VTS 2030 Modular Measurement System

MCD's Modular Measurement System was developed based on a consisting plug system, related to the test system series "VTS 2030". It is a measurement system with a PCB basis that can be flexibly built with so-called Function Modules. The Bus Master founds the groundwork of the Modular Measurement System. Frequently used features are accomodated on it, for example on-board voltage generation (3,3 V / 5 V / +15 V / -15 V), two I2C bus, two counter inputs as well as a digital IO port.

The real range of functions of this system is determined by an individually selection of the Function Modules. These modules are connected to stackable module carriers in packages of four. That way, there can be up to 16 different Function Modules applied. By the easy possibility of changing and combining the Function Modules via plug connection, various test applications are possible in cooperation with the Bus Master. Special DUT controlling, as well as complex buses, diagnostic interfaces or parallel applications are standardized and easily implementable.

  • Consists of a Bus Master, a maximum of four module carriers (stackable) and up to four Function Modules at each module carrier
  • Distance between stacked modules approximately 15 mm, total height approximately 80 - 85 mm in full expansion
  • Connection between the stacked module carriers and the Bus Master via 40 pol pin header
  • Internal and external MCD bus provided by Bus Master
  • Bus Master generates different operation voltages (3,3 V, 5 V, +15 V, -15 V)
  • Two I2C Bus Masters, two counter inputs, two connections on the codec for synchronous audio connections configurable
  • Interface supply via USB, also without 12 V supply functional
  • Electrical connection between module carriers and Function Modules via socket
  • DigitalOut, AnalogIn, Analog and Digital-Mux Function Modules as a standard, flexible expandable for example with Multimeter, PWM, CAN/LIN or audio moduls
  • No additional hardware is required on the PC
  • Robust software drivers
  • Long-term secure investment
  • Easy and quick adjustment to specific applications
  • Design and development of MCD

MCD Bus Master

Size 190 mm / 100 mm
Connectors Pin header Samtec
Pin header Samtec
Pin header Samtec

Pin header (40 pol)
External MCD Bus
2x I2C Digital port (PCM, PWM, SPI or Digi-I/O)
Connection module carrier
Operating voltage 5 V ± 5%
12 V ± 5%
Via UBS-B
Via external DC connector / plug-in screw (2 pol)
Current consumption in operation 5 V: 200 mA max.
12 V: 6 A max.
Typ. 170 mA
Load-dependent
Input / output voltage ± 15 V / 12 V / 5 V / 3,3 V / GND Via plug-in screw (7 pol)
Control Virtual COM port via USB 2.0 High Speed

Function Module Analog-In

Size 67,6 mm / 50 mm
Connectors Pin header Samtec
IPL1-120-01-L-D-RA-K
4x voltage inputs
2x stimulation current outputs
2x GPIOs
Analog measuring range ± 50 V
Resolution analog measuring range 0,01 mV
Tolerance analog measuring range 0,005 %
Common mode voltage ± 20 V max. Related to GND
Input voltage (against GND) ± 75 V max. No safety isolation
An external touch protection has to be adapted at voltages > 50 V
Common mode rejection typ. 76 dB
Input resistance Differential
Against GND
2 MΩ
1 MΩ
Refresh rate SlowSpeed
HighSpeed
10/s
80/s
Stimulation current output 2 channels Individually turning on and off
Current signal stimulation current output 50, 100, 250, 500, 750, 1.000, 1.500 µA Both channels only adjustable together
Tolerance stimulation current output 6 % max. Typ. 1 %
Matching Typ. 0,15 %
Output voltage 5 V max.
3 V max.
Without adhering to signal current
While adhering to signal current
Digital GPIO 2 channels Input / output / disconnected
Output level 5 V TTL
Output impedance ≈ 330 Ω
Input threshold Low = 1,5 V / High = 3,5 V
Input leakage current ± 10 µA max.
Frequency 1 MHz max.

Function module Digital Out

Size 67,6 mm / 50 mm
Connectors Pin header Samtec
IPL1-120-01-L-D-RA-K
Consistent socket element
IPD1-20-D-K
Controlling MCD Bus without addressing
Vcc 1 and Vcc 2 5,5 V ... 40 V
Current consumption (Vcc) Respectively 9 mA max.
Output current high / low ± 500 mA max.
Output current high impedance ± 300 µA max.
Output impedance high / low 2 Ω max.

Function module Analog Mux

Size 67,6 mm / 50 mm
Connectors Pin header Samtec
IPL1-120-01-L-D-RA-K
Consistent socket element
IPD1-20-D-K
Controlling MCD Bus without addressing
Vcc pos. 0 V ... 20,5 V
Vcc neg. -20,5 V ... 0 V 50 µA without load
Analog signal scope ± 14,5 V
Vcc neg. +0,5 V ... Vcc pos. -0,5 V
Without voltage at Vcc pos. and Vcc neg.
Switching resistance 2,5 Ω max.
2,7 Ω max.
25° C
0 ... 70° C

Function module Digital Mux

Size 67,6 mm / 50 mm
Connectors Pin header Samtec
IPL1-120-01-L-D-RA-K
8x digital inputs
8x digital outputs
3,3 V / 5 %
5 V / 5%
Level default inputs 1,65 V ... 5,5 V 3,3 V and 5 V available at connector plug and directly bridgeable
Switching level inputs Low = 35 % / High = 65 %
Low = 0,7 V / High = 1,7 V
Low = 0,8 V / High = 2 V
Low = 30 % / High = 70 %
Specifying 1,65 V ... 1,95 V
Specifying 2,3 V ... 2,7 V
Specifying 3 V ... 3,6 V
Specifying 4,5 V ... 5,5 V
Level default outputs 1,65 V ... 5,5 V 3,3 V and 5 V available at connector plug and directly bridgeable
Switching level outputs Low = 0,45 V max. / High = target -0,1 V min.
Low = 0,3 V max. / High = 1,2 V min.
Low = 0,55 V max. / High = 1,9 V min.
Low = 0,55 V max. / High = 2,4 V min.
Low = 0,55 V max. / High = 3,8 V min.
Specifying 1,65 V ... 4,5 V / I out = 100 µA
Specifying 1,65 V ... 1,95 V / I out = 4 mA
Specifying 2,3 V ... 2,7 V / I out = 8 mA
Specifying 3 V ... 3,6 V / I out = 24 mA
Specifying 4,5 V ... 5,5 V / I out = 32 mA
Maximal loss performance driver 0,5 W
Delay between input and output during multiplexing operation Typ. 20 ns
Frequency 1 MHz max.

Modular Measurement System MCD Bus Master
Order number: 153036

Modular Measurement System Module Carrier
Order number: 153035

Modular Measurement System Function Modules
Function Module Analog-In
Order number: 152733

Function Module Digital Out
Order number: 153032

Function Module Analog Mux
Order number: 153033

Function Module Digital Mux
Order number: 153034