Figure 57. Raw data
COM Port and Ethernet Names for Mini PCIe Cards
Table 6. Mini PCIe card details
S.No
mPCie module
Isolated COM A
(port type)
Isolated COM B
(port type)
Remarks
1
EMP2-X4S2
RS422/RS485
RS422/RS485
Total of four COM ports are detected in the Device
Manager. However, only two COM ports can be
accessed. Assume that the first COM port of EMP2-
X4S2 is COM X, as seen in the device manager, then,
based on the cable tag:
RS-422 A - COM X
RS-422 B - COM X+1
RS-485 A - COM X+2
RS-485 B - COM X+3
2
EMP2-X2S1
RS232
RS232
Total of two COM ports are detected in the Device
Manager. Assume that the first COM port of EMP2-X2S1
is COM X, then, based on the cable tag:
Isolated COM A - COM X
Isolated COM B - COM X+1
For EMP2-X2S1:
Both EMP2-X2S1 and EMP2-X4S2 use the same VID and DID. By default, the EMP2-X2S1 module uses the driver files of
the EMP2-X4S2 module, and so the device manager shows four COM ports. To overcome this issue, manually install the
EMP2-X2S1 Windows 10 64-bit driver package.
56
Setting Up the Windows 10 Operating System
