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8138 IP Color Visual Alerter

8138 IP Color Visual Alerter

IP Color Visual Alerter for Telephone, Safety, Security & Emergency Alerting – PoE

The PoE 8138 IP Color Visual Alerter is a four color LED visual alerting IP endpoint in amber, blue, green and red. This PoE IP strobe light is designed for telephone ringing where noise, noise sensitivity or hearing impairment are at issue. Together with Algo IP speakers, the 8138 is also commonly deployed as part of public address (PA) and mass notification systems to visually alert for safety, security and emergency events.

The 8138 alerter is a fully compliant 3rd party SIP endpoint. As a result, this IP strobe light is compatible with most hosted / cloud and premise-based VoIP telephone systems.

The 8138 IP Color Visual Alerter is UL/CSA, FCC and CE certified.

SKU: 8138 Category:


  • Multi-color IP alerter for public address (PA) and alert notification.
  • Secure SIP using TLS and SRTP.
  • Multicast to scale from one to many synchronized strobes.
  • Long-life LEDs providing 360 x 180 degree visibility from a wall or ceiling mount location.
  • 180 combinations of flash patterns, intensity and color incuding steady-state on.
  • Amber, blue, green and red LED color options to distinguish unique events and enhance situational awareness. (Use Algo 8128 for white).
  • Configuration via user friendly web interface or auto-provisioning.
  • PoE (IEEE 802.3af).
  • Ideal for noisy workplace environments or where hearing protect is worn (e.g., manufacturing plant / factory, utility, warehouse, machine shop, garage, restaurant), noise sensitive areas (e.g., hospital maternity ward, court room, studio, library) and expansive facilities such as a school / college / university campus, transportation terminal (i.e., airport, bus / rail station), hospital, government office, enterprise campus, etc.


IP Visual Alerting for Enhanced Situational Awareness

The 8138 IP Visual Alerters is a four color LED including amber, blue, green and red. The alerter’s color options are designed to enhance notification and alerting of telephone, safety, security and emergency events. Typically the 8138 is deployed with Algo IP speakers using multicast, to design a notification system that aligns a visual alert color with the speaker’s broadcast for an alert tone / announcement. For example, Amber – Shelter, Blue – Medical, Green – All Clear, Red – Lockdown.


The 8138 Alerter may be actived using its API interface for additional applications where the color capabilities are advantageous.

Such as visual indication ie GO, STOP, WARNING, DANGER, CLEAR etc.

Multi-Application SIP Extensions

Multiple SIP registrations are available in this IP alerter, including Page (50), Emergency Alert (10) and Ring (10) extensions. On Page, the alerter will auto-answer and flash until the call is ended by the caller (this allows long duration events). For Ring, the alerter will not answer but flash for the duration of ring.  Emergency Alert extensions activate the strobe to flash until the event is cancelled by calling a separate extension.

Scale Algo IP Visual Alerters Over Any Size Building or Campus

The 8138 IP Color Alerter Color supports multicast send or receive. As a result, many Algo alerters can be deployed to cover any size building, campus or enterprise.  There is no limit to the number of devices receiving a multicast, and a minimum of network traffic activity is utilized. Multiple alerters activated by multicast will flash in a synchronized pattern.

A single registered 8138 can be configured to multicast to any number and mix of Algo IP speakers, paging adapters, strobe lights and multicast supported IP telephones.

Multicast provides cost effective scalability using a minimum of SIP registered endpoints, as only the endpoint designated to send the multicast needs to be registered. Devices configured to receive the multicast do not need registration.

Support is available for RTP multicast, in addition to Polycom Group Page, Singlewire InformaCast (part no. 8138-IC). Revolution support will be available in Q3 2020.

Zone Paging

Multicast zone paging for up to 50 zones can be configured from a single 8138 strobe light. Zones can be selected one of two ways. One option is to map multicast page zones to individual SIP extensions on the endpoint. Fifty (50) page extensions are available for this purpose. Alternatively, in order to minimize SIP registrations, multicast page zones can be configured in the SIP strobe light as a DTMF key press selection using the dial pad of telephone making the page call.

Alert Notification in Transportation, Education, Manufacturing & Other PA Applications

Together with the Algo 8301 SIP Paging Adapter & Scheduler, a PA system requiring multiple zones with scheduled bells / announcements can be easily configured and synchronized with IP clocks using the 8138 and other Algo IP speakers.

