The Ermetris Intelligent Gooseneck allows user-friendly communication between passengers and train staff, driver or ground station.

It’s designed for ready-to-use professional high availability train borne IP systems. It’s designed to withstand the mechanical, electrical and environmental stress encountered in metro, train or tram installations.

A wide operating temperature range ensures reliable operations from -25° to +70°C continuous.

The communication happens in full duplex mode via VoIP custom or SIP: the audio streaming, compressed in MP3 format, requires a very limited bandwidth allocation, allowing a flowing conversation also in low priority connections. Easy installation: deployment, installation and set-up are easy thanks SNMP protocol.

Click below to download datasheet

SKU: 011 Category: Tag:


Technical specification:


General features

  • Microfono Goosenek
  • Loudspeaker 8Ω/3W
  • 2 Pushbutton on the Gooseneck
  • Green and red status LED


  • Ethernet interface with M12 D connector
  • G.711 (u-law, A-law) Decoding and Encoding
  • IP Streaming via TCP, UDP, Multicast
  • Embedded, robust OS, IP stack with support for TCP/IP, UDP, DHCP, SNMP v.3, Multicast
  • Integrated web server (control/configuration)

Power supply

  • 9-36VDC power supply on M12 A-Code connector
  • Consumption: 12W@24VDC (max)

Physical characteristics

  • 132 x 200 x 45,1 mm (L x H x D) (can change according to the project customization)
  • Front panel: aluminium

Environmental characteristics

  • Operating temperature range: -25 to +70°C EN50155 class T3
  • Ingress protection rate: IP32 (front)
  • EN 50155 for Railway applications
  • EN 61373 Random Vibration & Shock Testing
  • EN 50121-3-2 Railway applications. Electromagnetic compatibility
  • EN 45545-2 Fire and smoke

Order code

  • PH-4000-00, Emergency Intercom , SIP VOIP protocol , M12 D code Ethernet Power over ethernet (to be available soon)
  • PH-4000-01, Emergency Intercom , Ermetris Audio protocol , M12 D code Ethernet Power over ethernet