ACCESS Portable 2USB

An IP audio codec that sets the standard

Product Overview

Up For The Challenge

Content matters, but having the right technology is crucial for bringing any plan to life. Comrex ACCESS 2USB is a full-featured IP codec designed for the field. Rugged, portable, and versatile, ACCESS 2USB is equipped with a simple user interface perfect for the field. And with CrossLock and BRIC Technology, the most sophisticated network management technology on the market, ACCESS 2USB is able to handle even the rockiest data connections. Whether it’s a morning remote from the back of a bicycle, a drop-in from a crowded stadium, or a live news broadcast from a helicopter, ACCESS 2USB is ready for whatever you can dream up.

“I recently did a broadcast with one of our stations from Amsterdam. We flew to the city, not knowing what connectivity options were going to be available to us. We walked around the streets til our morning show host said “I wanna do my podcast from here”. I started looking for Wi-Fi, and found a local hotspot – we did a test, and had a pretty good connection, so we did one of our days from a street in Amsterdam. We found a restaurant that allowed us to set up outside and we did about 6 hours of broadcasting from there. I’ve used it from London, Amsterdam, Mexico, and we’ve had success.” – Mike Sprysenski, iHeartMedia


  • Two USB ports
  • Built-in Ethernet port
  • Built-in battery – up to 7 hours of talk time (5 hours with mixer)
  • MPEG 4/AAC algorithms included
  • CrossLock Technology
  • Optional 5-channel mixer

ACCESS 2USB Portable works with:

ACCESS Rackmount
Comrex POTS codecs (with some limitations)

IP Networks

IP networks are available virtually everywhere. ACCESS 2USB offers several ways to get connected. You can utilize the included USB Wi-Fi modem to connect to widely available HotSpots or use the integrated Ethernet ports to connect to wired DSL or broadband cable IP networks. Either of the two USB ports will accommodate connections to 3G/4G cellular data networks using Comrex supported USB devices. ACCESS 2USB also includes a USB POTS/PTSN modem for use on legacy analog phone lines.

Learn more about 3G/4G Compatible Devices here

CrossLock Technology

Quite simply the most advanced network management tool on the market today, CrossLock gives users the ability to manage and bond multiple data connections together simultaneously. When a new network is introduced, Crosslock will immediately evaluate how much bandwidth is available, while factoring in latency and jitter information, and combine the two connections to take advantage of all available bandwidth. More than just combining networks, CrossLock can also monitor each data connection individually and, when necessary, apply appropriate error correction, recovery, or concealment techniques.


With its 7-hour Lithium Ion battery, integrated mixer, easy-to-navigate touch screen, and handheld form factor, ACCESS can go (and has gone) just about everywhere.

App Compatibility

ACCESS is compatible with smartphone applications, including Linphone and Luci Live. Connect to ACCESS from your smartphone quickly and easily for easy drop-ins and spontaneous remotes.

Codec Commander

Codec Commander is a Microsoft Windows™ application you can use to control your audio codec. You can manage your connections, check statistics, view audio metering, adjust audio profiles or change system settings. Click here to learn more.



Plug-in five I/O mixer for ACCESS Portable

The Comrex ACCESS Portable is a remote broadcast tool that provides utility and portability, but has limited audio I/O built-in. The portable includes one mic/line adjustable input on XLR, one stereo line level input on mini jack, and a headphone and line-level stereo output on mini-jack.

The ACCESS Portable Mixer accessory was designed to address these limitations for applications that require multiple audio I/O for remote broadcasts. The unit “docks” to the ACCESS Portable and expands the audio I/O to five mic/line selectable XLR Inputs and five stereo Headphone Outputs on 1⁄4″ jacks. All ACCESS Portable audio connectors remain active during use of the Mixer, so the total number of Input/Headphone connector pairs increases to six.

Features & Specifications:

  • Five Mic/Line level switchable mono inputs on balanced XLR
  • Five 1/4″ TRS headphone jacks
  • Powered by ACCESS Portable
  • Mic inputs offer software selectable 12V phantom power
  • Audio level adjustments for input, headphone local and return audio
  • Stereo pan pots for channel 1 through 4 to accommodate 2 stereo inputs
  • Channel 5 selectable for Producer Mode

Comrex Connect Modems

Cellular wireless data connections like 3G and 4G LTE have redefined the way remote broadcasts are done. In particular, USB cellular modems make connecting to these networks fast and simple. But the number of USB cellular data devices offered by cell phone providers is dramatically decreasing in favor of cellular Wi-Fi Hotspots. Additionally, many of the off-the-shelf modems offered by carriers are not designed to meet the rigorous demands of the 24/7 news cycle.

Comrex designed the Comrex Connect Modem to support the unique needs of remote broadcasters. A high-powered, industrial strength 4G/LTE modem, the Connect Modem is also 3G compatible. Outfitted with a high-gain antenna, the Connect Modem is more powerful than most USB data modems available on the market, to handle the heavy data load of an IP audio broadcast. The Connect Modem comes in three varieties to support connections to Verizon, AT&T, and International networks, and has been PTCRB and carrier certified to meet all necessary regulations.


