4. Antenna
5. Power LED (RED) :
Power LED turns on when Power is applied to Bluetooth to RS-232 adapter.
6. Mode LED (Orange) :
MODE LED is ON when Bluetooth to Serial Adapter is set to Configuration mode.
MODE LED is OFF when Bluetooth to Serial Adapter is set to normal DATA mode.
7. Link LED (BLUE) :
Link LED is ON when Bluetooth communication is paired and linked.
Link LED is OFF when Bluetooth communication is not linked.
Link LED is blinking when there is data transmitting / receiving between the linked devices
8. Switch (Applicable only in Power-version Bluetooth to RS-232 Adapter )
There are two states for the 9th pin on the DB9M connector, selectable by switch depend on
user's application. The three states are as follow:
A. None : (Default)
Setting the switch to
“
NONE
＂
position, the DB9M 9th-pin connector is useless.
B. 5V input / output :
Setting the switch to
“
5V
＂
position, the adapter can either draw/provide DC 5V power to/from
the device through the 9th-pin of the connector depends on the following scenario,
1. If the device equips 5V self-power features (e.g. barcode scanner with 5V power adapter input),
Bluetooth to RS-232 Adapter can work successfully without any power. A DC 5V power will be
applied to Bluetooth to RS-232 Adapter through DB9M 9th-pin connector from the device.
2. If Bluetooth to RS-232 Adapter with 5V power adapter input, a DC 5V power will output to the
device (e.g. barcode scanner) through DB9M 9th-pin connector from Bluetooth to RS-232 Adapter
- 6 -
CAUTION:
Take caution not to let any of the following situations happen while
the switch is set to "5V" position, or damages may occur to both your device
and the Bluetooth Adapter:
1. Do NOT plug in DC 12V power required devices.
2. Do NOT use DC 5V power adapters on both sides at the same time.
3. Your device MUST support power in/output toward DB9M 9th-pin connector.
