The ARC Solo includes many of the powerful features of the ARC Plus while offering the simplicity of a self contained remote control unit. 16 meters, status and relays are all available on the rear apron. Macros, email notifications and even the new recordable speech interface are built in. For uncomplicated remote control, there is nothing else to buy.Main Features:IP-based broadcast remote controlEasy operator access via web, PC software, smartphone or telephoneEmail alerts and selective alarm reporting for efficient fault resolution16 meters, status and relays, all available on the rear apron for a complete, single unit remote controlUpdated Firmware Version 1.0.29 availableSpecifications:Dimensions: 3.5″ (8.89 cm) H 19″ (48.26 cm) W 12″ (30.48 cm) DOperating Temperature: 0 to 40 CPower Requirements: 100 to 240VAC, 4763Hz, 1A; Power entry module with standard, grounded power cord supplied; 1A fuse protectionChannels: 16 status, 16 metering, 16 relaysMetering Input Range: -10 to +10VDC> 99.75% accuracy, full scaleStatus Input Range: 0 to +28VDC or switch closure <.5 VDC = ON; >2.1VDC = OFFRelay Contacts: Form C;momentary or latching; max 5A, 240VACFront Panel Indicators: Red/Green LEDs for Alarm, Remote; Power indicated by any lit LEDFront Panel Control: Remote (maintenance lockout)Rear Panel Connections Combicon: 16 Relay Contacts (48pins) 16 Status Inputs (24pins) 16 Meter Inputs (24pins)RJ-11: Telco RCA Phono: Audio Out, Audio In RJ-45: Ethernet RJ-11: Sensors (future) IEC: PowerCommunications: Ethernet, Web Server, Dial-upTelephone Interface: RSI Recordable Speech Interface built-in. Includes standard broadcast vocabulary; ability to record custom phrasesAutomatic Functions: On-board macrosEmail : 10 email lists of up to 20 email addresses each