  • Industrial strength; designed for broadcast
  • Available for Verizon, AT&T, and international carriers
  • Unlocked, carrier approved, PTCRB certified

Comrex Connect modems are unlocked, carrier approved, and PTCRB certified. They come in three different models for ACCESS Portable 2USB:

Comrex ACCESS Connect-Verizon (CAC-V)

  • 4G LTE – Band 13 (700 MHz) and Band 4 (Advanced Wireless Service (AWS)-XLTE)
  • *Note this model only supports 4G LTE.
  • No 3G support is offered Uses full size SIM card only

Comrex ACCESS Connect-AT&T (CAC-A)

  • 4G – Band 17 (700MHz) Band 5 (850 MHz) Band 4 (AWS) Band 2 (1900 MHz)
  • 3G – Band 5 (850 MHz) Band 2 (1900 MHz)
  • Uses full size SIM card only

Comrex ACCESS Connect-International (CAC-I)

  • 4G – Band 41 (TDD) (2500 MHz) Band 30 (2300MHz) Band 29 (700 MHz) Band 26 (850 MHz) Band 25 (1900MHz) Band 20 (800MHz) Band 13 (700MHz(c)) Band 12 (700MHz(a)) Band 8 (900 MHz) Band 7 (2600 MHz) Band 5 (850 MHz) Band 4 (2100/1700MHz) Band 3 (1800 MHz) Band 2 (1900 MHz) Band 1 (2100 MHz)
  • 3G – Band 8 (900 MHz) Band 5 (850 Mhz) Band 4 (2100/1700MHz) Band 3 (1800 MHz) Band 2 (1900 MHz) Band 1 (2100 MHz)
  • Uses full size SIM card (micro SIM slot available also)

Comrex Connect Modem EXT

Leverage the power of two Comrex Connect Modems with your ACCESS codecs for twice the reliability. ACCESS Connect Modem EXT includes one modem and an extended bracket.

AT&T, Verizon, and International versions are available.

Extra Small Case

Watertight, crushproof, and dust proof to ensure the best protection for your ACCESS Portable.

Exterior Dims:
L 15.4″ x W 12.1″ x H 6.8″

Contact a dealer to purchase

Small Case

Durable travel case, perfect for carry-on or shipping. Mixer cutout. Multiple foam inserts available.

Exterior Dims:
L 19.5″ x W 16″ x H 8.25″

Contact a dealer to purchase

Large Travel Case

Durable road case with rolling wheels and retractable handle.

Exterior Dims:
L 25.4″ x W 19″ x H 14.25″

Contact a dealer to purchase



  • Two USB ports
  • Data networks supported: modem connections, 3G/4G cellular links, and Wi-Fi or Wi-Max Access cards
  • Battery life: 7 hours of talk time (5 hours with mixer)
  • Backward compatibility to Comrex POTS codecs
  • MPEG 4/AAC algorithms available.
  • Optional mixer: provides up to 6 mono inputs/headphone outputs & stereo inputs (when connected to ACCESS Portable 2USB)
  • Optional custom cases available
  • MIC/Line switchable mono input on balanced XLR with adjustable level control
  • MIC input offers switchable 12v phantom power
  • Stereo headphone output on ⅛” (3.5 mm) mini jack with adjustable volume control
  • Stereo analog line level inputs/outputs on unbalanced 1/8 “ (3.5 mm) mini jacks
  • “Hands free” cellular connection on ⅛” (3.5 mm) mini jack
  • Audio level meters available via integrated LCD interface
  • Two USB ports for POTS modem or Wi-Fi modem (both included), and optional 3G/4G devices
  • 10/100Base-T Ethernet connector
  • Mini-DIN connector for serial ancillary data
  • Mini-DIN connector for contact closures (4)
  • Multi-pin connector for optional mixer



Audio Connections

  • Mono In: 3-pin XLR female, pin 1 ground, pin 2 +, pin 3 –
  • Stereo Line In: 1/8″ (3.5mm) female, tip=left, ring=right, sleeve=gnd
  • Line Out: 1/8″ (3.5mm) female, tip=left, ring=right, sleeve=gnd
  • Headphone Out: 1/8″ (3.5mm) female, tip=left, ring=right, sleeve=gnd
  • Mobile In/Out: 1/8″ (3.5mm) female, tip=send, ring=receive, sleeve=gnd

Audio Specifications – Mono Input

  • Type: Balanced
  • Impedance – Mic: 20k Ohms (pins 2-3) | Line: 200k Ohms (pins 2-3)
  • Level: Mic: -60 dBu nominal, -15 dBu max Line: 0 dBu nominal, +20 dBu max

Audio Specifications – Stereo Input

  • Type: Unbalanced
  • Impedance: 9k Ohms (tip to sleeve, or ring to sleeve)
  • Level: -10 dBu nominal, +10 dBu max

Audio Specifications – Line Output

  • Type: Unbalanced
  • Impedance: 0 Ohms (tip to sleeve, or ring to sleeve)
  • Level: Normal: -10 dBu nominal | Professional: 0 dBu nominal

Other Connections

  • Serial: 8-pin DIN female
  • Contact Closures: 9-pin DIN female
  • USB: USB Type A
  • Ethernet: 8-pin modular, 100BASE-T wiring
  • Power: 5-pin DIN female, pins 3+5 +15V, pins 2+4 ground

Power & Physical

  • Voltage AC: 100-240 VAC, 50-60 Hz
  • Power: 24 Watts with all peripherals
  • Size (w/ battery): 4.75″ W (12.1 cm), 8.25″ D (21 cm), 2.5″ H (6.35 cm)
  • Weight (w/ battery): 2.2 lbs (1.0 kg)


ACCESS 2USB Power Supply


IEC Power cord not included.

12V DC Adapter


12V DC power adapter for use with ACCESS Portable, BlueBox and Matrix Portable.

Stand-alone Rapid Charger


Perfect stand-alone charger for your ACCESS Portable batteries.

Spare Battery


Wi-Fi Adapter (Domestic)


Wi-Fi Adapter (International)


Power Cord (EAC Socket)


Serial Cable


DB9F to mini-DIN 8M.

Contact Closure Cable


DB9M to mini-DIN 9M.



Dock cover for Mixer port




Strap Bracket


Qty 1.  Order 2 if needed.


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