
4Bluetooth Option Installation Instructions
Using the Bluetooth Option
The Bluetooth option operates as a simple serial to Bluetooth converter, using the Bluetooth SPP, or Serial Port
Protocol.
The device is set up to be discoverable at all times.
1. From a PC or other Bluetooth device, perform a search for available Bluetooth devices.
• The Bluetooth Option should show in the search results with its MAC address, and/or
• the name “RLWS-xxxxxx”, where xxxxxx is the last 6 digits of the MAC address.
2. To pair to the Bluetooth Option, select it from your search results (or enter its name / MAC address).
• If your device supports SSP, or Simple Secure Pairing, the devices should pair on their own.
• If you have trouble pairing in this way, or your device/program asks for a pairing key, enter the default
key “1234”.
3. Once paired, the Bluetooth Option should show as a serial communications port on your device. At this
point, you can use your software to connect to the Bluetooth Option’s serial port and communicate with the
scale indicator.
Note Theserialportinyourindicatorthatisconnectedtothe109266boardJ1(Port1)mustbesetfor19200baud,
8 bits, no parity, and 1 stop bit. J2 on the 109266 board is not used with the Bluetooth Option.
General Bluetooth Option Specifications
Specification
Operating Frequency Range (2400 ... 2483,5) MHz
Lower Guard Band 2 MHz
Upper Guard Band 3, 5 MHz
Carrier Frequency 2402 MHz ... 2480 MHz
Modulation Method GFSK (1 Mbps)
P/4 DQPSK (2 Mbps)
Hopping 1600 hops/s, 1 MHz channel space
Maximum Data Rate
GFSK Asynchronous: 723.2 kbps / 57.6 kbps
Synchronous: 433.9 kbps / 433.9 kbps
P/4
DQPSK
Asynchronous: 1448.5 kbps / 115.2 kbps
Synchronous: 869.7 kbps / 869.7 kbps
8DQPSK Asynchronous: 2178.1 kbps / 177.2kbps
Synchronous: 1306.9 kbps / 1306.9 kbps
Receiving Signal Range -82 to -20 dBm
Receiver IF Frequency 1.5 MHz
Transmission Power Min -11 ... -9 dBm
Max +14 ... +18 dBm
RF Input Impedance 50 ˟
Compliance Bluetooth Specification, Version 2.0 + EDR