xStack® DES-3200 Series Layer 2 Ethernet Managed Switch Hardware Installation Guide
Figure 2-4. Close-up view of Power Receptacle
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.
a. The negative pole (-) connects to the -48V contact.
b. The positive pole (+) connects to the -48V Return contact.
c. If available, an earth ground may be connected to the center contact post.
3. Tighten the contact screws to secure the connection.
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: This equipment must be installed and maintained by qualified service personnel only.
Alarm Connector (DES_3200-28/ME only)
Connect alarm and/or intrusion detection devices to the alarm connector to trigger events.
Figure 2-1 Alarm Connector
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