Vip-801a Networked Page Zone Extender Valcom Networked Page Zone Extender Enables Voice Accessto A Single Zone Of Oneway Paging Over An Ipbased Lan/wan (this Allows Page Zone Extension Anywhere On The Network) 1 Audio Output 1 Audioinput 2 Programmable Form C Relay Closures Rj45 For Network Connection No Server Required 1 To 11 Digit Dial Plans Easy Windows Based Setup Aux Audio Input Contactclosure Available For: Audio Indication And Door Unlocking Protocols Dhcp Igmp V3 Udp Tcp Http Telnet Ftp Voice Algorithm: G.711 (64kbits/s)(ulaw) / Echo Suppression Voltage: 24 Vdc @ 250 Ma; Ieee 802.3af Compatible Class 3 Device; Regulatory: Fcc Part 15 Class A Input: Analog Device Interface (600 Ohm Input Impedance Vox And Contact Closure Input) Output: Analog Output Interface (less Than 50 Ohms Output Impedance; Frequency Response: 200 Hz 3400 Hz; Relay Closure Available) Does Not Include Power Supply (see Vcvip324) Brand: Valcom