A&E Specification, STENTOFON Turbine

Introduction

The scope of this document is to provide a specification for the features and capabilites of the new STENTOFON Turbine intercom range.

The document can be used as input to engineering specifications and well as providing a technical background for the Turbine intercom.

The specification consists of the following main chapter:

Overview Labeling, buttons and icons Audio quality Environmental robustness IP networking and security Security services Remote control Installation, service and maintenance Annex, technical drawings

STENTOFON Turbine Overview

The Turbine Series is designed for the most demanding environments where communication is critical. The stations are extremely robust - they are dust proof, water and vandal resistant, with all electronics enclosed by a 3mm thick, aluminum die-casted base. This base is even further reinforced by a faceplate in either stainless steel or plexiglass.

This durability, in addition to its superior audio quality and modern design make the Turbine Series revolutionary in its approach to audio communications.

Dare we call it an intercom?

TCS-11008111010 / TCA-11008114010

Yellow plexiglass front plate with one button + M and C Perfect for Industrial Applications

TCS-2 1008111020 / TCA-21008114020

Stainless steel front plate with one button Perfect for Building Security and Public Environments

TCS-3 1008111030 / TCA-31008114030 Black plexiglass front plate with one button Perfect for Building Security and Public Environments

TCS-41008111040 Black plexiglass front plate with one labelled button Unique labelling solution with PMOLED display Perfect for Building Security & Public Environments

TCS-51008111050 Black plexiglass front plate with two labelled buttons Unique labelling solution with PMOLED display Perfect for Building Security and Public Environments

TCS-61008111060 Black plexiglass front plate with scrolling unit for calling to an

unlimited number of places PMOLED display Perfect for Building Security and Public Environments

Labeling, buttons and icons

Labels

IP door stations shall have vandal proof call labels. The call labels shall have backlight.

It shall be possible to change call labels remotely via a web browser.

Buttons All buttons shall have backlight.

All buttons shall give visual and acoustic feedback when pressed.

Icons and pictogramsAll IP intercoms shall have call icons according to IEC/EN81-28.The standard defines following icons and call indications:

Figure 1 Idle and no call – Pictograms dimmed.

Figure 2 Call initiated and ringing state – Yellow light b ell Icon

Figure 3 Call answered and active state – Green light talk icon

All IP door intercoms shall support following icons:

Insert figure door icons.

Audio quality

Acoustic echo cancellation& open duplex conversation All IP intercoms shall support support acoustic echo cancellation (AEC). The

AEC shall support open duplex call with sound pressure level upto 95 dB. Duplex conversation shall support HD Voice (G.722)

Acoustic echo suppression& switched duplex conversations All IP intercoms shall support acoustic echo suppression (AES). The AES shall

support switched duplex calls with sound pressure level upto 105 dB. Duplex conversation shall support HD Voice (G.722)

Audio messaging and music distribution All IP intercoms shall be able to distribute MP3 music.

Audio mixing All IP intercoms shall be able to mix upto 3 audio channels.

Active noise cancelling All IP intercoms shall support active noise cancelation. The active noise

cancellation shall be able to reduce background noise with upto 30 dB without reducing voice signal level.

Sound pressure level All IP intercoms shall be able to provide 105 dB sound pressure level at 1m. All IP intercoms shall have a 10W class D amplifier.

Audio clearity and intellibility All IP intercoms shall support STI (Speech Transmission Index) @ 90dB above

0.6

All IP intercoms shall provide a Percentage Articulation loss of Consonants (Alcons) - at 70 dB less than 5%*

All IP intercoms shall support total harmonic distortion + noise, without noise reduction (THD+N) - at 70 dB less than 2%*

Scream alarm All IP intercoms shall support scream alarm. Upon detection of a scream alarm,

the IP intercom shall be able to a) generate event to external alarm system, b) play audio message, and/or c) setup a call

Microphone technology All IP intercoms shall support automatic gain control to adjust autotically for

distance and volume from speaker All IP intercoms shall have a digital MEMS (micro-electro-mechanical-system)

microphone. Note! MEMS microphones provides superior performance compared to electret microphones with less sensitivity to vibration, temprature (-40°C to 80°C), EMC.

IP networking and security

Secure Web logon All IP intercoms shall support HTTPS for secure web sessions All IP intercoms shall have an authentication rutine for configuration logon. The

system shall have different user for read only users and read/write users.

