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Idiomas disponibles
INSTRUCTION MANUAL
OPERATION
SENSITIVITY ADJUSTMENT: Press the ON key and talk about 20-40 cm away, turn the SENSITIVITY knob to the
right until the LED lights up in amber. It is permissible that, coinciding with the sound peaks, it also lights up in red.
ANNOUNCEMENT BROADCAST: Push the ON key to give an announcement and hold it on. The MESSAGING
LED lights in green to confirm the correct broadcast of the announcement.
FIFO & MIX MODES: First-In-First-Out mode (with jumper) inhibits the rest of 2694M by preventing unwanted
overlapping of other announcements. When the line is busy, the MESSAGING LED of the remaining 2694M lights
up in red and if another microphone tries to give an announcement, an acoustic warning tone is locally activated.
The MESSAGING LED lights up green only on the 2694M that is broadcasting the announcement.
Working under MIX mode (without jumper) the 2694M is not inhibited from the other in the line. The MESSAGING
LED lights up in red anyway when the line is busy.
JUMPER VOICE-TO-1M/3M: It's used to get the audio signal output throught 1M / 3M or not when the microphone
is activated. In intercom applications, might be interesting that voice is transmitted in all rooms except the same
one where the announcement is given to avoid larsen effect (without jumper). Otherwise, if 1M / 3M must have audio signal available always when the microphone is activated, then it
must be left with jumper.
WIRING: To prevent humming, the minimum section recommended is 1,5 mm² for power terminals (5 & 6) and for the audio GND terminal (2), considering that section must be the
same in all these cables (and so on impedance). The minimum section of the rest of cables is 0,25 mm².
PASS OUTPUT PILOT: Output available to connect a light indicator; it is also possible to connect a RY-PA5 relay.
CONNECTIONS AND SPECIFICATIONS
TERMINAL
1a
Left channel input of Program 1 (or mono Program 1)
3a
Right channel input of Program 1 (or mono Program 2)
2
5
Negative of power supply (0 V)
6
Positive of power supply (24 VDC)
1M
Same output as 1a in standby mode or voice with 2694M enabled
3M
Same output as 3a in standby mode or voice with 2694M enabled
M
Voice output with 2694M enabled
4
Priority output (24 VDC with 2694M enabled)
PI
Output for light indicator (24 VDC)
LINE OUT
Voice output with adjustable level through P2 potentiometer
2694M Version 1.0
FUNCTION
Audio GND
1/1
WALL MICROPHONE
WARNING:
⋅ Make sure the power outlet conforms to the power
requirements before connecting the equipment.
⋅ Do not install the unit near heat sources.
⋅ Only qualified service personnel should be allowed to
install and operate the unit.
TECHNICAL SPECIFICATIONS
Number of switched channels
1a / 1M & 3a / 3M Signal level
M microphone output nominal level
Maximum output level Line Out
Protection
Microphone frequency response
Output 4 (Voltage / Maximum current)
Output PI (Voltage / Maximum current)
Timer for PI output
Consumption
Dimensions
2694M
1 stereo or 2 mono (Passive switching)
0 dB
4,4 Vpp; 1,5V RMS; +6 dBu
0 dBu; 775 mVRMS; 2,2 Vpp
Against short-circuits in audio output
200 Hz to 15 kHz
24 Vdc / 500 mA
24 Vdc / 100 mA
Adjustable from 2" and 15" (P3)
30 mA (standby) / 90 mA (in communication)
144 x 88,2 x 34 mm
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