Web & Voice Dial-up Remote Control

Posted on 05 June 2024

The WVRC-4 Plus is a cost-effective web-enabled remote control featuring a desktop/mobile browser compatible web interface (HTML5) and a dial-up telephone voice interface in a ½ rack-unit form factor. It features 4 raise relays, 4 lower relays, 4 status inputs, 4 metering inputs, a temperature probe input, a silence sense input, and a power fail input.

The WVRC-4 Plus is designed from a user’s point of view, so all of the basic functionality you need is included to control and monitor your site equipment while including the accessories other manufacturers consider optional. Support for email (basic SMTP authentication) as well as SNMP is built-in. The WVRC-4 Plus is supplied with spoken words and phrases in English, but the user is free to record words and phrases in their language. Each analog, status, silence sensor, temperature sensor and power failure input can be configured to dial-out and/or email up to eight individual phone numbers/email addresses, allowing different input alarms to be routed to different call-out numbers and/or email recipients. Event-driven and time-based automatic command capabilities, allows 50 user-defined macros to enable the WVRC-4 Plus to make corrective actions; 100-event program scheduler for relay control, DST correction, macro actions and alarm muting.

Already own a WVRC-4?
You can upgrade your existing unit to the WVRC-4 Plus firmware with our Do-It-Yourself upgrade kit. If you’d rather not do it yourself then you can send your WVRC-4 in to be upgraded at the factory. For more information including pricing and ordering instructions email or call us

Voice Dial-up Remote Control


• NTP time base and/or battery-backed real-time clock/calendar with accuracy better than ±2.0 minutes per year.*
• Four “Virtual” metering channels.*
• Single 1/8” T/R/S temperature probe port allowing Fahrenheit or Celsius temperature monitoring within the range of -67°F to +257°F (-55°C TO +125°C).*
• Internal temperature monitor.*
• Jack for external power failure power supply.*
• Silence Sensor function with remote telco audio monitoring.*
• Internet Down alarm feature which will allow voice alarms when internet connection or DNS is lost.
• Event-driven and time-based automatic command capabilities. This allows user-defined macros to enable the WVRC-4 Plus to make corrective actions.
• 100-event program scheduler for relay control and alarm muting.
• Logging of all user-selected input status with site ID information which may be emailed from once an hour to once a day, along with hourly snap-shot functionality.
• Front panel I/O activity LED indicators.
• Front panel local/operate switch with LED indicator.
• Front panel RJ-11 telephone jack used for user voice response recording
• Plug-in euro-block screw terminals for metering, status, relays, and stereo silence sensor.
• Rear panel RJ-45, 10/100base-T LAN/Ethernet interface.
• Rear panel RJ-11 telco POTS line jack.
• Fused and surge-protected universal power supply included.
• Fully RFI proofed.
• Up to two units may be mounted on the optional RA-1 rack shelf. Desktop and wall mounting is also possible.
* Denotes independent of the metering (analogue) and/or status/logic channels.



Australia: sales@avw.com.au
Syd: 02 8213 0200  Mel: 03 8691 5210 
Qld: 07 3607 3785 WA/SA/NT: 08 8120 3203

New Zealand: sales@avw.co.nz
Akl: 09 271 4000 Wel:  04 499 3888

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