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Digital Acoustics IP7-SS20 Reference Manual

Ip paging amplifier
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IP7
-SS20
™
IP Paging Amplifier
Reference Manual

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Summary of Contents for Digital Acoustics IP7-SS20

  • Page 1 -SS20 ™ IP Paging Amplifier Reference Manual...
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  • Page 3: Table Of Contents

    Table of Contents Overview ..................1 Specifications .................2 IP7-SS20 Layout ................3 LED Indicators ................6 LEDs ....................6 LED Status Table ................6 LAN Connector LEDs................. 6 Connecting Power................7 External Power ................7 USB Power..................7 Connecting a Speaker / Transformer ..........7 SPKR 8Ω+ and SPKR 8Ω- ..............

  • Page 4: Overview

    Overview The Digital Acoustics IP7-SS20 is an IP (Internet Protocol) amplifier that provide up to 20 watts of audio output. The SS20 is capable of driving one or more speakers attached to a 25/70V audio distribution line or an 8 ohm speaker.

  • Page 5: Specifications

    Specifications Items Specification Hardware Protocols TCP, UDP, RTP, ARP, ICMP, IGMP Multicast Network Interface 10/100 Ethernet (Auto detection, Auto MDIX) Command protocols Proprietary Audio Rate 64kbs Audio Resolution G.711 (8-bit PCM and 16-bit uLaw) Audio Sample Rate 8 kHz (Voice band) Audio Frequency 4000 Hz Internal Amplifier...

  • Page 6: Ip7-Ss20 Layout

    IP7-SS20 Layout...

  • Page 7: Connections And Controls

    Will also power the unit for diagnostic purposes. Ext I/O I2C expansion bus interface that can be used for custom applications. Requires custom firmware from Digital Acoustics Ethernet 10/100 10/100 Ethernet network interface. Supports auto negotiation and auto-MDIX Aux Power 2.1mm power connector with center tip...
  • Page 8 There are two sets of pluggable DIN connectors (3.81mm centers) on the SS20: SS20 J1 Connector Connector Signal Notes 24 -32 VAC/VDC. J1-1 Power + Warning: Connecting power to both the 2.1mm power jack and the J1-1 and J1-2 power connectors at the same time will damage the unit J1-2 Power -...

  • Page 9: Led Indicators

    LED Indicators LEDs There are four LEDs present on the curved bezel on the front of the product.  The blue LED indicates that the IP7-SS20 has powered up.  The three red LEDs indicate status of the unit. Description Ready...

  • Page 10: Connecting Power

    The IP7-SS20 is designed to drive speakers attached to a 25/70V distribution line (requires optional 25/70V Transformer) or an 8 Ohm. One or more speakers can be driven by a single IP7-SS20. If more that one speaker is connected to an IP7-SS20, all speakers will sound when audio is sent to that SS20.
  • Page 11 Please note the following guidelines:  Each speaker must have its own 25/70V transformer  Do not mix Speakers tapped for 25V with a 70V distribution line or speakers tapped for 70V with a 25V distribution line  All speakers must be wired in parallel. ...

  • Page 12: Ohm Speaker(S)

    8 Ohm Speaker(s) The following configurations are supported for driving 8 Ohm speakers. If you plan on driving more than one speaker, consider using 25/70V Speaker(s) with optional 25/70V transformer as described in the previous section.  A single 8 Ohm speaker ...

  • Page 13: Connecting Line Out

     Cut a piece of 35mm DIN rail (not supplied) to the desired length and secure it to the wall  Place the IP7-SS20 onto the DIN rail by tilting the top of the unit (J1, J2, J3 connectors facing up with Volume buttons and USB-B...

  • Page 14: Setting Volume Levels

     Attach one (1) #8 screw to the remaining hole at the bottom of the mounting plate Setting Volume Levels The IP7-SS20 supports seven volume levels for an attached speaker.  Press the “+” or “-“ Button one time to increase or decrease the speaker volume ...

  • Page 15: Environmental

    Physical Dimensions The IP7-SS20 dimensions are as follows: Environmental The IP7-SS20 is designed to operate indoors or in a weather proof box that has a NEMA4 or IP66 rating.

  • Page 16: Troubleshooting

     Attached J3-7 to an earth ground Viewing tech support info via the USB port If requested by Digital Acoustics Support, a USB cable can be attached to the IP7-SS20 to capture additional information.  Attach a USB cable to the USB-B connector on the unit.

  • Page 17: Low Level Flashing Utility

    Serial port with settings of 115kbs, 8,N,1, no flow control and ANSI Terminal  Press the Enter key  Provide the requested info to Digital Acoustics Tech support Low Level Flashing Utility If a power is removed from the unit while the firmware is being updated from the network, the unit may require a low level flash.

  • Page 18: Regulatory Notices

    Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada. NOTE: Industry Canada regulations provide that changes or modifications not expressly approved by Digital Acoustics, LLC could void your authority to operate this equipment CE Notice...

  • Page 19: Index

    Index - Button......4, 11 Line Out connector ..... 10 + Button......4, 11 Options ......11 Aux Power ......4 Power ........5 DIN rail mount.....10 Power - ........ 5 DIN Rail Mounting Clip ... 4 SPKR 8Ω- ......5 Ethernet 10/100 ....
  • Page 20 Design and specification are subject to change without notice. Digital Acoustics®, IP7™, ii3™ and TalkMaster™ are trademarks of Digital Acoustics, LLC. I2C is a registered trademark of NXP Semiconductors, Inc. All other marks used are properties of their respective owners.

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