Number Item Description
32 Input 6 – Microphone or Line input 6, with TRS-jack / XLR balanced signal
input connector.
– Microphone input 6 sensitivity: 1.5 mV, 600 ohm balanced.
– Line input 6 sensitivity: 200 mV, 10 kohm balanced.
34 Input 5: – Microphone or Line input 5, with TRS-jack / XLR balanced signal
input connector.
– Microphone input 5 sensitivity: 1.5 mV, 600 ohm balanced.
– Line input 5 sensitivity: 200 mV, 10 kohm balanced.
35 Input 4 – Microphone input 4, with TRS-jack / XLR balanced signal input
connector.
– Microphone input 4 sensitivity: 1.5 mV, 600 ohm balanced.
37 Input 3 – Microphone input 3, with TRS-jack / XLR balanced signal input
connector.
– Microphone input 3 sensitivity: 1.5 mV, 600 ohm balanced.
38 Input 2 – Microphone input 2, with TRS-jack / XLR balanced signal input
connector.
– Microphone input 2 sensitivity: 1.5mV, 600 ohm balanced.
41 Input 1 – Microphone input 1 with TRS-jack / XLR balanced signal input
connector.
– Microphone input 1 sensitivity: 1.5 mV, 600 ohm balanced
42 Input 1 RJ45 connector This input is intended for a PLE-1CS or PLE-1SCS all-call Call Station,
which is connected with a Cat-5 cable and adapter box (supplied with
the unit). This allows for different length standard Cat-5 cables to be
used.
The PIN assignments of the RJ45 are as follows:
– Pin 1: Audio+
– Pin 2: Audio-
– Pin 3: Ground
– Pin 4: Trigger+
– Pin 5: Trigger- (Ground)
– Pins 6‑8: Not connected
A contact closure between pin 4 and 5 will activate the chime signal and
give priority to input 1. It will mute signals on other inputs, except for
the Telephone/Emergency input (46/47). The PTT switch (40) must be
ON.
44
8Ω MOH output 1 W, unbalanced Music-on-Hold output terminal for monitoring of the
internal music source or Music inputs 1-3 signals, selected by the music
source selector (7).
45 Balanced MOH output 600 ohm, 1 Vrms, transformer isolated balanced Music-on-Hold signal
for monitoring of the internal music source or Music inputs 1-3 signals,
selected by the music source selector (7).
46 Telephone/Emergency 100 V
input
A balanced 100 V input, compatible with loudspeaker line signals. This
input has a gate function (VOX); when the signal level exceeds a -10 dB
level, it gets the highest priority and overrides all other inputs.
Plena All-in-One System Connection | en 15
Bosch Security Systems B.V. Installation and Operating Manual 2014.09 | V1.2 |
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