TRANSCORE ENCOMPASS 4 ACCESS SYSTEM GUIDE
The Transcore Encompass 4 is a family of fully integrated, self-contained, 915 MHz wireless radio frequency identification readers designed for industrial-grade automatic vehicle identification (AVI). It is commonly used to manage vehicle tracking, security access, parking facilities, electronic vehicle registration (EVR), traffic monitoring, and low-speed electronic toll collection.
KEY HARDWARE CHARACTERISTICS
- All-in-One Architecture: The standard RFID Antenna assembly integrates a radio frequency (RF) module, a digital signal processor (DSP), an internal antenna, and a power supply inside a single, weather-resistant polycarbonate enclosure.
- Protocol Flexibility: Transcore Encompass 4 it operates as a multiprotocol reader. Basically, depending on the exact model configuration, it can be ordered to simultaneously decode combinations of major industry protocols, including: Super eGo (SeGo) and eGo (ISO 18000-6B), ATA/AAR (American Trucking Associations/Association of American Railroads), IAG (Interagency Group).
- Built-In Wiegand Translator: For seamless deployment alongside standard security panel infrastructures, it includes an onboard translator that automatically converts incoming ATA, eGo, or SeGo data frames directly into Wiegand format.
TECHNICAL SPECIFICATIONS
The foundational operational and physical specifications for the standard Transcore Encompass 4 Antenna include:
NOTABLE ARCHITECTURE VARIATIONS & DEPLOYMENTS
Internal vs External Antenna Models
While the standard Encompass 4 features an integrated internal antenna, TransCore RFID Antenna also manufactures specific variations that support an external antenna configuration. Furthermore, this is valuable in applications where specialized beam framing or remote antenna placement is required due to structural constraints.
The Encompass 4-S (Compact Variant)
For installations requiring a smaller profile or constrained physical mounting space, TransCore offers the Encompass 4-S. Besides, this version scales down the physical dimensions (13.3 x 9.3 x 4.0 inches) while retaining multiprotocol decoding, the integrated Wiegand translator, and similar software command capabilities.
TRANSCORE ENCOMPASS 4 BENEFITS
Versatile Applications
The reader is designed for high performance across several key transportation and security sectors:
- Parking and Security Access: Ideal for managing entry to secure facilities or parking areas.
- Electronic Vehicle Registration (EVR): Supports automated tracking for official vehicle records.
- Traffic Management: Useful for monitoring and controlling traffic flow.
- Electronic Toll Collection: Specifically optimized for low-speed tolling applications.
Environmental Durability
- Wide Temperature Range: Operates reliably in extreme weather, from -40°F to 131°F (-40°C to 55°C).
- Humidity Resistance: Designed to withstand 100% condensing humidity.
Technical Compatibility and Integration
- Multiprotocol Support: It can read various tag formats, including TransCore Super eGo (SeGo), eGo (ISO 18000-6B), ATA/AAR/ISO 10374, and Interagency Group (IAG).
- Built-in Wiegand Translator: Converts data from ATA, eGo, and SeGo tags into Wiegand format, ensuring seamless compatibility with existing security systems.
- System Interoperability: Its command set is compatible with several other TransCore models, such as SmartPass, Encompass 2, and Encompass 3.
Flexible Performance and Installation
- Programmable Controls: Operators can program the RF power (from 200mW to 2W) and frequency to suit specific site needs.
- Integrated Hardware: Features a self-contained package with a water-resistant, tamper-resistant polycarbonate housing suitable for indoor or outdoor use.
- Antenna Options: Available in both internal and external antenna models to provide flexibility in coverage.
- System Reliability: Includes features for expanded tag read buffering, system integrity checking, and programmable group selection.
HOW DOES IT WORK?
The TransCore Encompass 4 operates as a self-contained radio rewuency identification system that uses high-frequency signals to identify vehicles and manage access.
Integrated Core Operations
The TransCore Encompass 4 features an “all-in-one” architecture that manages the entire identification cycle within a single, water-resistant enclosure. Because this design is self-contained, it efficiently houses several critical components that work in tandem to process vehicle data.
- RF Module: First, this module generates a radio frequency signal and broadcasts it through either an internal or external antenna.
- Digital Signal Processor (DSP): Furthermore, once a taf enters the read zone, the DSP immediately decodes the high-speed data that reflects back from the tag.
- Onboard Intelligence: Additionally, the system utilizes a command set compatible with other TransCore readers, such as SmartPass or Encompass 3, to process information and manage group selection.
- System Integrity: Finally, these internal smart features
The Communication Cycle
The TransCore Encompass 4 follows a precise sequence to identify vehicle and manage access. By streamlining these steps, the system ensures rapid and accurate data capture.
- Signal Emission: To begin the process, the reader broadcasts a signal, typically between 911.75 and 919.75 MHz in the US, to create a read zone that reaches 12 to 17 feet.
- Tag Reflection: Next, when a compatible tag, such as an eGo or SeGo sticker, enters this active zone, it reflects the reader’s signal back along with its unique identification data.
- Data Decoding: Consequently, the antenna identifies the protocol of the incoming—whether it is AT, IAG, or eGo—which allows it to communicate with various vehicle tags simultaneously.
Integration with Security Systems
Encompass 4 excels at communicating with external hardware, which makes it a standout choice for integrated security environments. By utilizing specialized interfaces, the antenna ensures that vehicle data flows seamlessly into existing management systems.
- Wiegand Translation: First, the reader features a built-in translator that automatically converts ATA, eGo, and SeGo tag data into Wiegand protocol. Consequently, standard security panels recognize the vehicle just as they would a handheld badge or key card.
- I/O Control: Additionally, the hardware includes two independent dry contact closures for sense circuits and two independent Form-C relay contacts. These components allow the antenna to receive triggers from ground loop sensors or directly activate peripheral hardware like gate arms and signal lights.
System Configuration
Authorized personnel can fine-tune the reader’s performance using specific software commands to ensure optimal operation in diverse environments. By adjusting these settings, technicians can customize the device to meet the unique requirements of each installation site.
- RF Power Adjustment: First, users can adjust the RF output power from 200mW (23 dBm) to 2W (33dBm) in 1 dB steps. Consequently, this precision allows the operator to define a specific read zone and prevents the reader from accidentally picking up tags in adjacent lanes.
- Frequency Tuning: Additionally, while the reader typically operates within FCC-authorized bands in the US, the frequency remains programmable. This flexibility helps the system avoid interference with other local wireless devices or nearby hardware.
