2-20 MAC 1200 resting ECG analysis system Revision D
2012250-095
Functional Description: Internal Interfaces
Interface to the Keypad
The interface to the keypad is realized with the connector KEYB/. It contains the
signals for the keypad rows and columns, the supply and the control signals for the
status LEDs of the keypad. The foil connecting cable is part of the keypad itself.
Connector denotation: KEYB/
Type: Foil connector, 26-pin, zero power insertion, 180°, grid
1.0 mm, Molex
Interface to the Printhead
The control data to the printhead is transferred via the flexible PCB Printhead
Connection, plugged into the connector TPC_DAT/ on the PCB Control CS_CI.
Connector denotation: TPC_DAT/
Type: Male connector 1 x 20-pin, 180°
Printhead Supply
The printhead is supplied through a 6-pin connection cable, plugged to the connector
TPC_PO on the PCB Control CS_CI.
Connector denotation: TPC_PO
Type: Multipoint connector 1 x 6 pin, 180°,
Reverse terminal protection, MODU II
The function of the individual pins is given in the table below.
TPC_PO
Pin Number Signal Function
6 COMMON Supply Voltage +22.5 V
5 GNDITPC Ground
4 COMMON Supply Voltage +22.5 V
3 COMMON Supply Voltage +22.5 V
2 GNDITPC Ground
1 +22.5V Auxiliary Voltage
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