Public address system control system KNTD-50PA

Power consumption (W)6 W maximum Number of channels - Unlimited Number of Ethernet ports 2 Ethernet type: 100BASE-TX;1000BASE-T Protocols and interfaces: SIP and SIP TRUNK Sample rate (kHz)8 kHz Pre-Installed Operating System Linux Configuration Web server Encryption: AES 128; TLS Real time clock synchronization NTP Daylight saving time correction Automatic Message storage (min)100 min Number of events (storage) 5000 Protection Watchdog; RSTP Operating temperature (°C)-5 - 50 °C Color Black Case Material Steel Dimension (H x W x D) 440mm (L) x 280mm (W) x 44mm (H) Rack unit 19 in, 1U Weight (kg) 5.80 kg  Capability to control a system with up to 50 IP devices, serving more than 50 zones.  A+B dual redundant system controller option for highest system availability  Internal storage capacity for messages and tones;  Multi- messages can be played back simultaneously and independently;  Internal real time clock for scheduled events and event time stamping;  Support for Network Time Protocol (NTP) with automatic adjustment for time;  Internal system event and fault event log;  Built- in web server for configuration and file management using a browser.