Clear-Com HelixNet: wired production communication

HMS-4X with HBP-2X Powerline beltpacks

This guide covers an HMS-4X main station with HBP-2X beltpacks connected over Powerline. Each HBP-2X has two keysets with listening and Talk controls for the assigned channels. Confirm the version and configuration to determine system channels and stations. If using Arcadia or HXII-BP, consult the documentation for that architecture and model.

HMS supplies power and digital audio to the beltpacks over supported Powerline cabling. Do not connect its XLR ports directly to analog two-wire partyline; linking systems requires the documented interface. In this setup, HBP-2X receives power over Powerline. When adding Ethernet stations, identify the module or interface, network, and power for each model; confirm PoE in its documentation rather than assuming it from the HelixNet name.

Prepare stations and channels

1. List the director, cameras, stage, and technicians. Define who needs to hear whom and who can talk. Name the channels and assign each beltpack’s two keysets.
2. Record the main station, module, and beltpack models, along with firmware. Map lines, branches, cables, and power. Validate load and distance using manufacturer documentation and the calculator for that assembly.
3. Save the configuration and test two-way conversations at a safe listening level. Check that technical conversations are not accidentally sent to the audience sound system and that Stage Announce reaches only its intended destination.

One person cannot be heard: what to check

1. Identify whether the problem affects the whole beltpack, one keyset, or only one person. Check power, link, and headset, then the assigned channel, listening level, and Talk at both ends. A visible Call does not confirm that voice reaches the intended listener.
2. If the connection is stable but audio passes in only one direction, check assignments and permissions before replacing cables. For a general Powerline failure, retain the status information and have qualified personnel isolate the affected branch during maintenance according to the manual. Do not connect analog partyline to perform that test.

Alternatives and inquiry

We can assess the existing assembly, rental or purchase of a compatible system, and preparation or operation. For moving users, we can compare wireless intercom; for a few fixed positions, a simpler wired setup. Start with the date, venue, approximate user count, and who needs to talk to whom. The proposal identifies the generation, interfaces, cable runs, and checks, subject to availability.

More setup questions

Documentation and preparation

HMS-4X, HBP-2X, and Powerline documentation for identifying the assembly and preparing checks.

• HelixNet — installation and Powerline precautions
• HMS-4X — connections and power
• HBP-2X — controls and keysets
• HBP-2X — menu map