Main Features:Easy to use front panel with OLED display & backlit keys2 Keysets assignable to channelsStacked keys allow unique combination of channelsIndependent Program Audio controlUSB call signal flasherBinaural controls on HXII-BP-X5Ethernet Network port with PoE(1)Powerline via XLR cable to HMS-4X(2/3)Multiple mounting optionsRugged, lightweight polycarbonate enclosureIP53 environmental ratingWired Partyline – NetworkedHosted by Arcadia or HMS-4X(3)Up to 24 Channels LicensedUp to 64 HelixNet EndpointsProgram Audio user level controlEasy to use CCM browser configurationFast front panel control & configurationCentral discovery & pairing on ArcadiaPlug-and-go powerline to HMS-4X(2/3)Central firmware upgrades from hostSpecifications:HelixNet System Hosts:-Arcadia: Supports up to 64 HelixNet endpoints (HRM-4X, HKB-2X & HXII-BP) over Ethernet. Up to 24 Channels can be HelixNet Enabled using a Licensed Port for assignment to any HelixNet endpoints keyset.-HMS-4X: Supports up to 64 endpoints (HRM-4X, HKB-2X, HBP-2X, HXII-BP, HLI-2W2, HLI-4W2, LQ port). User stations can connect via the 2 Powerlines (note power and data limits) or over Ethernet via optional HLI-ET2 module. HMS allows use of 12 channels which can be expanded to 24 using optional license.Connectors:-XLR Powerline**: 3-pin XLR-F-LAN/PoE: RJ45 etherCON-Headset: 4-pin XLR-M (-X4) or 5-pin XLR-F (-X5)-USB: Micro ABMicrophone Pre-Amplifier:-Headset Mic Impedance: 200 (Dynamic)-Headset Mic Voltage: 1.7V (Electret selectable)-Limiter: +23dB-Route to 4-wire output at 0dBu out: Mic Gain: 60dB (Dynamic), 45dB (Electret)-Frequency Response: 300Hz 10 kHz 3dB, contoured for intelligibility-Distortion: <0.2% THD @ 1kHz-Noise: <-55dBu (Dynamic), <-65dBu (Electret)Headphone Amplifier:-Load Impedance: >32 -Output Level: +12dBu before clipping-Sidetone: -12dB (selectable) -Route from a 4-wire input at 0dBu in: Max Gain: 0dB-Frequency Response: 40Hz – 10kHz 3dB-Distortion: <0.2% THD @ 1kHz-Noise: -65dBu-Headphone Limiter: 0dB (selectable)Device Power: -Voltage: 48V DC-Current (Max): 0.09A-Power (Max): 4W-BTU (Max): 13BTU/hr-This unit can be powered via: PoE - Power over Ethernet*: IEEE 802.3af-2003 - Class 1-PSE: 4.0W DC max @ Power Source Req. -PD: 3.84W DC max @ Powered Device Draw-Powerline**: Input Voltage: 29.5V DC-Input Current (Max): 0.13A-Powerline Utilization: HXII-BP = 1 beltpack Note the maximum Powerline capacity of the HMS-4X Use HelixNet Cable Calculator to validate load and cable distance.Environmental: 32 to +104F (0 to +40C) 0 - 90% relative humidity IP53 ratedDimensions:-3.9 x 5.3 x 1.7in (WxHxD) -99 x 135 x 43mm (WxHxD)Weight: 12.2oz (0.35kg)Network Protocols:-Ethernet IPv4Unicast Audio and Control-mDNSMulticast Device Discovery Layer 3 routable with mDNS function limitations-HTTPManagement RTPAudio Transport WavPackAudio CodecNetwork Ports:-Unicast: Port 80 TCPSystem ManagementPort 6001 TCPSystem ManagementPort 6001 UDPAudio Streams-Multicast: Port 5353 UDPmDNS, Names, Discovery, Linking Optional for device names and linkingNetwork Parameters: -Endpoint Resource Use: 1 (-X4 variant) -Endpoint Resource Use: 2 (-X5 for binaural) -Bandwidth: 300 (max) kbps from each HXII-BP to HMS 1200 (max) kbps from HMS to each endpoint-Network Jitter Tolerance: <= 128ms jitter buffer per audio stream receiver automatically adjusted to network performance-QoS Tags: DSCP=41, Assured Forwarding (AF) -Link-Local Default IP Address Range: 169.254.0.0/16-System Reserved IP Range: 10.0.0.0/8 for endpointsRecommended Ethernet Switches: -Managed Ethernet Switch Layer 3-100/1000 Base-T ports for endpoints-1000 Base IP Trunks between switches-QoS configuration-Energy Efficient Ethernet bypass option-IGMP Snooping bypass optionPlease refer to the Clear-Com HelixNet Network Guide for additional switch settings and network characteristics.*Ethernet to HMS-4X requires HLI-ET2**Not available for Arcadia. Contact Clear-Com