Connectors; Serial Ports - RadiSys EPC-26A/27 Manual

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

There are two COM ports on the EPC-26A/27. The COM1 serial port is an RS-232
DB-9 DTE connector. It has the following drive capability: VO
load to GND and VO = 5V min @ 3K load to GND. COM1 is defined in the
H
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
Table 4. COM1 DB9 Pin-out.
4
= -5V min @ 3K
L
5
9
6
1
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