Final answer:
Without specific context or equipment details, it is impossible to accurately answer which 'breaker' should be pulled to establish communications when media is not loaded. The term 'breaker' usually refers to a circuit breaker but may have a different meaning in certain technology contexts.
Step-by-step explanation:
To answer the question "What breaker has to be pulled to establish comms with base when media is not loaded?" it is necessary to have the specific context of the equipment and system being used. Generally, the term 'breaker' could refer to an electrical circuit breaker, which is a safety device designed to protect an electrical circuit from damage caused by excess current typically as a result of an overload or short circuit. However, in certain technical communication systems, 'breaker' could be a jargon term referring to a switch or protocol that must be engaged or disengaged to establish communication. Without the specific details, it is impossible to provide an accurate answer to this question.
It is important to consult the user manual or technical guidelines of the system in question to determine which 'breaker' should be pulled when the media is not loaded. Only then can a definitive answer be given. If you have access to these documents, please reference the section on establishing communication without media present, and you should find the proper procedure and the specific 'breaker' that needs to be pulled.