Viking Paging/Loud Ringer PA-2A Provides loud electronic ring for night bell warehouses etc. The PA-2A monitors up to 6 C.O. lines for ring or can be activated by a key system dry contact closure. Connect to unused trunk line input or paging port on Electronic or 1A2 Key or "No KSU" phones for 2 watts of paging power (enough to drive 3 paging horns). The PA-2A can also provide background music Weather-proof paging horn incl. – Extra horn: SPC-8
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