The **SRCOOLNET** is a network management accessory designed for Tripp Lite SRCOOL portable cooling units. It effectively transforms a standalone air conditioner into a managed network device. Below is a breakdown of its electronic components, architecture, and technical specifications. --- ## 1. Core Electronic Components The SRCOOLNET functions as a specialized web-based controller. Its internal hardware is designed to interface with the cooling unit's logic board and translate data into Ethernet protocols. | Component | Description | | :--- | :--- | | **Microprocessor** | An embedded CPU that handles the SNMP (Simple Network Management Protocol) stack and web server logic. | | **Ethernet Controller** | A standard RJ45 interface supporting 10/100 Mbps data rates for network connectivity. | | **Serial Interface** | The internal connection point that plugs into the SRCOOL unit's proprietary communication port. | | **NVRAM/Flash Memory** | Stores firmware, configuration settings (IP addresses, thresholds), and local event logs. | | **Status LEDs** | Indicators for Link, Activity, and Status to provide hardware-level diagnostics. | --- ## 2. Functional Architecture The SRCOOLNET acts as a bridge between the physical cooling hardware and the digital management network. ### A. Data Acquisition The card polls the SRCOOL unit's internal sensors for real-time telemetry, including: * Evaporator and Condenser temperatures. * Compressor status (On/Off). * Fan speed settings. * Water tank levels (for condensate management). ### B. Remote Logic Control The electronics allow for remote command execution. When a user sends a command via the web interface, the SRCOOLNET converts that command into a signal the AC unit's control board understands to: * Change the set point temperature. * Toggle power modes. * Reset alarms. --- ## 3. Connectivity & Protocols | Feature | Specification | | :--- | :--- | | **Protocols Supported** | HTTP, HTTPS, SSH, SNMPv1, SNMPv2, DHCP, NTP. | | **Integration** | Supports PowerAlert Software and third-party NMS (Network Management Systems). | | **Security** | Radius, LDAP, and encrypted web access. | --- ## 4. Envirosense Port (Expansion) Most SRCOOLNET modules feature an auxiliary **PS/2 or USB-style port** intended for an **Envirosense** (E2MTU) sensor. * **Electronics:** This adds an external thermistor and hygrometer to the system. * **Benefit:** Allows the unit to cycle based on the temperature at a specific rack location rather than just the air entering the AC unit.