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Copyright 2016, Zenner USA                              Page 6                                Confidential 

 

1 Introduction 

 
The Zenner USA Bluetooth Installation Radio (BTIR) is used by installers and field service technicians to 
deploy and manage Stealth Reader MIU devices such as utility meter interface units (MIUs).  With a BTIR, 
MIUs may be easily installed, upgraded, checked, and shutdown for shipping.  By following the instructions 
in this manual, you can get your BTIR up and running quickly and easily. 

 

The BTIR is a rugged, waterproof radio that allows communication between Stealth Reader interface units 
and a Bluetooth enabled handheld device.

 

Your BTIR product kit includes: 

 Installation 

Radio 

 Carry 

Case 

 USB 

Cable 

 

Car Charger USB Power Adapter 

 
2 External 

Features 

The BTIR is a self-contained device with no user serviceable parts.  There are 3 external features for the 
User. 
 
2.1 Restart 

switch 

The Restart switch is provided to perform a soft restart of the BTIR.  It is used to wake the BTIR from a 
“sleep” mode and/or initiate Pairing.

  

A soft restart allows your BTIR to get a fresh start, similar to rebooting 

a desktop computer. To perform a soft reset, press and release the Restart button located next to the USB 
port. 
 
2.2 

USB Connector and Protective cover 

The USB connector is USB Type B.  It is used for charging only.  The protective cover should remain in 
place at all times except while charging. 
  
2.3 

2 color LED 

Red indicates the BTIR is transmitting to a Stealth MIU. 
Green indicates the BTIR is receiving data from a Stealth MIU. 
 

Pairing with Your Terminal device 

Before the Bluetooth radio in the BTIR can operate with the terminal device it must be paired.  Follow the 
instructions of the terminal device manufacturer for pairing information.  
 
What you can do about pairing failures 
1.  Make sure Bluetooth is turned on at the hosting device.  
2. Determine which pairing process your hosting device employs.  
3. Turn on discoverable mode.  
4. Make sure the two devices are in close enough proximity to one another.  
5. Power the devices off and back on. A soft reset sometimes can resolve an issue.  
6. Power down likely interferers.  
7. Charge up both devices you're trying to pair.  
8. Delete a device from the hosting device and rediscover it.  
9. Make sure the devices you want to pair are designed to connect with each other. 
4 Firmware 

Upgrades 

4.1 

Stealth Radio Firmware Upgrades 

Firmware for the Stealth Radio may be upgraded over-the-air or at a factory test bench.  

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