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ASTi Interface - Bravo (AI-Bravo)

Latest Firmware Version: v1.6.4

Technical User Guide

The following information comes from the AI-Bravo Technical User Guide. For a comprehensive overview of the AI-Bravo, go to the full guide.

View Guide

The ASTi Interface – Bravo (AI-Bravo) is a compact audio and I/O distribution device that connects local or remote operator headsets, speakers, control panels, and other peripherals to the network via Ethernet.

A comprehensive overview of the AI-Bravo can be found in the Technical User Guide.

General Specifications

Compatible with Voisus
Dimensions 6.63" L x 4" W x 2.13" H
Weight 1 lb., 3 oz.
Power Source Ethernet port via Power over Ethernet (PoE), IEEE 802.3af
Power Consumption 12.5 w @ 56 VDC

Audio Input/Output

Audio Input

Impedance 1.65 kΩ
Level 4.5 Vpp max (2.2 Vpp differential)
Gain 0 dB, +10 dB to +65 dB, software configurable*

*The AI-Bravo gain covers a total range of 65 dB. You can set the range of +10 dB to +65 dB in 1 dB steps; however, you cannot select the range 1dB to +9 dB as a function of design.

Audio Output

Impedance 10 Ω
Max. power 150 mW at 32 Ω
Max. output signal 3.75 Vpp at 150 Ω
2.4 Vpp at 8 Ω
Frequency response 20 Hz to 20 kHz

Memory Devices


Type Size User Modifiable Function Process to Clear
CPU internal cache 512 KB No Internal cache for CPU Remove Power
Count to 30
Restore Power
Internal cache 128 KB No Internal cache Remove Power
Count to 30
Restore Power
RAM 1 GB No RAM Remove Power
Count to 30
Restore Power


Type Size User Modifiable Function Process to Clear
eMMC 4 GB Yes Application Contact ASTi
EEPROM 2 x 32 KB No Device identification None


Audio Interface

DB-15 Connector (Channels A & B)

I/O Interface

DB-15 Connector (I/O Ports 1–4)

*For I/O Ports 1–4, Pins 9 and 15 are fused to 150 ma MAX.


ASTi warrants to the buyer and its customers that all items delivered and all services rendered hereunder will conform to the requirements hereof and will be free from defects. In addition to other remedies that may be available at law or in equity, the buyer may return to ASTi any nonconforming or defective items or require correction or replacement of the item, all at ASTi’s risk and expense. If the buyer does not require correction or replacement of nonconforming or defective items, ASTi shall repay such portion of the contract price or such additional amount as is equitable under the circumstances.

Warranty period: 12 months from shipment date