Installation guide

Installing and Removing Summit X450a Series DC-Powered Switches
Summit Family Switches Hardware Installation Guide
77
CAUTION
Provide proper connection and strain relief on the DC wiring harness in accordance with all local and national
electrical codes.
Figure 48: Three-wire Cable Harness
NOTE
Each wire on the harness has been properly marked for proper attachment to the DC power source. Leave these
labels on each lead wire for future reference.
Attaching the DC Wiring Harness to the DC Power Socket on the Switch
After the DC wiring harness is connected to a permanent DC voltage source by a qualified, licensed
electrician, you can remove, replace, and maintain the Summit X450a-24tDC, Summit X450a-24xDC, or
Summit X450a-48tDC system without further electrician assistance.
NOTE
Be sure that the DC circuit is de-energized before you connect the DC wiring harness to the DC power socket.
CAUTION
Be sure that proper ESD controls are in use before switch maintenance is performed. This includes but is not
limited to wrist straps that are grounded to the switch chassis and earth grounds.
To attach the DC wiring harness to the internal DC power supply, perform the following steps:
1 Plug the DC wiring harness connector into the DC power supply socket on the rear of the switch
(see Figure 49).
The pins must align properly for the cable to completely connect. Do not force the cable into the
socket until the keyway is aligned properly. Refer to Figure 48 for the DC wiring harness connector.
EWUG005