Description: Series 4000 Annunciator panels provide clear indication of all incoming calls. Anodized aluminum finish. Surface or flush mountable. 10, 15 or 25 LED indicators per row are provided for visual alert; an electronic tone, for audible alert. Two tone board operations are available: the (TG) for single status and the (AT) for dual or triple status systems. Operation: When an associated call station is activated, the LED will illuminate. Panel also includes a Hi-lo tone switch, lamp check switch and power indicator for optimum operations. Options: Tone Options: Two options are available, one for single status and another for multiple status systems. Custom Sizes: Call factory for custom sizes to be manufactured to your specifications. Mounting: Available in flush wall-mounted or optional oak finished surface or sloping desktop enclosures. WE - wall enclosure for surface mounting. SE - sloping enclosure for desk top mounting.