Honeywell MX7 Reference Manual page 293

If the private key is present, the process is complete.
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If the private key is not present, import the private key.
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To import the private key, tap OK to return to the Certificates screen.
Tap import.
Using the explorer buttons, browse to the location where you copied the private key file, change the Type pull down list to
Private Keys, select the certificate desired and tap OK. Enter the password for the certificate if appropriate.
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