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5-14 Input / Output MN1942
5.3 USB commun ication
5.3.1 USB port
Location USB
Mating connector: USB Type B (downstream) plug
Pin Name Description
1 VBUS USB +5 V
2 D- Data-
3 D+ Data+
4 GND Ground
The USB connector is used to connect the MicroFlex e100 to a PC running Mint WorkBench. The
MicroFlex e100 is a self-powered, USB 1.1 (12 Mbps) compatible device. If it is connected to a
slower USB1.0 host PC or hub, communication speed will be limited to the USB1.0 specification
(1.5 Mbps). If it is connected to a faster USB2.0 (480 Mbps) host PC or hub, communication
speed will remain at the USB1.1 specification of the MicroFlex e100.
Ideally , the MicroFlex e100 should be connected directly to a USB port on the host PC. If it is
connected to a hub shared by other USB devices, communication could be affected by the
activity of the other devices. A 2 m (6.5 ft) standard USB cable is supplied. The maximum
recommended cable length is 5 m (16.4 ft).
5.4 RS485 commu n icatio n
5.4.1 RS485 port (2-wire)
Location X6
Mating connector: RJ11 plug
Pin Name Description
1 TXA Transmit / receive +
2 TXB Transmit / receive -
3 GND Ground
4 +7 V out 7 V supply for Baldor accessories
5 (NC) -
6 (NC) -
The RS485 2-wire port is used to connect third-party serial devices such as operator panels. The
Baldor Keypad and Baldor HMI panel range cannot be connected to this port. The 7 V supply on
pin 4 is provided for future Baldor accessories, so care should be taken to ensure this supply will
not damage connected devices. The RS485 port could be damaged if a USB plug is accidentally
inserted while the drive is powered.
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