The strobe light unit(s) shall be Alpha Communications® / TekTone LI404B or approved equal. Operation shall be accomplished by placing a call to an apartment intercom (or video-intercom) station. The strobe shall flash for approximately 15-20 seconds after activation of the incoming call signal.
The strobe light shall have a brightness of 15 candela per UL® 1971 (75 candela per UL® 1638). It shall be encased in an attractive, flame retardant type ABS plastic housing.
The strobe light shall meet ADA and UL® requirements for signaling appliances. The strobe shall be powered by the appropriate 24VDC power source (PK601A or equivalent).
Contractor shall observe all local and national electrical and building codes.
The Alpha Communications® / TekTone LI404B strobe is a high-intensity remote visual signaling device for use with Alpha Communications® IA543, PK543, PK543A, PK205, or PK292A amplifier apartment systems, and optionally with the Alpha Communications® IA502 or PK502B transfer relay(s).
The unit is primarily for use in locations where hearing-impaired persons require supplemental call notification, but can be used anywhere that a visual indication of an incoming call is desired. The bright strobe light flashes once a second for approximately 15-20 seconds when an incoming call is detected.
The device can be installed in most standard single or double gang electrical boxes or similar indoor openings. It is not a weatherproof device and therefore should not be used for any outdoor applications. Installation is facilitated by use of simple connections to the pre-mounted circuitry and a complement of mounting hardware. The LI404B's strobe light portion meets ADA and UL® 1971 requirements.
|Dimensions:|| Height: 5.60" (143mm)
Width: 4.60" (117mm)
Depth: 3.50" (89mm)
Projects: 2.25" (58mm) from mounting surface
|Construction:||Attractive flame retardant type ABS plastic casing|
|Strobe:||15 cd per UL® 1971|
|Power:||24 VDC, 57 mA DC nom|
|Wiring:||18 ga. minimum, 750' maximum|
|Mounting:||Steel City #H2BD box with Steel City #2GC plaster ring, or Alpha Communications® Model IH356 box with IH355 ring, or EXACT EQUAL.|