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PART 4 – Embedded Device Servers 
Chapter 12 – SocketWireless Bluetooth (MTS2BTSMI) 
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342M) 
173 
 
Application Notes 
 
Antenna  
See Chapter 1 for Antenna System details. Note that the cable for the Wi-Fi SocketModem has a reverse polarity 
SMA plug. 
 
 
 
Default Power Up Settings 
AT Command Response Form = Long Form 
Bluetooth Service Profile = Serial Port Profile {SPP} 
Device Role = Slave 
Baud Rate = 9600bps 
Data Bits = 8 bits 
Parity = None 
Stop bits = 1 bit 
Hardware Flow Control RTS/CTS = Enabled 
Power Mode = Never go into deep sleep mode 
Country Code = North America and Europe 
Name of Device (local name) = SocketWireless 
My Radio Status = 1,0 {slave, disconnected} 
Service Name = COM0 
Power up default ATSW24 settings = 0,0,0,0 {long response, no authentication, no auto SCO connect, no minor} 
Power up default ATSW25 settings = 0,1,0,0 {slave, data, allow data to pass, SPP} 
Major & Minor Class Of Device (COD) = 00000000 {undefined} 
Security PIN and Encryption Disabled  
  Default PIN = “default” caps sensitive so do not use any capital letters 
Important Security PIN  Note:  
Do not forget your PIN. Write it down. If you forget it, there is no way it can be retrieved from the device 
or the software. You will have to buy a new SocketWireless Bluetooth and start over. 
  
Page Scan Interval = 0x400 {2560msec.} 
Page Scan Window = 0x200 {11msec.} 
Inquiry Scan Interval = 0x400 {2560msec.} 
Inquiry Scan Window = 0x200 {11msec.} 
Timeout Connection Parameters 
Inquiry = 60 seconds 
Slave Connect = 60 seconds 
Master Connect = 60 seconds 
ATDM idle mode = 60 seconds 
ATDM Master Mode = indefinitely (need to perform ATUCL to cancel last command)  
Timeout for loss of Bluetooth connection = 4 seconds 
 
 
Preliminary  
Confidential