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Connecting DC Power to the DGS-3700 Series
Follow the instructions below to connect the DC power supply of the Switch to the DC power source.
1. The DC power supply has a three-terminal wiring block consisting of a positive (+), a negative (-) and a safety
ground terminal.
2. Firmly attach the DC power to the negative and positive contacts on the wiring assembly.
The black negative pole (-) connects to the -48V contact.
•
The red positive pole (+) connects to the -48V Return contact.
•
If available, an earth ground may be connected to the center contact post.
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3. Tighten the contact screws to secure the connection.
DGS-3700 Series Layer 2 Gigabit Ethernet Switch Hardware Installation Guide
Figure 2- 6. Power connections attached to contacts after assembly
NOTE: Use a minimum 18 gauge (AWG) wire.
All power connection wiring should conform to the rules and regulations in the
National Electrical Code (NEC), as well as any local codes.
A branch circuit over current protection must be rated between 2A to 10A.
CAUTION: This equipment must be grounded.
CAUTION: T his eq uipment m ust be i nstalled and maintained b y qualified s ervice
personnel only.
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