Installing Dnp3 I/O Modules In A Rack; I/O Modules Rack Spacing; Required Clearances; Rack Mounting Procedure - GE Multilin D400 Instruction Manual

Installing DNP3 I/O modules in a rack

Rack spacing

Required clearances

Rack mounting procedure

Connecting to protective ground

176
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).
The exterior dimensions of the DNP3 I/O module are:
Dimension Measurement
Width 19 inches (
Height 5.25 inches (
Depth 2.5
Allow about 14 inches (356 mm) of total cabinet depth, to provide clearance for cables and
maintenance access.
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.
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 176.
Connect your DNP3 I/O module to site ground, using a separate 2.05 mm (12 AWG) Yellow/
Green wire.
Each type of DNP I/O Module has a different ground point, as shown in the examples of
Table 57.
The location of the protective ground terminal varies between WESTERM I/O module types.
Refer to Module Layout drawing of your module for detailed information. For example, see
Table 57.
APPENDIX B INSTALLING AND CONNECTING DNP3 I/O MODULES
483 mm)
133.4 mm)
inches (63.5 mm)
GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL