Magtek D99875494-51, Справочное руководство

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5
SECTION 2. INSTALLATION
This section describes the connections for USB and the LED.
USB CONNECTION
Pin numbers and signal descriptions for the USB connector are listed in Table 2-1. The
connector on the cable is Molex 501568-0507. One possible mating connector is Molex
501330-0500.
Table 2-1. 5-Pin USB Connector
Pin Number Signal
1 VBUS
2 - Data
3 +Data
4 Ground
5 Head Ground
LED CONNECTION
Pin numbers and signal descriptions for the LED connector are listed in Table 2-2. The
connector on the cable is Molex 501568-0307. One possible mating connector is Molex
501330-0300.
The LED pins will supply about 3.3 VDC at up to about 10 ma. No current limiting is provided,
so the external LED circuit must include an appropriate resistor
(402 Ω in the example below) to
be consistent with the choosen LED. An example circuit is shown in figure 2-1.
Table 2-2. 3-Pin LED Connector
Pin Number Signal
1 Green
2 Ground
3 Red
Figure 2-1 Example LED Circuit