Desktop Transceiver SFX-TAP4_2/C, V0.1, Technical Description
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4.6 Output Voltages
4.6.1 Output Voltages on TAP/PIP Connector:
On TAP/PIP-Connector, two voltages are provided: +5.0V (pin 68) and +3.3V (pin 1). Both are
equipped with self-restoring fuses. This means the voltages are available again after solving the
reason of a possible overcurrent. The nominal value for the fuses is 500 mA.
The pins 1 and 68 of the TAP/PIP connector are
not
protected against wrong
polarization! The current consumption must not exceed 100 mA.
4.6.2 Switch for the function of the PwrCtrl Connector:
Switch for function of PwrCtrl pin:
1. Switch at left position:
-
Default setting
Left Position
+5V
PwrCtrlConnector
Figure 5: Switch at left Position and Block Diagram
Is the switch on the left position, 5V / 50 mA is available via relay on PwrCtrl connector. The
relay is active only during the test execution. Condition is the activation of the feature
Power
Relay enabled
. See chapter software settings.
The pins of the PwrCtrl connector are
not
protected against short circuit and
wrong polarization! The maximum current consumption must not exceed 50 mA
in the “Left Position” and 50 mA in the “Right Position”.
2. Switch is in Right Position:
-
Change possible only after open the box.
Right Position
PwrCtrlConnector
GND
Figure 6: Switch in right Position and Block Diagram
Is the switch on the left position, an open collector transistor is activated. The maximum switch
parameters are 50 mA / 20V. The Transistor is active only during the test execution. Condition
is the activation of the feature
Power Relay enabled
. See chapter software settings.
Содержание SFX-TAP2/C
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