PRS‑1AIP1 is an ip-based universal audio device that supports VoIP and IP voice transfer applications. It is an ideal solution for closing audio and contact links through long LAN and WAN networks, such as large shopping centers, tunnels, train stations and train stations. It can be extended and connected to Praesideo and traditional non-networked public broadcasting systems without the need for PC involvement. The device is equipped with analog audio input and output, which can be easily connected with the selected pilot tone monitoring equipment to broadcast emergency voice information. All audio input can be switched to microphone sensitivity with built-in microphone monitoring function. In addition, control input can also provide cable and connection monitoring functions. Control inputs and outputs can be used to set up an audio connection to initiate a remote call or to transmit a remote failure event to a system controller. Basic function audio supports multiple audio formats: single channel; Full duplex 16-bit PCM or g. 711 (extremely low latency); Dual channel send or receive MP3 (high quality audio with multiple sampling rate and compression Settings). The device is equipped with two - way balanced line input and two - way balanced line output. Among them, all the inputs can be configured as balanced microphone input with phantom power source, which can be used for the monitoring of the standing body/capacitor microphone and the microphone connection. The output level can be configured as required. In addition, the device also supports the use of 20 kHz pilot tone for audio connection monitoring, and can detect the audio input from the transmitter and regenerate the audio output from the receiver. The settable audio delay can be used for manual delay adjustment during audio playback to achieve synchronization between speakers, such as in tunnels. Audio transmission audio signals can be transmitted by unicast to up to 16 receivers, pre-configured or activated control inputs. These receivers can also relay incoming audio streams to other receivers. Broadcasting is also supported if the interface is on the same LAN. In PCM and g.711 (uLaw and aLaw), full-duplex audio connections can be made between the two devices. The control input and output device is equipped with eight control inputs containing configurable monitoring functions to monitor open and/or short circuit conditions. 8 control outputs have dry relay contacts. Control input can be transmitted to control output for remote operation, or fault information can be transmitted between audio transmitter and receiver in two directions. In addition, users can configure control input to change the way audio is routed. The device also provides an additional dry relay contact to indicate equipment failure such as high temperature fault. The network interface device can connect to 10 and 100 Mbit Ethernet and publish the IP address provided to it by the DHCP server. It can also search for available IP addresses from the network or specify a static IP address for them. A second Ethernet connection can also be used to achieve network redundancy. In addition, the device has a built-in RS 232 interface for transferring other serial data over an IP network. Power the device provides two power connections (main input and standby input) and can monitor the two power sources. Control and indicator light (front), concave type reset button, 2 network status LED lights, eight control input status leds interconnected components control input (back), 8 road, is located in a European connector, 8 channel control output, is located in a European connector, fault relay output, is located in a European connector, two-way balanced audio input (line road input, 1 line road/receiver entered), located in Europe type connector, balanced audio output 2 road, is located in the continental connector, two Ethernet connection, On the RJ45 RS 232, is located in the Sub ‑ D on RS 485, is located in the continental connector on the main power supply, is located in the socket, standby power, is located in the continental connector on the certificate and electromagnetic compatibility EN55011 recognition: 2009 (level of restrictions: B) en50130-4:19 95 + A1:1998 + A2:2003 electrical safety IEC60065 (CB‑scheme) certification CE mark certification en54-16 (0560-cpd-10219002 /AA/04) regional certification European CPR EU_CPR CE COC CE CertAlarm CE attachment number component 1 prs-1aiip audio interface 1 power supply 1 Connector suite specification electric external power supply 1 18 to 56 VDC external power 2 18 to 56 VDC power 8 W (maximum) (1) audio input microphone input sensitivity - 48.5-26 1360 ohms dBV impedance frequency response 100 Hz to 15 kHz SNR > 60 dB supervision and detection of electret: 0.4-5 mA dynamic: (120-1300 ohms line input audio input 1 and 2) the sensitivity of 16.5 to the euro 22000 + 6 dBV impedance frequency response 20 Hz to 15 kHz SNR > 70 dB pilot tone detection level input (only 2) - 30 dBV circuit output (audio output 1 and 2) level 6 dBV (maximum) pilot tone level output (only 2) - 20 dBV (20 kHz) audio format MPEG 1 ‑ layer 3 (MP3) 32, 44.1, and 48 kHz sampling rate coding is as high as 192 KBPS VBR decoding of up to 320 KBPS (3 d) and MPEG 1 ‑ 2 layer 16, 22.05, and 24 kHz sampling rate g. 711 uLaw, aLaw (sampling rate of 8, 24 or 32 kHz) PCM 16 bits (sampling rate of 8, 24 or 32 kHz) 8 x control input connector can remove the screw terminal operation make contact (monitoring) Control/fault output 8 x/x 1 connector can remove the screw terminal operation contact (SPST, no voltage) level 24 V, 0.5 A Ethernet 1 and 2 double RJ45 connector, DTE pin layout standard 802.3 802.3 I/u 10/100 Mbps speed, adaptive traffic full-duplex/half duplex, Adaptive protocol TCP/IP, UDP, RTP, SIP, IGMP, DHCP, SNMP RS 232 / RS 485 RS 232 interface 9 pin Sub ‑ D convex type, DTE pin cloth RS 485 interface removable screw terminal pin layout from 300 to 115.200 potter set 9600, 8 (default), N, 1