If desired, the 8301 IP paging adapter can also provide audio to a legacy analog paging system via its line-level output, and simultaneously multicast this audio to additional Algo IP endpoints.

IP Visual Ring Alerting

The Ring extension on the 8138 is used for telephone visual ringing / ring alerting. The 8138 will flash when this extension is called. Typically the strobe light will be configured in a ring group to include a telephone(s). The strobe light will flash for the duration of the ring event until the call is answered. Fifteen(15) flash patterns, each with three intensity levels, are available to choose from.

Up to 10 Ring extensions are available to register on a single strobe light, thereby allowing one device to act as a visual alerter for several telephones by configuring different ring groups for each registered Ring extension. Each registered extension can of course be configured to flash a specific color, flash pattern and intensity to effectively distinguish each telephone ring event.

Where audible and visual telephone ring alerting is required, the 8138 can be combined with an Algo strobe light using multicast or a relay.

Emergency Notification Alerting

For notification alerting of safety, security and emergency events there are two activation options available: Dial an Emergency Alert extension or connect a button to the strobe’s relay input.

Up to 10 Emergency Alert extensions are available to register on the alerter, allowing for different types of alerts to be activated when the extension is called (e.g., lockdown, evacuation, shelter, all clear, etc.). The multi-color configuration options of the 8138, in addition to multiple flash patterns and intensities, allow this IP alerter to align with specific alerting events. This capability improves situational awareness and response time.

An Emergency Alert can be configured to activate the alerter for a timed duration. Alternatively, the alert be activated until cancelled. This feature uses a Call To Cancel extension to stop activating the strobe light when desired.

Upon calling an Emergency Alert extension the user does not have to remain on the phone. As soon as the call is made the 8138 alerter will flash as configured. This ensures emergency alerting is simple and efficient from any telephone or device in the UC environment. If the Call to Cancel extension is configured, the same cancelling extension will apply to any of the Emergency Alert extensions registered.

As an alternative option for emergency alerting, any button providing a contact closure, including the Algo 1202 and 1203 buttons, can be wired to the 8138 relay input using a 24 gauge single twisted pair. Two configuration options are available via strobe’s relay input upon button activation:

  • Flash and/or multicast an alert.
  • Call a target extension and play a tone / announcement.

Power for the Algo 1202 and 1203 buttons is provided by the available PoE from the 8138 IP Coilor Visual Alerter.

Any combination and number of Algo IP endpoints can be configured as a multicast for emergency alerting to cover any size room, building, campus or enterprise.

Long-Life LEDs & Customizable Flash Patterns

The high intensity LEDs of the 8138 SIP Strobe Light provide extended life in comparison to Xenon type strobes, with more luminescence and less energy.

The IP alerter offers 360 x 180 degree visibility when mounted to a wall or ceiling. Fifteen(15) flash pattern options (each with three intensity levels and four color options) are available to suit any application environment.

To sum up, the 8138 IP alerter is powered via PoE (IEEE 802.3af). A wall mount plate is included for easy installation. The product is CSA/UL, FCC and CE certified.

Benefits of the PoE Algo IP Color Visual Alerter

  • Network managed and supervised SIP and multicast endpoint.
  • Visibility from any angle whether mounted vertically or horizontally.
  • Fully zone configurable via a web interface. Multicast zones are not dependent on wiring to the strobe light.
  • Multi-color LED visual alert to meet enhanced emergency notification requirements.
  • Match aggressiveness of the flash pattern (15), intensity (3) and colors (4)  to the nature of the alert. For example, low, medium and high brightness options with amber, blue, green and red LED color choices.
  • Multicast to scale from one to many synchronized alerters.
  • Notification without audible noise for noise-sensitive, high noise environments or for hearing impaired users.
  • PoE (IEEE 802.3af) eliminates need for local power supply, and simplifies wiring infrastructure and management.
  • Compatible with all varieties of Algo IP speakers, paging adapters and strobe lights for more comprehensive alerting solution requirements.


Singlewire Informacast

InformaCast Compliant IP Strobe Light

Algo InformaCast IP endpoints are fully compliant to register seamlessly with Singlewire InformaCast for emergency notification and public address.

The Algo 8138 SIP Color Visual Alerter is also sold as the Algo 8138-IC InformaCast SIP Color Visual Alerter, a fully InformaCast Compliant endpoint for telephone, safety, security & emergency Alerting. The strobe is also a fully compliant 3rd party SIP endpoint. As a result, the 8138-IC InformaCast SIP Color Visual Alerter is compatible with most hosted / cloud and premise-based VoIP telephone systems.