IP security vulnarabilities All software shall be tested and scanned for IP security vulnerabilities

(http://www.nessus.org/products/nessus).

Network access control All IP intercoms shall support IEEE 802.1X Network Access Control and EAP

(Extensible Authentication Protocol) to protect against unwanted network access

.

IP and VoIP performance

IP priority The IP intercom system shall support QoS according to DiffServ and IP Type of

Service.

HD voice The IP intercoms shall support HD voice (wideband audio).

VoIP delay The IP intercoms shall use an adaptive jitter buffer that changes its size

dynamically in response to network conditions in order to optimize audio delay.

VoIP and SIP support

SIP supportThe following SIP (session initiation protocol) RFCs shall be supported:

RFC 3261 (SIP base standard) RFC 3215 (SIP REFER) RFC 2976 (SIP INFO)

Text messaging All IP stations shall be able to send customized text messaging using RFC 2976. Text messages shall be possible to send information to 3rd party SIP equipment

supporting RFC 2976

Everybody has today enjoyed the convenience by plug and play. This convenience of IP technology really makes it clear how important it is to secure networks from UNWANTED ACCESS as unwanted access both consumes network capacity, which disrupts the service quality, as well as that it introduces the risk of malicious intrusion and manipulation.

In particular wireless IP networks are prone to unwanted access as these networks lack any physical protection; the way these networks are managed and secured show that there are ways to overcome these problems.

A similar reduction in lack of physical protection becomes apparent in IP security devices which are deployed in public areas; in many cases it is possible for an intruder to get physical access to the network port used for the IP security device.

IEEE 802.1X is an IEEE Standard for port-based Network Access Control ("port" meaning a single point of attachment to the LAN infrastructure). It is part of the IEEE 802.1 group of networking protocols. It provides an authentication mechanism to devices wishing to attach to a LAN

Text messages shall be possible to customize and configure to send messages upon detection of input events e.g. “door open”, “door closed”, etc.

DTMF support All IP intercoms shall be able to send DTMF events using RFC 2833, and/or

RFC2976 It shall be possible to trigger customizeed actions upon reception of external

DTMF events such as relay ON/OFF, push to talk, etc.

Media transport All IP stations shall support RFC 3550 (RTP) for transmission of real time media.

Supported LAN and IP protocols

The following IP protocols should be supported: IPv4 (with DiffServ) (Internet Protocol) TCP (Transmission Control Protocol) UDP (User Datagram Protocol) SIP (Session Initiation Protocol) HTTPS (HyperText Transfer Protocol Secure) TFTP (Trivial File Transfer Protocol) RTP (Real Time Protocol) DHCP (Dynamic Host Configuration Protocol) SNMP (Simple Network Management Protocol) NTP (Network Time Protocol) STENTOFON CCoIP® (Critical Communication over IP)

The following LAN protocols shall be supported: Power over Ethernet (IEEE 802.3 a-f) VLAN(IEEE 802.1pq) Network Access Control (IEEE 802.1x) STP (IEEE 802.1d) RSTP (IEEE 802.1d-2004)

Environmental robustness

Mechanical construction All IP stations shall have a die cast metal frame with 3mm minimum thickness.

Noisy areas IP intercom stations shall support active noise cancelation. The active noise

cancellation shall be able to reduce background noise with upto 30 dB without reducing voice signal level.

IP intercom shall support output to external signal units IP intercom units shall support 105 dB sound pressure level at 1m The system shall support HD voice

Vibration The IP intercom units shall be tested for vibration according to IEC/EN60945 The IP intercom server shall be tested for vibration according to IEC/EN60945

Vandalism and mechanical impact grade IP intercom units that shall be placed in areas with high probability of vandalism

shall be tested according to IEC/EN62262 and have an impact grade of IK-10. All IP intercoms shall have a be tested according to IEC/EN62262 and have a

minimum impact grade of IK-08

Water and dust tight IP 66, tested according to IEC/EN 60529 • All IP intercoms shall be dirt, dust and water resistant. They must be tested

according to IEC/EN 60529with a minimum grade of IP 66

Corrosion resistance All IP intercom shall be resistant to corrosion and tested according to

IEC/EN60945 salt mist.

UV resistance All IP intercoms shall be resistant to UV radiation.

Remote control

All IP intercoms shall have minimum 6 general purpose digital inputs and outputs.When operated as digital output the gpio shall be able to drive a LED providing 12mA

All IP intercoms shall have minimum one change over relay (NO+NC+COM). The relay shall have a rating of minimum 250VAC/220VDC, 2A, 60W.

