GARD DNP Configuration and SNMP Trap Agent
GARD 8000 SYS RFL Electronics
April 23, 2015 16-2 973.334.3100
deadband. The unsolicited message capability is disabled by default and must be enabled via an
“Enable Unsolicited Messages” command from the DNP master computer.
16.2 RS-485 CONNECTIONS
When using the RS-485 protocol, connections are made to the System I/O Module on the rear of the
GARD chassis as shown below.
GPS
IPPS
IRIG-B
RS-485
MOD BUS
DNP
Rear of 3U Chassis
ETHERNET
1PPS
RS-485
MOD BUS
DNP
POWER SUPPLY 1
ALARM
Rear of 6U Chassis
1
2
3
4
5
6
TDB+
TDB-
GND
RDB+
RDB-
GND
2W
RS-485
MOD BUS
DNP
4W
GPS
IRIG-B
RS-232
ETHERNET
Figure 16-2. RS-485 Connections