Bogen MULTICOM 2000, Руководство по установке

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5) With the person at the speaker location speaking, rotate the Switching Sensitivity control (R119) counter-
clockwise so that the unit does not switch to the talk mode.
6) Have the person at the speaker location make loud impulse noises (such as hand clapping) that may be
characteristic of the environment. If necessary, make additional adjustments to the Switching Sensitivity
control so that the unit does not switch momentarily to the talk mode.
7) Speak into the telephone handset in a normal paging voice. The circuit should switch to the talk mode
(switching will be apparent by the total absence of background noise in the handset earpiece). If the unit
does not switch, increase the sensitivity by rotating the Switching Sensitivity (R119) control clockwise until
switching becomes consistent. Recheck the unit’s response to impulse noises (step 6), making sure that
the person at the speaker location is not uncharacteristically close to the speaker.
8) To set the switching delay, start a moderately fast alternate count between the telephone side and the talk
back side. Adjust the Switching Delay control (R118) so that the complete response from the talk back
side can be heard. (Clockwise rotation minimizes delay, counterclockwise rotation increases delay.) Then,
while speaking into the telephone handset, check the delay to ensure it will allow short pauses between
words without switching into the talk back mode. Adjust for a slightly longer delay if the unit switches
between words. A slight pause is generally advisable for speech continuity and intelligibility.
Power Supplies
Model MC512B
Type: Regulated, switching
Output Voltage: +5V DC @ 25A, -5V DC @ 0.5A, +12V DC @ 10A, -12V DC @ 0.5A
Ripple: Less than 20mV p-p on any output
Power Consumption: 75 watts maximum (under normal operating conditions with 120 station system);
Power supply is capable of 250 watts total output
Power Required: 110/120 V AC ±20%
Fuse: 1 x 3A (internal) Part No. 94-0001-08
Output Connectors: 2 x 6-position, polarized; 4 x 4-position, polarized
Model MC2626B
Output Voltage: ±26V DC and -26V DC nominal, unregulated
Output Current: 4A
Power Consumption: 230 watts maximum
Power Required: 120 V AC ±10%
Fuses: 1 x 2A Part No. 94-0001-06; 2 x 4A slo-blo Part No. 94-0001-21
Output Connectors: 1 x 4-position, polarized