Power Entry Module
1-4
Cisco VCO/4K Mechanical Assemblies
3.0 POWER ENTRY MODULE
The power entry module (PEM) serves as a mechanical connection point for site power. It
includes the following (refer to Figure 3):
•
Power connector
•
Power switch
•
Power line filter
The PEM accepts AC or DC source voltages listed in Table 1.
NOTE: The power entry module accepts either a single-line AC feed, a dual-line DC
feed, or a single-line DC feed. The factory-installed power supply modules are
compatible with the power entry module configuration. The label on the power entry
module will either specify your system’s type of input power (see Figure 3) or list both
possibilities (see Figure 4). Aways verify the input power type by looking at the front
of each power supply module. Ensure that the power source is the correct current
and voltage for your facility before cabling the power source.
The line filter ensures that electromagnetic interference (EMI) neither enters nor exits the
system.
Figure 3: Power Entry Module With Input Power Type Specified
Power Switch
Window showing
ground connection.
Ensure that it is
connected.
Label. Ensure that the
power source is the
correct current and
voltage for your facility.
S/
N
:
P/
N
:
-4
0/
-60V
30/
20
A
EL
EC
T
R
IC
AL
R
A
T
IN
G
:
M
O
D
E
L
: VC
O
SE
R
IE
S
/
2
0
DC
31
04
330
010
0
R
C
I
S
Y
SC
O
S
TE
M
S
