Preface
LV3000-A series are developed by Lucida technology co., LTD (short for Lucida below). RealTone is also a compositive switching system which combined with IP voice connection and data connection. Supporting connections for 10/100M to desktop and 100Mbps to network backbone, RealTone also provides connection to VoIP voice equipments as well.
With high-performance chips and modular structure, This series IADs support 4 or 8 calls simultaneously. It also provides up-stream and down-stream network ports. The down-stream port can connect to PC directly for data and voice communication integration.

Differences of LV3000-A series
Product NO.	Differences
LV3000-A4	4 FXS ports,1 FXO port
LV3000-A8	8 FXS ports,1 FXO port

Product specification

Physical Features
Dimension (HxWxD)	250mm×47.3mm×188mm
Weight	About 1kg
Power supply	12V DC
Power	< 15W
Work environment	Temperature: 0℃ ~ 50℃ Humidity: 10% ~ 90%, no coagulation
Storage environment	Temperature: -10℃ ~ 50℃ Humidity: 5% ~ 95%
Interface	1 10M/100M Ethernet (WAN) interface, support auto MDI/MDIX 1 10M/100M Ethernet (LAN) interface, support auto MDI/MDIX 4（LV3000-A4）lines or 8 ( LV3000-A8) lines POTS interface 1 emergency bypass interface 1 12V DC power source interface
Switch	1 reset switch
Display lamp	PWR：display lamp of power supply RUN：display lamp of system status WAN：display lamp of wide area network status LAN：display lamp of local area network status POTS：display lamp of 4（LV3000-A4）/ 8（LV3000-A8） POTS interface status
Reliability	Availability of system: > 99.999% MTBF: > 100,000 hours Restoration time of malfunction: < 5min

Features of network
Protocol standard	IEEE802.3 10Base Ethernet IEEE802.3u 100Base Ethernet (Fast Ethernet) IEEE802.3x full-duplex and back – pressure semi-duplex flow control
QoS	Priority queue control based on 802.1p
VLAN/Tagging	Based on 802.1Q VLAN, identify system maintenance SIP/RTP/RTCP operation flow messages separately
IP address	1 IP address, static distribution, DHCP or PPPoE mode
MAC address	1 MAC address (fixed from factory )
Switching mode of network	Store-and-forward
Port full-duplex/semi-duplex	Auto-sensed
Throughput	148810pps
Routing protocol	Static routing

Features of voice functions
Protocol standard	SIPRTPRTCPVoice coder n G.711，G.723，
Noise control	G.726，G.729 Comfort Noise Generation & level control
Echo cancellation	G.165/G.168-2000 echo restrain
Mute restriction	Mute check and mute compression
FAX	T.30，T.38
Lag time/package-lost disposal	Lag time dithering control/ compensation
POTS interface	> 5km
Convergence ratio	1:1
Operation supported	PSTN basic operation, PSTN supplementary operation, console etc.
QoS Control	In good network condition, average PSQM <1.5 In bad network condition (package-lost ratio =1%, network delay=20ms, lag time=100ms), average PSQM <1.8 In worst network condition (package-lost ratio =5%, network delay=20ms, lag time=400ms ), average PSQM <2.0
Quality Enhancement	In good network condition, MOS>4.0 In bad network condition (package-lost ratio =1%, network delay=20ms, lag time=100ms), MOS>3.5 In worst network condition (package-lost ratio =5%, network delay=60ms, lag time=400ms): MOS>3.0