Blue Strobe Light kit for ring/in use detection on analog lines and 2-button phones, comes with EWP

Blue Strobe Light kit for ring/in use detection on analog lines and 2-button phones, comes with EWP

Item# viking-blk-3-ewp
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Provide Strobe Light Indication of Line Status

product# BLK-3-EWP

The BLK-3-EWP provides high visibility indication of analog line status through a high powered one million candle power strobe light. The BLK-3-EWP is the ideal solution for the hearing impaired and can be used equally well in loud warehouses or factories, where ringing phones can not be heard. Alternatively, the BLK-3- EWP can be used to add emergency notification to pre-existing emergency phones by turning on the strobe light when the emergency phone is in use.

The included LDB-3 control module has a disable input which is ideal for two-button emergency phones, such as Viking’s E-1600-20A, allowing “Info” button calls to be placed without activating the relay (turning on the emergency strobe light, camera, etc.) Three DIP switches are provided for turning ring detection on or off, off-hook/loop detection on or off and for selecting a ring cadence mode which allows the relay to follow ringing or to remain activated during the off time of standard ring cadence.

The control module can be installed on any standard telephone line or analog PABX/KSU station. The 1 million candle power strobe can be interfaced to flash on ringing, off-hook or a combination of ringing and off-hook (line in-use). The LDB-3 ring/loop detect control module is also available separately, see DOD# 409 for more information.

The BLK-3-EWP is equipped with Enhanced Weather Protection (EWP) for outdoor installations where the unit is exposed to precipitation or condensation. EWP products feature foam rubber gaskets and boots, sealed connections, gel-filled butt connectors, as well as urethane or thermal plastic potted circuit boards with internally sealed, field-adjustable trim pots and DIP switches for easy on-site programming. For more information, see DOD# 859.

The kit includes: (1) LDB-3 control module, (1) blue strobe light, (1) 12V DC power adapter, (13) gel-filled butt connectors and (1) single gang weatherproof mounting box with gaskets and hardware.


Ringing Phone or TTY indication for the hearing impaired

Ringing phone indication in loud warehouses and factories

Emergency illumination for emergency phones in elevators, campuses, hallways, parking ramps, etc.

Alarm indication for security systems or alarm panels with phone dialers


LDB-3 control module comes with Enhanced Weather

Protection (EWP), EWP products are designed to meet IP66

Ingress Protection Rating, see DOD# 859

Durable polycarbonate lens

Long life 1 million candle power blue strobe light

Flush mount or surface mount with weatherproof single gang box (included)

3/4” knockouts for connecting conduit, etc.

Strobe and control module may be installed separately

Can be configured to signal: ringing, off-hook, or a combination of both ringing and off-hook (line in-use)

One set of (NO) normally open and (NC) normally closed relay contacts provided

Selectable ring cadence mode (strobe light will remain flashing between rings)

Switched 12V DC output (follows relay activation for powering strobe lights, cameras, etc.)

On/off switches for ring detection and off-hook/loop detection

Disable input, ideal for use with two-button emergency phones like Viking’s E-1600-20A (DOD# 215), will not activate strobe light on “Info” calls


Power: 120V AC to 12V DC adapter provided

Strobe Dimensions: 111mm diameter x 69mm (4.38" x 2.75")

Control Module Dimensions: 74mm x 53mm x 25mm (2.9" x 2.1" x 1.0")

Shipping Weight: 1.5 kg (3.3 lbs)

Operating Temperature: -26° to 54°C (-15° to 130° F)

Relay Contact Rating: .5A @ 125V AC/1A @ 30V DC

Minimum Loop Current: 15 mA

Minimum Ring Voltage: 25V RMS

Strobe Output: 1 million candle power @ 1 second flash rate

Ringer Equivalence: 0.5 A REN

Disable/Info Switch Input: 50mA/80mW maximum

Mounting: Fasten to wall, post, etc. with complete surface mounting hardware included

Connections: Color coded wires with gel-filled butt connectors
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