---
title: "Specifications"
slug: "arc-specifications"
updated: 2024-11-05T09:19:04Z
published: 2024-11-05T09:19:04Z
canonical: "docs.telosalliance.com/arc-specifications"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Specifications

## Processing

- Linear Acoustic® APTO™ Loudness Adaptation Algorithm with processing for two PCM stereo or mono programs

## I/O

### AES-3 I/O

- One 2-channel input and one 2-channel output via 75 Ohm BNC female connectors, internally terminated; signal levels per SMPTE 276M/AES-3ID-2001

### SDI I/O

- One auto-sensing 3Gb/s HD/SD-SDI (SMPTE ST425/292M/259M) input and one output via 75 Ohm BNC female connectors, internally terminated; video formats up to 1081i/60/59.94/50Hz

### AES67 I/O

- 16-channels of bi-directional AES67 I/O in support of SMPTE ST 2110-30 workflows

## Latency (V0.0.64 Software)

- AES-3 input to AES-3 output with SRCs disabled: 30.5ms
- AES-3 input to AES-3 output with AES-3 input SRC enabled: 33.5ms
- SDI input to SDI output with SRCs disabled: 33.5ms
- SDI input to SDI output with SRCs enabled: 36.5ms
- AES67 input to AES67 output: 107ms (measurement made using Telos Alliance SDI xNode which has a latency value of 80ms)

## Clock Reference

- 48kHz reference via SDI, AES-3, PTP v2, or internal clock

## Sample Rate/Resolution/Frequency Response

- 48kHz, 24-bit, 20Hz – 20kHz

## Ethernet

- Two Gigabit RJ-45 connections, one each for AES67 and Control