Juniper EX2300 Series - Page 154

• DC power source cables (14 AWG) with ring lug (Molex 0190700067 or equivalent) (not provided)
aached to them by a licensed electrician
• Phillips (+) screwdriver, number 2
This procedure is applicable only to the EX2300-24T-DC model. The power supply is built-in along the
rear panel in the EX2300-24T-DC model.
WARNING: DC-powered switches are intended for installaon only in a restricted-
access locaon.
To connect DC power to the switch:
1. Ensure that the input circuit breaker is open so that the cable leads do not become acve while you
are connecng DC power.
NOTE: The DC power supply in the switch has four terminals labeled INPUT 1+, INPUT 1–,
INPUT 2+, and INPUT 2– for connecng DC power source cables labeled posive (+) and
negave (–). The terminals are covered by a clear plasc cover.
NOTE: The INPUT 1+ and INPUT 2+ terminals are referred to as +RTN and INPUT 1– and
INPUT 2– terminals are referred to as –48 V in DC Power Wiring Sequence Warning and "DC
Power Electrical Safety Guidelines" on page 291.
2. Grasp the plasc cover in the middle, gently bend it outward, and pull it out. Save the cover.
3. Remove the screws on the terminals by using the screwdriver. Save the screws.
WARNING: Ensure that the power cables do not block access to switch components
or drape where people can trip on them.
NOTE: To supply sucient power, terminate the DC input wiring on a facility DC source that
is capable of supplying a minimum of 7.5 A at –48 VDC.
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