Features:
- Powerful 70V amplifier drives up to 250 Watt load
- Page from any analog telecom port, or a direct microphone
- Auxiliary and Background Music inputs
- Individual and Master volume controls
- Bass and Treble controls
- LEDs show audio level and activity
- Programmable input priorities
- Chose between 3 different chime sounds
- Provides Loud Ringing / Night Bell
- Night Transfer switch input
- 600 Ohm output to drive additional amplifiers
- Adjustable Automatic Level Control
- Peak limiter and multiple protection modes
Applications:
- Paging systems requiring 8 to 250 speakers
- Paging from virtually any POTS, Centrex PABX, digital or IP phone system's analog port
- Installations that can utilize the below advantages of a 70V distributed audio system:
- Allows for longer wire runs using smaller gauge speaker wire to save costs
- Many more speakers can be connected on the same wire run to save costs
- Each speaker's volume can be individually set using its own power taps
Certifications:
The PA-250 is powerful enough to drive up to two hundred fifty (250) 70V speakers and/or paging horns. The small 1U rack size chassis is possible because the PA-250 uses amplifier technology that is 3 times more efficient than old designs competitors use. High efficiency means much less heat dissipation, smaller size, higher reliability, and lower cost. The PA-250 provides more paging power at less cost than competitors' offerings.
70V distributed audio paging systems have many other cost savings advantages such as being able to put more speakers on a wire run, having longer speaker wire runs, use of smaller gauge wire, and being able to set the volume of each speaker independently.
In addition to being able to connect to any type of analog telecom interface, such as Paging Port, Trunk Input, Analog Station, FXO (Loop Start), and FXS (Ring Trip), the PA-250 also includes a direct microphone input for paging.
Other inputs include Background Music, Aux Input, and a variety of Loud Ringing and Chime options. A 600 ohm output allows additional paging amplification to be added for an even larger system. The PA-250 features individual level controls with LED indicators for each input, automatic peak limiting, multiple amplifier protection modes, an adjustable Automatic Level Control, Bass, and Treble controls.
Touch tone programming allows users to program input priorities, pre-page alert tones, three different chime sounds, and numerous telecom settings for universal telecom system compatibility.
The Aux input allows the addition of another audio source such as a clock-controlled tone generator (Viking model CTG-1A or CTG-2A), or emergency notification system (Viking Model DNA-510), to name a few.
For more information, please see 
User Manual
