Cisco MGX 8950 Installation Manual page 39

Chapter 3 Installing a Cisco MGX 8950
Figure 3-21 Interconnect Power Connections for AC
Connect the DC PEM to the Cisco MGX 8950 Switch
A system power cable carries –48 VDC current from a DC-PEM to the backplane (see
The DC power interconnect cables from each PEM must be connected to the backplane. If the cables are
Caution
not connected, the power supply monitoring circuit will mistake this as voltage failure and will result in
a tripped circuit breaker.
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
DC OUT
AC IN
AC IN
DC OUT
AC IN
AC IN
Cisco MGX 8950 Hardware Installation Guide
Installation Procedures
Figure 3-23).
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