Wiring Procedure - Cisco LightStream 2020 Installation Manual

Figure 2-3

Wiring Procedure

Warning
personnel. Untrained personnel may be exposed to hazardous DC voltages.
To wire a DC-powered LS2020 switch to a DC power source, perform the following steps:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Connections to DC-powered Chassis
Terminal block
for alarm circuit
Removable cover
Circuit breaker/
power switch
The wiring task should be performed only by a licensed electrician or qualified service
Ensure that the circuit breaker/power switch on each DC power tray is OFF.
Ensure that power to the circuit to which you will connect the LS2020 switch is OFF.
Connect the three system power wires to the LS2020 terminal block, using the slot-tipped
screwdriver to secure the terminals. Do not remove the terminal covers at the base of the
terminal block.
To connect the alarm circuit, remove the plastic terminal block cover (see Figure 2-3) and
set it aside for the time being.
Connect the alarm wires to the LS2020 terminal block, using the Phillips screwdriver to
secure the terminals.
Replace the terminal block cover.
Wiring a DC-Powered System
Terminal block
for system power
Hardware Installation 2-7