Intercom Systems > Aiphone Intercom Systems > IP-EWST: IP Addressable Intercom Adaptor
IP-EWST: IP Addressable Intercom Adaptor

IP-EWST: IP Addressable Intercom Adaptor

The IP-EWST offers voice-quality Intercom function over TCP/IP based networks. Designed specifically to integrate seamlessly into a new or existing LAN / WAN infrastructure, the IP-EWST is capable of hundreds of stations, fulfilling a large variety of applications including commercial, industrial, and residential access control; general security, office, and institutional intercom / paging, and many more. Power over Ethernet (PoE) capability is also supported (IP-EWST-POE only), allowing greater installation flexibility for both new and retrofit applications.


Hardware Features:

  • Cost effective PC based communication
  • One adaptor per station
  • Unlimited system size
  • Compatible with all Aiphone LEF and IE series door stations.
  • Compatible with Aiphone AH-108 or any 8 ohm speaker
  • Works with standard wired and wireless networks (LAN/WAN)
  • Digital audio recording and playback capability
  • Field Upgrade OS using internal Flash Memory
  • Relay output for remote release (N/O and N/C) with programmable timer
  • Hands-free listen at sub end
  • Duplex or push-to-talk operation to door/sub station
  • Keyboard or mouse control
  • Call forwarding to additional PC’S
  • Call queuing
  • Group or all page capability
  • Audio and visual call notification
  • Transfer to back-up PC
  • Customizable audio notification (using WAV file)


Software Features:

  • Duplex or Push-To-Talk operation to door/sub station
  • Keyboard or mouse control
  • Fail forward calling to additional PC'S
  • Call Queuing
  • Group or all page capability
  • Audio and visual call notification
  • Transfer to back-up PC
  • Customizable audio notification (Using WAV file)


Hardware Specifications

  • Input Voltage: IP-EWST – 7.5-9VDC, 300mA, use included power supply
    IP-EWST-POE – IEEE 802.3af compliant
  • Network Interface: 10/100 Base-T Ethernet (Auto detection) RJ-45
  • IP Assignment: Static or Dynamic via DHCP
  • Hardware Protocols: TCP, UDP, IP, ARP, ICMP, Ethernet MAC
  • Transport Bandwidth: ≈80kbps per TCP/IP session
  • LED Indicators: Active, Link, Talk, Reserved / Programmable
  • Audio Resolution: WAV, PCM-8 and uLAW-16 bit
  • Audio Sample Rate: 8kHz
  • Audio Buffers: 4kb transmit and receive
  • Audio Latency: Target delay < .5 sec. Typical delay ≈ .3 sec.
  • Output Amplification: Maximum 2W @ 4Ω. Actual determined by sub
  • Operating temperature: 32°F to 158°F (0°C to 70°C)
  • Dimensions: 6-3/4″H x 4-1/8″W x 1-3/4″D

Software System Requirements

For optimum performance, TalkMaster™ requires a minimum of the following:

  • Operating System: Microsoft Windows® 98SE, Windows ME, Windows NT® (SP6), Windows 2000, or Windows XP
  • Processor: 750MHz or faster
  • Memory: 128MB of RAM (256MB recommended)
  • Sound Card: Windows supported sound card (with speaker and microphone)


Three sets available. Each set features a different quantity of door stations and adaptors. All sets include the appropriate software and power supplies for system functionality:

IP-EWST-1 IP-EWST-4 IP-EWST-8
Model Qty Model Qty Model Qty
LE-D 1 LE-D 4 LE-D 8
IP-EWST 1 IP-EWST 4 IP-EWST 8


Adaptors & Kits
IP-EWST IP Addressable Intercom Adaptor

IP-EWST IP Addressable Intercom Adaptor

Aiphone IP-EWST IP Addressable Intercom Adaptor




IP-EWST IP-1 Addressable Intercom Kit

IP-EWST IP-1 Addressable Intercom Kit

Aiphone IP-EWST IP Addressable Intercom Adaptor

  • (1) IP-EWST Adaptor
  • (1) LE-D Intercom Station



IP-EWST IP-4 Addressable Intercom Kit

IP-EWST IP-4 Addressable Intercom Kit

Aiphone IP-EWST IP Addressable Intercom Adaptor

  • (4) IP-EWST Adaptor
  • (4) LE-D Intercom Station



IP-EWST IP-8 Addressable Intercom Kit

IP-EWST IP-8 Addressable Intercom Kit

Aiphone IP-EWST IP Addressable Intercom Adaptor

  • (8) IP-EWST Adaptor
  • (8) LE-D Intercom Station





Intercom Stations & Accessories
AH-108 10W Horn Speaker, 8 Ohm

AH-108 10W Horn Speaker, 8 Ohm

  • 8W, 10W horn with built-in non-polarized capacitor
  • All metal weather proof construction for indoor or outdoor use
  • Universal swivel mount base
  • Beige baked enamel finish
  • Use with Mid-power (MP-S) system for two-way communication. Can also be used with LEF and NEM systems.



LE-A Surface Mount Sub Station

LE-A Surface Mount Sub Station

Aiphone LE-A Surface Mount Sub Station

Surface Mount Sub Station.




LE-A3 3-Call Sub Station, Surface Mount

3-Call Sub Station, Surface Mount



LE-AN Surface Mount Sub With Privacy

Surface Mount Sub With Privacy



LE-B Semi-Flush Mount Sub Station

Semi-Flush Mount Sub Station



LE-BN Semi-Flush Mount Sub With Privacy

Semi-Flush Mount Sub With Privacy



LE-C Semi-Flush Sub With Music Volume Control.

Semi-Flush Sub With Music Volume Control.



LE-CN Semi-Flush Sub With Privacy, Music Volume Control

Semi-Flush Sub With Privacy, Music Volume Control



LE-D Surface Mount Door Station

Surface Mount Door Station



LE-DA Flush Mount Door Station, Stainless Steel

Flush Mount Door Station, Stainless Steel



LE-SS Flush Mount 2-Gang Stainless Steel Sub Station

Flush Mount 2-Gang Stainless Steel Sub Station



LE-SSR Flush Mount 2-Gang Stainless Steel Sub Station with Red Mushroom Button

Flush Mount 2-Gang Stainless Steel Sub Station with Red Mushroom Button



LS-NVP/B Vandal Proof Sub / LEF

Vandal Proof Sub / LEF