VoIP Intercom Light. Brief Data Sheet

Transcription

1 VoIP Intercom Light Brief Data Sheet Version 1.3 December 4 th 2011 Oregano Systems Design & Consulting GesmbH Franzosengraben 8, A-1030 Vienna Tel: +43 (676) Fax: +43 (1) voip@oregano.at Web:

2 0.1 Legals Copyright Oregano Systems Design & Consulting GesmbH ALL RIGHTS RESERVED. Oregano Systems does not assume any liability arising out of the application or use of any product described or shown herein nor does it convey any license under its patents, copyrights, or any rights of others. Licenses or any other rights such as, but not limited to, patents, utility models, trademarks or tradenames, are neither granted nor conveyed by this document, nor does this document constitute any obligation of the disclosing party to grant or convey such rights to the receiving party. Oregano Systems reserves the right to make changes, at any time without notice, in order to improve reliability, function or design. Oregano Systems will not assume responsibility for the use of any circuitry described herein. All trademarks used in this document are the property of their respective owners. page 2

3 0.2 Contents VoIP Intercom Light... 1 Brief Data Sheet Legals Contents List of Figures List of Tables Introduction System Features VoIP Intercom Light Features Interfaces External Power Supply Ethernet Microphone Speaker Button Opto-Coupled Output ESD Temperature Range Mechanical Dimensions List of Figures Figure 1. VoIP Intercom Light... 5 Figure 2. Opto-coupled outputs: circuit diagram... 8 Figure 3. VoIP Intercom Light mechanical dimensions List of Tables Table 1 Power supply DC characteristics... 7 Table 2 Specification of the microphone interface... 7 Table 3 Specification of the speaker interface... 8 Table 4 Specification of the opto-coupled output interface... 8 page 3

4 1. Introduction Oregano Systems VoIP Intercom Light enables low-cost voice communication in an industrial environment using an Ethernet network via standard IP protocols. It offers a simple master-slave voice communication between several distributed remote sites and a single central office. The VoIP Intercom Light is a cost optimized version of the well-established VoIP Intercom II PoE Board. In contrast to a conventional IP telephone the VoIP Intercom Light offers a rugged, easy-to-use user interface. The system also enables field maintenance and field upgrade capabilities. 2. System Features Oregano Systems VoIP Intercom Light is intended for OEM manufacturers. It does not include any housing, power supply or mic/speaker. The VoIP Intercom Light offers the following features: IP based voice communication SIP protocol Voice communication from board to any other SIP software (as simple as Microsoft s NetMeeting) or any standard IP phone Board to board voice communication Standard 4 khz voice bandwidth Easy-to-use interface: button-speaker-microphone Call is established by pressing the call button Static pre-programmed IP configuration or BOOTP/DHCP based auto configuration High performance 4W power amplifier for the loudspeaker enables communication under noisy conditions Opto-coupled Output page 4

5 2.1 VoIP Intercom Light The VoIP Intercom Light serves as the user interface in a VoIP system. Figure 1. VoIP Intercom Light The VoIP Intercom Light will act as a standard internet device having a unique MAC-address and the capability to communicate with a DHCP server to obtain an Internet address within the target system. The VoIP Intercom Light runs a firmware based on the Linux operating system. page 5

6 2.2 Features Request and receive VoIP calls using SIP protocol Supported audio codec: G.711 A-law or u-law Call request issued by pressing a single button to a fixed programmable address Incoming calls are answered automatically (unless there is a call active at that time) A single pre-programmable call button is available Optional support for one SIP proxy Static IP configuration or dynamic configuration using DHCP External user interface enables simple customization (CI design) microphone and speaker for hands-free operation 4 W on-board audio amplifier 1 Opto-coupled Output Single unregulated DC supply (12 V DC) page 6

7 2.3 Interfaces External Power Supply The VoIP Intercom Light is operated with an unregulated DC power supply. DC Characteristics Minimum DC input voltage Maximum DC input voltage Maximum DC supply 12 V Maximum DC supply 12 V with audio amplifier 10 8 Ohm 8 V 15 V 0,5 A 1,5 A Table 1 Power supply DC characteristics Connector: Weidmüller, SLA Ethernet 1 There is one 10/100 Mbit/s Ethernet interface available on the VoIP Intercom Light. The Ethernet interface 1 (X5) is used for connecting the VoIP Intercom Light Board to the network Microphone A standard Electret microphone suited for a operating voltage of 1.5V is connected to the VoIP Intercom Light via this interface. The microphone input is specified as follows. Parameter Conditions Value Input Impedance with AC-coupled 40 mvp-p 12 k Ω 20 k Ω Input Voltage Swing 36dB, V DD = 3.3V 19 mvp Input Voltage Swing differential 0dB 1,2 Vp Table 2 Specification of the microphone interface Connector: Phoenix Contact PTSA 0,5/10-2,5-F (X8) page 7

8 2.3.4 Speaker The VoIP Intercom Light offers speaker interface for standard 4-8 Ohm speakers. Parameter Speaker Output Power Device Impedance 4 Ω 4 12 V Device Impedance 8 Ω 4 12 V Table 3 Specification of the speaker interface Connector Phoenix Contact PTSA 0,5/10-2,5-F (X8) Button The button interface is made up of a standard two pin header allowing a single call button Opto-Coupled Output There is one opto-coupled output available. The opto-coupled output is a two row 1-pin header. It enables switching of a maximum of 40 ma with a maximum voltage of 40 V. Parameter Conditions Value Maximum output voltage Maximum output current 40 V 40 ma Table 4 Specification of the opto-coupled output interface Figure 2. Opto-coupled outputs: circuit diagram page 8

9 2.4 ESD The VoIP Intercom Light is protected against ESD damage following IEC kv air 8 kv contact. 2.5 Temperature Range The operating temperature range is 0 to +60 degree Celsius. We test the VoIP Intercom Light board successfully in the range of -20 to +60 degree Celsius (non-condensing). 2.6 Mechanical Dimensions all dimensions in mm Figure 3. VoIP Intercom Light mechanical dimensions page 9