D25
User's Manual
GE Grid Solutions
70
994-0081-3.00-21
GE Information
Communications Ports,
Continued
Table: D25
MAINT Port
Pinout
Pinout of the D25 MAINT DB-9 connector.
DB-9 Pin
RS-485
1
N/C
2
RX-
3
TX-
4
N/C
5
Com GND
6
N/C
7
TX+
8
RX+
9
EARTH GND
2-Wire RS-485
Cable
Schematic of the cable wiring necessary for 2-Wire RS-485 connection.
Description PIN #
PIN # Description
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
N/C
Data -
Data -
N/C
Common Ground
N/C
Data +
Data +
Earth Ground
N/C
Data -
Data -
N/C
Common Ground
N/C
Data +
Data +
Earth Ground
COM2
Universal Time
Code (UTC)
Port
The Universal Time Code (UTC) port located on the back panel provides a
connection to a satellite time-code receiver, or equivalent.
•
The DB-9-F UTC port can be selected for
receive-only
RS-232 or RS-422
interface, using SGConfig.
•
Supported UTC Port protocols are IRIG-B and Rugby
•
Communication parameters are determined by the protocol application.
Note
Many IRIG-B receivers are available with modulated and/or unmodulated
output options.
•
IRIG-B is received on CTS port.
•
The input to the UTC port must be unmodulated.
•
If the unmodulated output of the receiver is a coaxial connection, a converter
will be required to interface the D25.
Summary of Contents for D25
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