- 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 - Durable polycarbonate lens- High output long life LED technology- Four programmable flash patterns: - Single Flash - Double Flash - Quad Flash - Flicker Flash- 6 programmable beacon and strobe brightness settings- Immune to shock and vibration- 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, a combination of both ringing and off-hook (line in-use), or triggered from a contact closure- 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 Vikings E-1600-20A (DOD# 215), will not activate strobe light on Info calls - Power: 120V AC to 12V DC adapter provided- Maximum Power Supply Run Length on CAT-5: 1 pair = 125 ft, 2 pair = 225 ft, 3 pair = 325 ft, 4 pair = 475 ft- Maximum SL-2 Wire Run Length on CAT-5: 3 wires = 100 ft, 6 wires = 300 ft- 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 54C (-15 to 130 F)- Relay Contact Rating: .5A @ 125V AC/1A @ 30V DC- Minimum Loop Current: 15 mA- Minimum Ring Voltage: 25V RMS- Ringer Equivalence: 0.5 A REN- Disable/Info Switch Input: 50mA/80mW maximum- Humidity - BLK-4: 5% to 95% non-condensing- Mounting: Fasten to wall, post, etc. with complete surface mounting hardware included- Connections: Color coded wires with gel-filled butt connectors