Rapier 48w Switch
12
Connect the switch to ground
The protective earth connection should be connected before proceeding with
the following power connections. The primary ground for the equipment is a
two stud grounding block (bearing the grounding symbol) located on the left
rear of the chassis, adjacent to the DC power connector.
To connect the switch to ground:
1. Using a 10 AWG (5mm 2 cross sectional area) grounding cable (green with
yellow stripe), connect the chassis grounding stud to the office primary
ground using the two nuts with integral lock washers supplied. Tighten the
nuts with an appropriate spanner.
2. Strip an 18 mm (0.75 inch) length of insulation from the grounding cable and
connect this to the grounding stud crimp terminal, using PANDUIT Uni-
Die® dieless crimping toolset. Ensure that no stranded wires protrude
from the terminal. The torque value for the chassis grounding studs is 2.57
Nm (22.8 lbf in).
Connect the DC supplies
To provide power supply resiliency, the Rapier 48w switch can receive its DC
power from either of two separate sources. Each power source should supply
48 V DC (40 to 60 VDC) to the switch. When the switch is powered by
centralized DC power, use UL Listed Type TC tray cables to connect the
equipment to the power sources. Each tray cable should have two conductors in
the range #14 to #12 AWG (2.0 to 2.5 mm2 cross sectional area), such as Belden
No. 3081A.
Each DC branch circuit should connect to the Rapier switch via a 15 A
(maximum) circuit breaker or fuse that meets the requirements for branch
circuit protection. The DC supply should be fed via a circuit breaker or switch
capable of disconnecting power during servicing. The tray cable should be a UL
Listed Type TC tray cable with two conductors in the range #14 to #12 AWG
(2.0 to 2.5 mm2 cross sectional area), such as Belden No. 3081A.
To connect the DC supply:
1. Ensure that the DC power source is powered off during installation.
2. Strip 12 mm (0.5 inches) of jacket material off the tray cable and strip 7 mm
(0.27 inches) of insulation off each individual wire.