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Quick-Start Guide

To view manuals, FAQs, videos, drivers, downloads, technical drawings, and more, visit www.startech.com/support.

Manual Revision: June 10, 2021 5:47 PM

Product Diagram (BT52A)

Component

Function

1

DC 5V Port (micro 

USB)

• 

Used to connect the 

Power Adapter

 to the 

Audio Receiver

.

2

Optical Port

• 

Used to connect an 

Audio Device

 via 

Toslink® 

Cable

 to the 

Audio Receiver

.

3

Audio Out Port

• 

Used to connect an 

Audio Device

 via 

3.5 mm 

Cable

 to the 

Audio Receiver

.

LED Indicator (front)

• 

Flash Once:

 Indicates that the 

Audio Device

 is 

powered and waiting to pair with a 

Bluetooth 

Device

.

• 

Solid:

 Indicates that a 

Bluetooth Device

 has 

been paired with the 

Audio Receiver

.

• 

Blinking:

 Indicates that the 

Bluetooth Device

 

is disconnected from the 

Audio Receiver

.

Requirements

For the latest requirements, please visit 

www.startech.com/BT52A

Powering the Audio Receiver

1. 

Connect the 

Universal Power Adapter

 to the 

DC 5V Port

 on the 

Audio Receiver

 and 

the other end to an 

AC Electrical Outlet

.

2. 

The 

LED Indicator

 will flash once, Indicating that the 

Audio Device

 is powered and 

waiting to pair with a 

Bluetooth Device

.

Bluetooth® 5.0 Audio Receiver

Connecting the Audio Receiver

Analog

• 

Connect the 

3.5 mm Audio Cable

 (included) to the 

Audio Out Port

 on the 

Audio 

Receiver

 and the other end to an 

Audio In Port

 on the 

Audio Device

 (audio 

receiver, etc.)

or - 

Connect the 

3.5 mm Audio Cable

 (included) to the 

Audio Out Port

 on the 

Audio 

Receiver

 and the other end to the 

RCA Breakout Cable

 (included). Then connect  

both the left and right connectors on the 

RCA Breakout Cable

 to the left and right 

Audio In Ports

 on the 

Audio Device

.

Digital

• 

Connect the 

Toslink Cable

 (sold separately) to the 

Optical Port

 on the 

Audio 

Receiver

 and the other end to an 

Optical Port

 on the 

Audio Device

 (audio receiver, 

etc.)

Pairing with NFC Fast Connection

The 

Audio Receiver

 is equipped with a standard NFC tag to allow for NFC pairing. 

NFC allows you to connect a 

Bluetooth Device

 to the 

Audio Device 

by touching the 

Bluetooth Device 

to the 

Audio Receiver

.

The maximum distance the 

Bluetooth Device

 can be from the 

Audio Receiver

 is 66 ft 

(20 meters).

NOTE: 

Store the connection data for up to eight 

Bluetooth Devices

. Connect and 

use one 

Bluetooth Device

 at a time.

1. 

Ensure NFC is enabled on your 

Bluetooth Device

. Check the device’s manual for 

details.

2. 

Touch a 

Bluetooth Device

 to the top of the 

Audio Receiver

 for 3 seconds.

NOTE: 

If this is the first time your 

Bluetooth Device

 has been paired you may receive 

a message requesting access.

3. 

The 

Bluetooth Device

 is now paired, the 

LED Indicator

 will be solid and audio 

from the 

Bluetooth Device

 will output through the connected 

Audio Device

.

Disconnecting from your NFC Device

1. 

Touch the paired 

Bluetooth Device

 to the top of the 

Audio Receiver

 for 3 seconds.

2. 

The 

Bluetooth Device

 is now disconnected from the 

Audio Device

.

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