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Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter 5
Installing the Cisco MGX Switch or Gateway
Installing the MGX 8830 or MGX 8830/B Switch
Figure 5-80
Rear View of the MGX 8830 with Two DC PEMs Installed
Note
Depending on your order, there will be either one or two DC PEMs installed and shipped with
your MGX 8830 system.
Step 2
Locate the pluggable terminal block (TB1) on the DC PEM to which you are connecting source power
Figure 5-81
shows the DC PEM faceplate.
Figure 5-81
DC PEM Faceplate
Step 3
Note the polarities of the TB1 connection points.
Figure 5-82
illustrates the polarity of each connection on the pluggable terminal block. The numbers
start with 1 on the left and go to 3. The connection at the left is for the –48 VDC wire. The middle wire
is safety ground. The connection at the right is for the positive return wire (for the –48 VDC).
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48
VDC
30A
TB1
1
2
3
OFF
48
VDC
30A
TB1
1
2
3
OFF
48
VDC
30A
TB1
1
2
3
OFF
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