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9150-0125-01 R-4
8.1.1
Device Advertising and Discoverability
If NUS is enabled, the device will advertise and remain discoverable, however, the BLE Configuration Service, Nordic DFU
Service, and ASIC DFU Service will not be accessible. In order to completely prevent any device advertising and
discoverability, BLE Configuration Service and NUS must both be disabled.
8.1.2
External Interfaces
Device is supported by two Interfaces currently as following:
•
Physical UART
o Can be enabled/disabled via GPIO Module AT commands
•
BLE Nordic UART Service (NUS), BLE-UART
o Can be enabled/disabled via BLE Settings AT commands
8.1.3
External Interface Security
Device external interfaces are protected with various security configurations:
8.1.3.1
Permanently Disabled
Only read-only commands can be executed
8.1.3.2
Permanently Enabled
All read and write configuration commands can be executed without requiring an authentication passphrase to
be entered.
8.1.3.3
Temporarily Enabled
All read-only command can be executed any time, however, write command require a pre-set passphrase to be
entered via an auth command prior to executing a write command.
The auth command enables write-access, however, is not saved to persistent storage and will reset when the
device resets or when an auth disable command is executed.
8.1.3.4
Temporarily Enabled with Timeout
All read-only command can be executed any time, however, write command require a pre-set passphrase to be
entered via an auth command prior to executing a write command. Additionally, elevated authorization status
will timeout automatically after a pre-set configurable time.
The auth command enables write-access, however, is not saved to persistent storage and will reset when the
device resets or when an auth disable command is executed.
ST150M User Manual
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