Caltta Railway General-purpose Two-way Radio RH556

The RH556 is a cost-effective railway general-purpose two-way radio meticulously developed by ZTE Caltta in compliance with the technical standards for railway-specific intercom equipment. It conforms to railway business specifications, featuring rich intercom functions, excellent radio frequency performance, simple and convenient operation, clear and loud audio, and long-lasting battery life, which can fully meet the frontline communication demands of the railway industry. The whole device adopts the classic two-way radio layout with screen/navigation keypad interaction, a high-strength dual-color body, a sturdy alloy frame, and a high-level waterproof seal, ensuring durable use in harsh outdoor environments. The RH556 will bring railway users a comprehensive digital communication experience and provide solid support for reliable communication.

Designed and manufactured in strict accordance with the technical standards for railway-specific digital intercom equipment, it fully meets all functional and performance indicator requirements.
It supports digital conventional mode: Compliant with the digital conventional standards (PDT/DMR), it provides high-quality digital conventional voice services that meet the high standards of work communication, enabling quick responses to calls from professional customers anytime and anywhere. Compared with traditional analog technology, the dual-slot technology can double the channel capacity, thus greatly alleviating the growing pressure of spectrum resource shortage.
Digital-analog compatibility to protect user investment: In addition to the digital conventional mode, it is also compatible with the analog conventional mode, which can be used in the user's existing network environment with stronger applicability, so as to protect the existing investment of professional customers and support the smooth transition of professional customer networks.
Excellent radio frequency performance: Through the carefully matched and optimized hardware circuit combined with an integrally formed long helical antenna, the whole device boasts outstanding radio frequency performance and higher receiving sensitivity, enabling longer-distance intercom communication connections.
Clear and loud audio: The carefully optimized audio circuit and structural sound cavity design, paired with a high-performance noise-reducing audio encoder, ensure loud sound while maximally preserving the fidelity of the user's voice. Even in noisy environments, users can accurately identify the caller and clearly hear the call content.
Large battery capacity for long endurance: Equipped with a standard 2500mAh battery and combined with the power-saving design of digital technology, the terminal's service time is greatly extended to meet the long-hour work demands of frontline railway personnel.
Supports call recording: According to user demands, it provides a long-duration call recording function. The recording files are stored locally on a daily basis and can be exported to a computer for playback by querying the index information.
Supports clock retention: Built with a complete clock retention circuit, the device can maintain its internal clock for up to three months even when the main unit is separated from the battery, providing effective timing guarantee for daily work and call recording.
Supports flashlight function: A high-brightness LED lighting module is arranged on the back of the device, which can realize the spotlight flashlight function with an effective distance of 3 meters, facilitating users to use it for lighting at night.
Supports voice broadcast: Through the voice broadcast function, it can quickly feed back the channel, battery level and clock information of the two-way radio, helping users better grasp the device status.
Rich service functions: In addition to supporting standard voice services and data services, it can also provide a wealth of supplementary services such as lone worker protection and two-way radio inspection. According to user demands, service expansion can be continuously carried out later through firmware upgrade to improve the practicability of the terminal and help users carry out work more efficiently.
High level of security: The hardened real-time operating system and customized applications guarantee the security of the terminal. Customers can further obtain higher security performance through software-based voice/data encryption.
Rugged and reliable quality: The whole device meets the IP68 protection rating, making it suitable for outdoor work. Multiple indicators such as impact resistance, vibration resistance, and solar radiation resistance meet high reliability standards, enabling it to adapt to various harsh working environments.