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ERT Control/Gating Module input/output connections
Electrical connections:
Gate
output gate to trigger scanner
PC
Serial connection to PC
RESP GATE output respiration gate to trigger scanner
Power
12 VDC input power connection
AUX
Aux gate input, a user TTL input gate channel
Fiber optic connections:
ERT
AUX GATE IN
AUX GATE OUT
OPTION IN
OPTION OUT
HEATER CONTROL
Note: if optional modules (IBP, Pulse Oximetry, Fiber Optic Temperature, Fiber Optic
Pressure, Capnograph and/or Ventilator) are in use then a duplex fiber optic cable
should be connected to the OPTION IN and OPTION OUT ports and the options I/O
switch set to "options in use". Otherwise the options I/O switch should be set to "options
not in use".
Gate output pulse signal configuration
The ERT Control/Gating Module is shipped from the factory with the gate output pulse
configured appropriate for the user's anticipated scanner either TTL (H) or active low
(L).
The gate output pulse can be changed by removing the cover of the ERT
Control/Gating Module. The switch is located inside a small access hole in the RF
shield.
Scanners manufactured by Bruker require active low (L) while those manufactured by
Varian require TTL (H). The switch position as set by the factory is indicated on the
bottom of the module.
Altering monitor configuration
An option exists to open the MONITOR SETUP window after executing PC-sam. The
SETUP window is shown on the next page.
The MONITOR SETUP window allows the user to do the following:
1. Define which waveforms, gates and trends to display
2. Setup user defined traces
3. Select the respiration channel signal source
4. Change the name for the data folder for the current session
PC and ERT Control/Gating Module
Input from the ERT Module
fiber optic aux in, a user digital gate input channel
Gate or trigger pulse out
Input from optional modules
Output to optional modules
control signal for Heater Module
Revision C, August 2013
3-5
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