Spectral Sensor Multiplexer MUX-4P0 pages

Electronic 4 Channel
Spectral Sensor Multiplexer
In der Au 27
61440 Oberursel / Germany

MUX-4P for FEE-HS

Phone: +49 (0) 6171 / 9758 – 0
Fax: +49 (0) 6171 / 9758 – 50
E-Mail: sales@tec5.com
Internet: www.tec5.com

Product-ID: 06302.10
Document: ds_mux-4p_110e.doc

Operating Modes
In mode of operation ‘sequential’, the multiplexer acts
like a static input switch for up to 4 Spectral Sensors
attached. The size of a spectral data array is equal to
the number of pixels of the active sensor.
In the operation mode ‘simultaneous‘, a combination of
two sensors can be read out almost concurrently with
the MUX-4P. To achieve this, the multiplexer interleaves the spectral data of the single sensors pixel by
pixel. So, the scans are overlapping with a time shift of
only one pixel readout clock (approx. 5 µs with FEEHS). The selectable combinations are CH1&Ch2,
Ch1&Ch3 and Ch1&Ch4. The size of a spectral data
array is equal to the sum of the number of pixels of both
active sensors.

Short Description
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Passive input multiplexer
for Front End Electronics FEE-HS
4 sensor input channels
Mode ‘sequential’ : 1 of 4 channels
Mode ‘simultaneous’ : 2 of 4 (1&2,1&3,1&4)
Input from device: Spectral Sensor or Preamp.
Output to device: Front End Electronics
Typically mounted as sandwich board on FEE
PCB dimensions 66 mm x 67 mm

General
In conjunction with a Front End Electronics the Electronic Spectral Sensor Multiplexer allows to operate up
to 4 identical sensor units (PDAs with Preamplifier Electronics or Spectral Sensors based on these arrays).
In the signal chain following the multiplexer, signals
from all sensors pass identical circuitry for video data
processing and analog-to-digital conversion, so that all
measurement channels are influenced in an identical
manner by potential inaccuracies of electronics.
The sensor interface corresponds to specification ‘Sensor_1A’. The interconnection to each sensor module is
done by a miniaturized coax line and a 10-pin flat ribbon
cable.

Module Versions
MUX-4P is available only for the Front End Electronics
module FEE-HS. The sensor interface complies to the
‚Sensor_1A‘ interface specification.

The multiplexer operating mode (the active sensor or
the combination) is selected by software and transferred to the MUX-4P via the Front End Electronics of
the Operating Electronics.

Supported Sensors
The following compatible sensor modules are currently
available:
• MMS - Spectral Sensors (not MMS-NIR)
• MCS - Spectral Sensors (equipped with Preamplifier
Electronics type DZA-S3901-4)
• Preamplifier Electronics DZA-S3901-4

Additional Features
• Local non-volatile memory,
256 Bytes capacity
• Compatible to Front End Electronics equipped with
the adapter unit ADAP_25X
• MUX-4P can be used together with the Spectral
Sensor Controller Unit MOE-C161
Power consumption:
• +5V_analog / -5V_analog:
• VCC(+5V_digital):
• +12V_analog:
• -12V_analog:

current of sensors only
typical < 5mA
typical < 5mA
typical < 5mA

Environmental conditions:
• Temperature range, operating:
0 °C ... 60 °C
• Temperature range, storage:
-40 °C ... +70 °C
• Humidity (@25°C, non condensing): 10 % ... 90 %