
2.1 Frequently Asked Questions (FAQs)
Question Description Solution
What is the pinout of BL-521
dongle/ 819 and 830?
The BL-521 has a male 9 pin D
connector (DTE)
The BL-819 has a male 9 pin D
connector (DTE)
The BL-830 has a female 9 pin D
connector (DCE)
DTE = Data Terminal Equipment
DCE = Data Communication
Equipment
male
female
What version of the Bluetooth
specification is supported?
BL-521/730
BL-819/830
Our products our officially accredited to
Bluetooth standard 1.1, Firmware
versions 4.3.0 onwards are also
Bluetooth 1.2 compliant.
Contact
Brainboxes for these latest firmwares
to upgrade your device.
What Bluetooth profiles are
supported by your devices?
BL-521/730
BL-819/830
Serial Port Profile (SPP)
Is the headset profile supported?
Our devices do not currently support
the headset profile.
BT RS232 Troubleshooting
Guide
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