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SIM7500_SIM7600_SIM7800 Series_MQTT_AT Command Manual 8 / 41
When set the value to 0, it need to set the right current date and
time by AT+CCLK when need SSL certification.
<negotiatetime>
The timeout
value used in SSL negotiate stage. The range is
10-300 seconds. The default value is 300.
<ca_file>
The root CA file name of SSL context. The file name must have
type like “.pem” or “.der”.The length of filename is from 5 to
128 bytes.
If the filename contains non-
ASCII characters, the file path
parameter should contain a prefix of {non-
ascii} and the
quotation mark (The string in the quotation mark should be
hexadecimal of the filename’s UTF8 code).
There are two ways to download certificate files to module:
1. By AT+CCERTDOWN.
2. By FTPS or HTTPS commands. Please refer to:
SIM7500_SIM7600_SIM7800 Series_FTPS_AT Command
Manual
and SIM7500_SIM7600_SIM7800 Series_HTTP_AT
Command Manual
<clientcert_file>
The client cert file name of SSL context. The file name must
have type like “.pem” or “.der”.The length of filename is from 5
to 128 bytes.
If the filename contains non-
ASCII characters, the file path
parameter should contain a prefix of {non-
quotation mark (The string in the quotation
hexadecimal of the filename’s UTF8 code).
There are two ways to download certificate files to module:
1. By AT+CCERTDOWN.
2. By FTPS or HTTPS commands. Please refer to:
SIM7500_SIM7600_SIM7800 Series_FTPS_AT Command
Manual and SIM7500_SIM7
600_SIM7800 Series_HTTP_AT
Command Manual
<clientkey_file>
The client key file name of SSL context. The file name must
have type like “.pem” or “.der”.The length of filename is from 5
to 128 bytes.
If the filename contains non-ASCII characters, the file path
parameter should contain a prefix of {non-
ascii} and the
quotation mark (The string in the quotation mark should be
hexadecimal of the filename’s UTF8 code).
There are two ways to download certificate files to module:
1. By AT+CCERTDOWN.
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