The 8138-IC together with other InformaCast endpoints are scalable to meet the needs of any size project. Algo IP InformaCast compliant endpoints support multicast send or receive. As a result, many Algo IP endpoint can be deployed to cover any size building, campus, or enterprise.  There is no limit to the number of devices part of a multicast, and a minimum of network traffic activity is utilized.

All features and specifications of the Algo 8138 SIP Color Visual Alerter remain in the 8138-IC InformaCast SIP Color Visual Alerter.


Power InputPoE (IEEE 802.3af Class 0) 48V, 12.95W
Max Power12.95W
Idle PowerNominal 2.5W
SIP Extensions50 Auto-Answer (Activate until call ended – time out optional)
10 Emergency Alert (Active until cancelled)
10 Ring (Active while ringing – UC platform may limit duration)
SIP Signalling/Transport ProtocolsUDP, TCP, TLS, RTP, SRTP
API Control of alerter to activate or stop alerting even with choice of flash pattern, intensity and color.
Multicast & Third-Party Compatibility
RTP Multicast (Send and Receive 50 Zones)
Receive only* Polycom Group Page (The strobe cannot generate audio – provides visual alert during page)
Singlewire InformaCast (additional license required)
Configuration & Provisioning
ConfigurationWeb interface or provisioning server
Web InterfaceHTTP, HTTPS
ProvisioningTFTP, FTP, HTTP, HTTPS
DHCP Options 66, 150, 160
Reboot via SIP ‘check-sync’
SupervisionCompatible with any third party SNMP monitoring software or the Algo 8300 Controller.
NetworkingIPv4, IPv6, DHCP, VLAN
Link LayerLLDP, CDP
NATSTUN, TURN, CRLF Keep Alive, SIP Outbound
Address ResolutionDNS, SRV Record
RedundancySecondary and tertiary SIP server
TimeNTP Server (up to four)
No audio capability is provided however activation is possible from a multicast audio stream.
16 LEDs * 4 Colours (Red, Blue, Green, Amber) (64 total)
180 Combinations of flash pattern, intensity and color
Relay InputNormally open or normally closed dry contact supervision using Algo 1202 Call Button, 1203 Call Switch or EOL resistor termination
Relay OutputMax 30 V 50 mA (normally open)
Relay Input Current Draw Detection ThresholdsActiveIdleTamper
Normally Open>4mA<4mAN/A
Normally Open with Supervision>20mA4-20mA<4mA
Normally Closed<4mA>4mAN/A
Normally Closed with Supervision4-20mA>20mA<4mA
Nominal 12V source, current limited to 40mA
Typical supervision resistor value = 1k ohm
Environmental & Mechanical
Environmental -40° to +123° F (-40° to +50° C). Outdoor/wet environments require installation using supplied gaskets on smooth surfaces or electrical box. IP66 rated if properly installed.
Dimensions4.8″ x 4.8″ x 3″ (12.2cm x 12.2cm x 7.6cm)
Weight (Product)1.0 lbs (0.5 kg)
Weight (Shipping)1.4 lbs (0.6 kg)
RoHS, CE, FCC Class A, CISPR 32 Class A, CISPR 24, CSA/UL (USA & Canada), EN62368-1


  • Emergency mass notification for expansive enterprise or campus environments including lockdown or evacuation events, workplace safety, security or weather warning events (e.g., school / college / university, manufacturing plant, airport / bus / rail station terminals, hospital, government facility, distribution warehouse, etc.).
  • Noisy environments requiring visual ring alerting to avoid missed calls. Similarly, where employees are wearing hearing protection. For example, factory, utility, machine shop, garage, restaurant, kitchen, call center, etc.
  • Telephone ring alerting in noise sensitive environments such as a maternity ward in a hospital, court room, studio, library, etc.
  • ADA or similar workplace compliance for the hearing impaired as a telephone ring alert.
  • Call center ACD queue threshold alert (by ringing a telephone).
  • Door open / access control or security surveillance visual alarm.
  • Workplace safety regulations such as OSHA compliance.
  • Process control alert (e.g. machinery fault, temperature sensor, etc.).

Ordering Guide

ItemProduct Code
IP/SIP Color Visual Alerter8138
IP/SIP Color Visual Alerter for InformaCast8138-IC
2507 Ring Detector2507





Please follow the appropriate link below to obtain the firmware download for your device.