1. We are working on developing “cheap” RTD monitoring channels for the CMS Phase-2 requirements.
The channels will provide the complete readout for 4-wire RTD sensors in the detector volume (~100 m distance).
The values will be made available by an OPC server that can directly integrate them in the WinCC OA DCS
environment of the detector.
We are finished testing with the commercially available Analog Devices autonomous RTD readout circuits. Up to now our tests
with the chip are very satisfactory. Studied all single chip functionalities and software.
We are currently designing a 3U Eurocard format prototype PCB (comfortable mechanical, powering and connectivitythat is
commonly used in our environment) that will house 4 such chips (24 RTD/card, 20 cards/crate=480RTD) and communicate to
a controller. This will not be prototyped before Q The software for the controller communication to the cards as well as
the OPC Server functionality have to be programmed and tested.

2. 96-pin VME-like connector for INPUTS
PCB
96-pin VME-like connector for READOUT
96 pins, 4 pins/RTD = 24 RTD
6 RTD/chip
4 chips = 24 RTD √
SPI bus
Chip Select lines

3. FPGA or CPU or BOTH (Xilinx Zinq) 96-pin VME-like connector for INPUTS
1 Crate:
1 controller
20 boards
480 RTD
FPGA or CPU or BOTH (Xilinx Zinq)
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS
96-pin VME-like connector for INPUTS