayed only in the Access Point section.
If the switch is moved to the left, the router answers requests.
If the switch is  moved   to   the   right,   the router does  not   answer 
requests.
Click the SAVE button.
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