Connectors

LAN A and B: (2) EtherCON RJ45

LAN Network Connection

10/100 BaseT
DHCP Capable
Configured for Daisy-Chaining

Dimensions

2.2 x 7.4 x 1.5in (HxWxD)
(57 x 187 x 39mm)

Weight

13oz (0.35kg)

Network Specifications (Version 4.2+)

Network Protocols

Ethernet IPv4–Unicast Audio and Control
mDNS–Multicast Device Discovery
Layer 3 routable with mDNS function limitations
HTTP–Management
RTP–Audio Transport
WavPack–Audio Codec

Network Ports

Unicast:
Port 80 TCP–System Management
Port 655 TCP–Link Group Audio/Database Communication
Port 6001 TCP–System Management
Port 6001 UDP–Audio Streams

Multicast: Port 5353 UDP–mDNS, Names, Discovery, Linking, Expansion
Optional for device names and linking

Network Parameters

HMS-4X Endpoint Resource Use: None
Bandwidth: 300 kbps per audio input linking between HMS/LQ
Link Group audio sent dynamically between members
300-600 (max) kbps from an active audio input to HMS
1200-2400 (max) kbps from HMS to 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 Ranges: 169.254.0.0/16
System Reserved IP Ranges:
10.0.0.0/8 for endpoints
172.23.0.0/16 for Link Group

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