Environmental
32° to +104°F (0° to +40°C)
0 - 90% relative humidity
IP53 rated
Dimensions
3.9 x 5.3 x 1.7in (WxHxD)
99 x 135 x 43mm (WxHxD)
Weight
12.2oz (0.35kg)
Network Specifications (Firmware Version 4.5+)
Network Protocols
Ethernet IPv4–Unicast Audio and Control
mDNS–Multicast Device Discovery
Layer 3 routable with mDNS function limitations
HTTP–Management
I.V. Core–Decentralized Network Routing & Mixing
IVP–Proprietary intercom Audio and Control
WavPack–Audio Codec
Network Ports
Unicast:
Port 80 TCP–System Management
Port 6001 TCP–System Management
Port 6001 UDP–Audio Streams
Multicast:
Port 5353 UDP–mDNS, Names, Discovery, Linking
Optional for device names and linking
Network Parameters
HMS-4X Endpoint Resource Use: 1 (-X4)
HMS-4X Endpoint Resource Use: 2 (-X5)
Bandwidth:
300 (max) kbps from each beltpack to Arcadia/HMS-4X
1200 (max) kbps from Arcadia/HMS-4X to each endpoint
Network Jitter Tolerance: <= 128ms jitter buffer per audio stream receiver automatically adjusted to network performance
QoS Tags: DSCP=34, Assured Forwarding (AF=41)
Link-Local Default IP Address Range: 169.254.0.0/16
System Reserved IP Range:
10.0.0.0/24 for endpoints on HMS-4X
10.0.0.0-7 for Arcadia
Recommended 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 option
Please refer to the Clear-Com HelixNet Network Guide for additional switch settings and network characteristics.
1Ethernet to legacy HMS-4X requires HLI-ET2
2HMS-4X is a legacy product