GE D25 User Manual page 70

D25
User's Manual
Communications Ports,
Table: D25 Pinout of the D25 MAINT DB-9 connector.
MAINT Port
Pinout
Schematic of the cable wiring necessary for 2-Wire RS-485 connection.
2-Wire RS-485
Cable
COM2 The Universal Time Code (UTC) port located on the back panel provides a
connection to a satellite time-code receiver, or equivalent.
Universal Time
The DB-9-F UTC port can be selected for receive-only RS-232 or RS-422
•
Code (UTC)
interface, using SGConfig.
Port
• 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.
70
Continued
DB-9 Pin
1
2
3
4
5
6
7
8
9
Description PIN #
N/C 1
Data - 2
Data - 3
N/C 4
Common Ground 5
N/C 6
Data + 7
Data + 8
Earth Ground 9
994-0081-3.00-21
RS-485
N/C
RX-
TX-
N/C
Com GND
N/C
TX+
RX+
EARTH GND
GE Grid Solutions
PIN # Description
1 N/C
2 Data -
3 Data -
4 N/C
5 Common Ground
6 N/C
7 Data +
8 Data +
9 Earth Ground
GE Information