Installation, service and maintenance

Protection during installation All PCBs and electronic components shall be enclosed such that installers can not

touch any electronic components on the print card. The cover for electonics shall be made of transparent material in order for

installer to see LED indication on PCBs. The PCBs shall have LEDs to show power, ethernet and boot status.

PowerAll IP stations shall support power over ethernet (IEEE 802.3a-f and/or IEEE802.3a-t).

Supervision and monitoring

The IP intercoms shall support logging of critical events The IP intercoms shall support logging to network management systems using

Syslog and/or SNMP The IP intercoms shall support NTP (network time protocol) in order to ensure

syncronization of time and ensure that events are accurately timestamped. The IP intercom stations shall support tone test The IP intercom station shall be supervised. A network failure shall be detected

and reported within 10 seconds.

Software upgrade The IP intercoms shall support remote software upgrade. It shall be possible to

upgrade multiple IP intercom in parallell. The software upgrade file shall be watermarked in order to secure that the file is

not tampered with.

Security services

The IP intercom system shall support the following security services:

Group call& public address calls with priority levels Alarm broadcast (used for emergency broadcast) High priority (used for alarm tones) Normal (used for normal PA announcements) Low (used for entertainment & music distribution)

Two way calls including Push to talk priority Volume and handset override Priority call queuing Busy override Priority override Open duplex calls

Recording and audio surveillance It shall be possible to record audio from IP-intercom stations even when

they are not engaged in a conversation – IP-intercom stations shall be able to directly stream audio to the recorder – note that recording shall not commence until a specific command is given to the intercom station

The intercom system shall support audio analytics as an option and shall be able to detect aggression, glass break, car alarms and gun shots

Class of service and service profiles In order to ensure that user only get access to features he is authorized to

use. Security integration

The system shall have a SDK (software development kit) to integrate with 3rd party systems

The system shall have integrations with CCTV systems The system shall have integration to radio The system shallhave integration with alarm systems

References

1. IEC/EN60529 Ingress Protection Rating (IP code) 2. IEC/EN62262Degrees of protection provided by enclosures for electrical

equipment against external mechanical impacts (IK code)3. IEC/EN 50486 Equipment for use in audio video door-entry systems4. IEC/EN 50155 Railway Application 5. EN 60945 – “Maritime navigation and radio communication equipment and

systems - General requirements - Methods of testing and required test results”6. EN 50130-4 – “Alarm systems -- Part 4: Electromagnetic compatibility - Product

family standard: Immunity requirements for components of fire, intruder and social alarm systems”

7. EN 55103-1 – “Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use -- Part 1: Emission”

8. EN 55103-2 – “Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use -- Part 2: Immunity”

9. EN 61000-6-1 – “Electromagnetic compatibility (EMC) -- Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments”

10. EN 61000-6-2 – “Electromagnetic compatibility (EMC) -- Part 6-2: Generic standards - Immunity for industrial environments”

11. EN 61000-6-3 – “Electromagnetic compatibility (EMC) -- Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments”

12. EN 61000-6-4 – “Electromagnetic compatibility (EMC) -- Part 6-4: Generic standards - Emission standard for industrial environments”

13. EN 50121-1 – “Railway applications - Electromagnetic compatibility -- Part 1: General”

14. EN 50121-3-2 – “Railway applications - Electromagnetic compatibility -- Part 3-2: Rolling stock – Apparatus”

15. EN 50121-4 – “Railway applications - Electromagnetic compatibility -- Part 4: Emission and immunity of the signaling and telecommunications apparatus”

16. EN 60533 – “Electrical and electronic installations in ships - Electromagnetic compatibility”

17. FCC-47 Part 15B – Federal Communications Commission Title 47

Critical Communication over IP

Critical communicaton is about Critical Situations with-Life and property at stake-Human stress-Failing infrastructures-High noise-Fast actions

Critical communicaton shall-Work under any condition-Reduce stress-Easy to use-High audio quality-Fast communication with large groups of people-Integrated with other security systems

Voice over IP (VoIP) simply allows voice communications to be transmitted over a data network, and can deliver cost-savings by eliminating charges associated with long distance calls.

Critical Communication over IP employs VoIP, but goes an important step further by adding new IP services and applications integrating security, quality and reliability capabilities required in critical situations.