Specifications
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4. Connectors
This chapter specifies the details of the connectors on the EPC. These connectors
adhere to existing standards. Pins are labeled from the point of view of looking into
the front of the connector on the EPC.
Serial Ports
The COM1 serial port is a DB-9 DTE connector defined in the following table.
Pin Signal Pin Signal
1 DCD 6 DSR
2 RxD 7 RTS
3 TxD 8 CTS
4 DTR 9 Ring indicator
5 Ground
The COM2 serial port is a DTE RJ-45 phone jack connector defined in the following
table:
RJ-45 Signal DB25
1 Shield 1
2 CTS 4
3 TxD 3
4 DTR 8
5 RxD 2
1
5
6
9