The **W2AP-D1Y-R2/UL** is a high-performance industrial wireless access point, typically associated with the **Yokogawa** lineup (often part of the ISA100 wireless infrastructure). It is designed to act as a bridge between wireless field devices and a backbone network. --- ### 1. General Specifications This device is engineered for harsh industrial environments, ensuring reliable communication for process automation. | Feature | Description | | :--- | :--- | | **Model Category** | Field Wireless Access Point | | **Wireless Protocol** | ISA100.11a (IEEE 802.15.4) | | **Input Voltage** | 24V DC (Typical range 10.8 to 26.4V) | | **Mounting** | Pipe or wall mount | | **Certifications** | UL Listed (Class I, Div 2), CE, KC | --- ### 2. Key Electronic Components & Connectivity The internal architecture focuses on redundant power handling and signal integrity. #### A. Communication Ports * **Ethernet Port:** RJ45 connector for backbone communication (100BASE-TX). * **Fiber Optic (Optional):** Some variants support SFP modules for long-distance backhaul. * **Console Port:** RS-232 interface for local configuration and diagnostics. #### B. Wireless Module * **Antenna Ports:** Standard N-type or SMA connectors (depending on sub-model) for 2.4 GHz antennas. * **RF Output Power:** Adjustable to comply with regional regulations (FCC/ETSI). * **Multi-Path Mesh:** Electronics support redundant routing to ensure data packets reach the gateway even if one path is blocked. #### C. Power & Protection * **Dual Power Terminals:** Support for redundant DC power inputs to prevent shutdown during a power supply failure. * **Surge Protection:** Integrated transient voltage suppression to protect against lightning or industrial noise. * **Internal Grounding:** Specific grounding terminals to bleed off static and EMI. --- ### 3. Suffix Code Breakdown (D1Y-R2/UL) The suffix codes define the specific electronic and regional configuration: * **-D1:** Standard communication/power type. * **Y:** Usually denotes "Always" or a specific hardware revision for the regional market. * **-R2:** Refers to the wireless regulatory region (often used for specific frequency hopping patterns). * **/UL:** Indicates the unit is **UL Listed**, meaning it meets specific safety standards for the US and Canadian markets, particularly regarding hazardous locations. --- ### 4. Technical Maintenance Note When servicing this unit, ensure the **O-ring** on the housing is intact. The electronic parts are sensitive to moisture; maintaining the IP66/IP67 integrity is critical for the longevity of the internal PCB.