Arrakis MARC-PHN Phone Input Module

What This Arrakis MARC-PHN Phone Input Module Actually Is This is the dedicated phone input module for the MARC-15 console, giving you a purpose-built way to connect an external phone hybrid directly into your modular mainframe for call-in programming. Since the MARC platform treats every function as an independent module, this phone module slots into any available position in your mainframe and handles the full range of connections and controls needed to properly integrate a phone hybrid, including relay isolated logic control and a built-in mix-minus feed. The MARC-15 mainframe supports up to two of these modules simultaneously, giving you the ability to connect and manage two separate external phone hybrids at once, with each module controlling its own hybrid independently. How This Module Handles Live Caller Audio and Control Each phone module connects to and controls a single external phone hybrid using relay isolated logic, meaning the module's on-off buttons directly actuate that connection without introducing electrical noise or ground loop issues into your signal chain. The mix-minus feed sent to the caller is built from a combination of your Program, Audition, and Utility output buses, giving the caller a clean, properly mixed signal to hear the show without picking up an echo of their own voice through the phone line. This is the core mechanism that lets stations put callers on air cleanly, and having it handled through relay isolated hardware rather than a simpler workaround gives you a considerably more dependable connection for regular call-in programming. Why the Off-Line Button Gives Operators Real Control Before Going Live A dedicated Off-Line button on this module lets you switch the caller into a mode where they hear only the console operator's mic, rather than the full program mix, giving you a genuine screening and preparation step before putting someone live on the air. Once you take the module out of off-line mode, the caller's mix-minus automatically switches back to the standard blend of your three output buses, meaning the transition from screening a call to putting it on air happens cleanly through a single control rather than requiring manual reconfiguration each time. A dedicated Cue button also lets operators listen to the caller privately, off the main program feed, giving you one more layer of control before a caller actually reaches your audience. Why Cross Talk Support Between Two Phone Modules Matters Because the MARC-15 mainframe supports two phone modules with cross talk between them, each phone module's mix-minus bus specifically includes the other connected phone module, meaning two separate callers can actually hear each other as part of a conference-style call setup. This is a meaningful capability for stations running call-in shows that regularly connect multiple callers simultaneously, debate-style segments, or any programming format where two outside phone connections need to interact with each other rather than being handled as entirely separate, isolated calls. Why Relay Isolated Logic Design Protects Your Signal Chain The logic controlling each connected phone hybrid runs through relay isolation specifically to prevent the kind of ground loop and noise issues that can plague less carefully engineered phone integration setups. This matters considerably in a live broadcast environment, where unexpected noise introduced through a poorly isolated logic connection could bleed into your program audio at exactly the wrong moment. Building this isolation directly into the module itself, rather than requiring external isolation hardware, keeps your overall phone integration setup considerably cleaner and more reliable. How This Module Fits Into Your Overall MARC-15 Configuration Because every module in the MARC-15 system is independently swappable, adding one or two phone modules to your mainframe configuration is straightforward, simply populate the appropriate slots alongside whatever combination of mic, line, USB, Bluetooth, and studio monitor modules your studio also needs. The mainframe's limit of two phone modules keeps your call-handling capability properly organized within the console's overall logic system, giving most stations exactly the call-in capacity they need without unnecessary complexity. Who Should Be Adding This Module to Their MARC-15 Console This module is essential for any station running a MARC-15 mainframe that handles call-in programming, whether that's talk radio, listener call-ins, contest lines, or any format regularly bringing callers on air through an external phone hybrid. It's particularly valuable for stations running two simultaneous callers or conference-style segments given the cross talk capability between two connected phone modules. For any facility building out or expanding phone integration on their MARC-15, this module delivers the specific hardware and logic control that functionality depends on.