TM70Bi V3.2 (11/02)
1121174 L0.pdf
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OUTPUTS
Each analogue output has two serial relays that switch the output signal to one of two ways, the direct or the
inverse. If not activate any of the relays, both outputs (the direct and inverse) are disconnected.
OUTPUT PWM1
The connections of the output 1 are through 4 pole terminal plug, with the follow pin assignment:
Output 1 connector
Pin Name
Function
VPP1
Power of channel 1
GND1
Ground of channel 1
VO1
DIRECT analogue PWM output of channel 1
VR1
INVERSE analogue PWM output of channel 1
OUTPUT PWM2
The connections of the output 1 are through 4 pole terminal plug, with the follow pin assignment:
Output 2 connector
Pin name
Function
VPP2
Power of channel 2
GND2
Ground of channel 2
VO2
DIRECT analogue PWM output of channel 2
VR2
INVERSE analogue PWM output of channel 2
ISP (PROGRAMACION “IN CIRCUIT” / “IN SYSTEM”)
The expansion has a connector to record “In-System” (eg. Microprocessor software update). This connector has
10 pins:
ISP connector
Pin name
Function
ISP2
Input connected to the ground to place the microcontroller in recording mode
TX2
Not used
RX2
Receiving data signal
GND
Ground
RX1
Receiving data signal
TX1
Transmisión data signal
ISP
Not used
VCC
Power supply output at 3,3 V
MRNOT
Reset input, active when it is connected to ground
+VI
Power supply output at 12 V (not stabilized, can vary between 8 y 22 V)