DSPPA MP9866 - Appearance of Control Unit MP9866; Front Panel; Back Panel

* Fire protection / PA system Digital Programming Conference System
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2.2 Appearance of Control Unit MP9866
2.2.1 Front Panel
1) Power switch (Press Position 1 to turn on the power, Press Position 0 to turn off the power.)
2) Power indicator (The indicator is lit when the power is turned on, and the indicator is
distinguished when the power is turned off.)
3) Free Speech mode indicator (Free)
4) First In First Out mode indicator (Fifo)
5) Limit mode indicator (Limit)
6) Chairman Only mode indicator (C. only)
7) Auto power off indicator (A. Off)
8) Chairman priority music indicator (Music)
9) Digital function window, two segment digital display
10) System main volume adjustment knob (VOL).
11) System bass tone adjusting knob (LO).
12) System treble tone adjusting knob (HI).
13) Telephone conference switch and telephone volume adjustment knob (TEL).
14) System mode setup key (Mode).
15) Quantity setup key (Set).
16) Mode enter key (Enter).
2.2.2 Back Panel
1) Telephone input jack (TEL IN).
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