Installation guide

Installing Summit Family Switches
Summit Family Switches Hardware Installation Guide
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To ground the switch:
1 Using the provided Phillips screw, attach the ring terminal to the grounding point on the rear of the
chassis (see Figure 47).
Figure 47: Attaching the Ground Wire
2 Tighten the screw using a Phillips screwdriver.
3 Connect the other end of the wire to a known reliable earth ground point at your site.
Connecting the DC Wiring Harness to the DC Source Voltage
After the internal DC power supply is installed, it must be connected to a DC power source. A
three-wire, 6-foot long DC wiring harness is included with the Summit X450a series DC switch and
internal DC power supply. The DC wiring harness must be properly connected to the DC source voltage
at your facility by a qualified electrician before the connector on the wiring harness can be attached to
the DC power supply socket on the switch. Figure 48 shows the wiring harness and connector. For
information about the wire-to-pin connection, see Table 33 on page 146.
WARNING!
The Summit X450a-24tDC or Summit X450a-24xDC switch and rack must be connected to protective earth ground
before installing any switch components.
WARNING!
Wiring the DC input power harness to your facilities DC source voltage must be performed by a qualified, licensed
electrician. After the wiring harness is connected to a permanent DC voltage source by a qualified, licensed
electrician, you can remove, replace and maintain a Summit DC-powered switch without further electrician
assistance. However, always be sure that the DC circuit is de-energized before connecting or disconnecting the DC
power connections at the rear of the switch.
CAUTION
The DC wiring harness must be properly connected to a DC main circuit breaker rated no greater than 20 A.
SH_037
Grounding
point
Ground wire