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Tema AD638 – SIP Network PA Wall Speaker, PoE, 40W


Innovative features

  • Launch of PA ads from any phone by calling the account of the IP SIP Speaker
  • 2nd SIP accounts night call repeater function, sounds files freely customizable
  • Output for 2nd passive speaker 20W 8 Ohm to extend the served area or to generate a 100V-20W audio line
  • Double internal audio amplifier 2x20W (maximum output power using external power supply)
  • PoE (Power over Ethernet) 802.af standard, Option to power via external power supply.
  • 2 internal relays for external devices drives via LAN
  • 16 Multicast channels for broadcasting background music, silenced by ads
  • Volume adjustable separately for all audio channels Multicast/Ads/Ringtone
  • Internal microphone for environment listening (Monitor) and normal bidirectional communication
  • 1 alarm trigger input for one of the alternate functions:
  • a) Generate a phone call and sends a message of alert (SIP SECURITY INFO CALL)
    b) Pre-recorded announcements launch from the speaker (Notice/Deterrence)
    c) “Push to Talk” feature for phone communication driven by local external button (not included)
  • 2 inputs for external call buttons to 2 programmable SIP numbers or IP addresses
  • LAN P2P (Peer to Peer) operation even without PBX
  • Remote programming via integrated LAN Web Server
  • Compatible with all SIP standard IP-PBXs on the market
  • Mobile Phone integration via app.
  • IP65 grade of protection



LAN, protocolTCP / IP Network 10 / 100BaseTx, SIP 2.0
Degree of protectionIP65
SupplyPoE, PoE injector or external power supply
PoEIEEE802.3af class 0
External power supply (Option)230Vac / 12-24Vdc-1-2a
Safetyaccess via password, activity log
Inputs from external alarm commands1
Inputs for VoIP call buttons1
Contact rating of the 2 internal relaysmax 30Vdc – 1,5A
TechnologyIMX25 400MHz processor
Memory256MB Ram, 2GB Micro-SD Flash
Container materialAbs
Operating temperaturefrom -20 ° to + 55 ° C
Storage temperaturefrom -20 ° to + 65 ° C
Humidityup to 100%
Installationwall,  including adjustment bracket Orizz./Vert.
dimensions190 x 195 x 290mm
Weight3,3Kg including bracket
Audio amplifier40W (Eastern Power) Class “D” (10W PoE)
Acoustic unit impedance8 Ohm
Bandwidth50 – 20.000Hz
Acoustic pressure (SPL)93 dB (1KHz at 1 meter)
Internal microphoneomnidirectional electret 30Hz-18KHz
Multicast audio streamingG711μ, G711a, G722, L16 from 8 to 44 kHz
Audio communicationUnidirectional and Bidirectional
Additional speakers1 passive speaker 8 Ohm 20W
Messages / Soundsn.6 pre-recorded in the internal SD memory
linkSIP Server (IPPBX) or P2P (Peer To Peer)
Smartphone APPiOS, Android
Acoustic signalscall tone, Ding-dong announcement
Visual signalsCall active LED
Programmingpractical web interface and password
Originentirely developed and built in Italy
warranty2 years, possibility of extension (Option)
CompatibilityCE, ROHS

Additional information

Weight2.5 kg


PoE switches & Injectors


Tema AD638 Wall Speaker Datasheet


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