Bosch Plena PLE-1CS Reference guide

Plena Call Station
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Bosch Security Systems | 2007-10 | PLE-2MA120-EU, PLE-2MA240-EU en
Plena Mixer Amplifier | Installation and User Instructions | Connections and settings en | 16
4.1.2 Priority microphone (input 1)
The priority microphone (or a generic call station) that
can be used with push to talk (PTT) should be
connected to “microphone/line 1 input”. The PTT
mode can be activated by setting the DIP switch (4) at
the rear of the unit. Microphone/line 1 input has
priority over all other microphone/line inputs.
If, however, the “Tel. emergency/100V input” receives a
signal, all inputs including microphone/line 1 input will
be overruled.
The microphone/line 1 input has two connectors wired
in parallel:
• an XLR connector (for a 3 pole microphone), and
• a Euro style pluggable screw terminal connector.
The Euro style pluggable screw terminal connector has
a trigger input, which can be used in combination with
the Euro and XLR connector.
The priority microphone can be connected to the
microphone/line 1 input as follows:
• XLR connector only. See figure 4.2.
• XLR connector with trigger. See figure 4.3.
• Euro connector with trigger. See figure 4.4.
• Euro connector only (without trigger).
Set the DIP switch settings next to the XLR connector
for microphone/line 1, as required. See section 4.3.
Note
If a microphone is connected to both the
XLR connector and the Euro connector for the
microphone/line 1 input, the input signals will be
added together.
Note
When connecting an unbalanced line level
(200 mV) signal to the microphone/line input,
connect it as follows: Signal to pin 2, pin 1 and
pin 3 to ground.
figure 4.2: XLR connector only
figure 4.3: XLR connector with trigger
figure 4.4: Euro connector with trigger

Installation/configuration notes
3
S1
S2S3
5
4
2
1
1 2 3 4 5
Circuit diagram
Parts included
Quantit
y
Component
1PLE-1CS PLENA All Call Call Station
Technical specifications
Electrical
Phantom power supply
Voltage range 12 to 48 V
Current consumption <8 mA
Performance
Sensitivity 0.7 mV @ 85 dB SPL (2 mV/Pa)
Maximum input sound level 110 dB SPL
Distortion <0.6% (maximum input)
Input noise level (equiv.) 28 dB SPLA (S/N 66 dBA ref. 1 Pa)
Frequency response 100 Hz to 16 kHz
Output impedance 200 ohm
Mechanical
Base dimensions (H x W x D) 40 x 100 x 235 mm
(1.57 x 3.97 x 9.25 in)
Weight Approx. 1 kg (2.2 lb)
Color Charcoal with silver
Stem length with mic. 390 mm (15.35 in)
Cable length 2 m (6.56 ft)
Environmental
Operating temperature -10 ºC to +45 ºC (14 ºF to +113 ºF)
Storage temperature -40 ºC to +70 ºC (-40 ºF to
+158 ºF)
Relative humidity <95%
Ordering information
PLE‑1CS Plena All‑Call Call Station
All-zone call station with 2 m cable and lockable Euro
style connector.
Order number PLE-1CS
2 | PLE‑1CS Plena All‑Call Call Station