GE Grid Solutions
GE Information 994-0081-3.00-21
Installing DNP3 I/O Modules in a Rack
Rack Spacing
When mounting multiple DNP3 I/O modules in a rack, or when mounting DNP3 I/O modules in a rack
with other equipment , verify that there is at least one rack unit (RU) of space above and below the
DNP03 I/O module to allow for cooling air flow and cable routing (1 RU = 1.75 inches or 44.5 mm).
Required Clearances
The exterior dimensions of the DNP3 I/O module are:
Allow about 14 inches (356 mm) of total cabinet depth, to provide clearance for cables and maintenance
access.
Rack Mounting Procedure
To mount the DNP3 I/O module in a rack:
1. Determine the location of the DNP3 I/O module in a 19-inch mounting rack.
2. Install, but do not tighten the top two mounting screws.
Note Install the DNP3 I/O module with the LEDs visible from the front of the rack.
3. Slide the DNP3 I/O module over the top mounting screws and drop down into position.
4. Insert the bottom mounting screws.
5. Tighten all four mounting screws.
You are now ready to connect ground to the DNP I/O module. See “Connecting to protective ground” on
page 164.
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