9
CAUTION:
This unit
has more
than one
power-
supply
cord.
To reduce
the risk
of electric
shock,
disconnect
both
power-
supply
cords
before
servicing.
CUIDADO:
No abra
el aparato
ontes de
desconnector
la
alimentia'cion
THIS ASSEMBLY
CONTAINS
ELECTROSTATIC-
SENSITIVE DEVICES
CAUTION
+ -
+ -
CO ground
connector
Connect the Power (continued)
DC power supplies
1
Verify that power is off to the DC-input circuit.
2
Wire the DC-input power supply to the terminal block (see figure), ensuring that all wire
connections are secure (suggested DC-input wires are 14-AWG copper conductors):
• Ground wire to the ground connector (you should always connect the ground wire
first and disconnect it last)
• –48V wire to the “
−
” connector
• –48V return to the “
+
” connector
3
On a new installation, remove the adhesive strip covering the CO ground connector.
4
Connect a 10- to 12-AWG copper conductor ground wire to the CO ground connector on
the switch. Use a ground wire lug that is 0.320 inch (7.8 mm) or less.
5
Restore power to the DC circuit by turning the circuit breaker on (|).
Warning
Before performing the following procedure, ensure that power is removed
from the DC circuit.
4
