GE D25 User Manual page 74

D25
User's Manual
Communications Ports,
Radio Keying If enabled by configuring jumper JP1 on the IED/UTC card, the Radio
Operation
Keying Output activates whenever the RTS line of XCOM1 is asserted.
Refer to Configuring Radio Keying Option on Page 126 for details.
Auxiliary Auxiliary Digital Output can be used for control functions when use of a
Digital Output
standard digital output is not practical.
For the Electrical Specifications for Auxiliary Digital Outputs see page 154.
Contact wetting must be supplied from a source external to the D25
When operating the Auxiliary Digital Output using WESMAINT, Only On or
Note
Off (latch) commands are supported.
Attempting any other mode of operation will result in an error code being
displayed.
Serial XCOM If an Ethernet or a Serial XCOM external communication module is installed
Interfaces
in the D25, the XCOM interfaces are designated COM5 and COM6,
respectively.
The Serial XCOM (part numbers 580-0991 and special order 580-0933) cards
Serial XCOM
Connection
have two DB-9-F interfaces, labeled XCOM1 and XCOM2.
They both have these characteristics:
• External power connection
• Programmed via SGConfig for:
−
−
Note:
74
Continued
RS-232 or RS-485
RS-485 2-Wire or 4-Wire
The 2 to 4-Wire wire selection in SGConfig Device Properties only
affects the internal software control (handshaking) of the interface.
It does not change the physical characteristics of the ports.
994-0081-3.00-21
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