5-40
Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter5 Installing the Cisco MGX Switch or Gateway
Installing the MGX 8850 (PXM1E/PXM45) Switch, MGX 8850/B or MGX 8880 Media Gateway
If you are using AC power, see the “Connect the AC Power Supply Tray to the MGX 8850 or MGX
8850/B Switch” section on page5-37.
Step1 Notice that the smaller side of the backplane D-connec tor faces down, and position the smaller side of
the cable D-connector so that it also faces down. Figure 5-23 shows the connectors for the
DC PEM cable.
Figure5-23 DC PEM Cable
Step2 Use both hands to slip the connector frame through the first (source A ) or third (source B) access opening
at the bottom rear of the card cage. Move the connector straight toward the backplane so that you can
guide it through the opening. Be sure that the D-connector is fully inserted in the backplane connector
and that the captive screws on the connector frame are clearly aligned w ith the threaded holes on the
chassis.
Step3 Tighten the captive screws enough to secure the connector frame flush to the chassis. Do not overtighten
the screws or use a power screwdriver.
Step4 Plug the D-connector at the other end of the cable into the first or second DC PEM connector and t ighten
the captive screws enough to secure the connector. Do not overtighten the screws or use a power
screwdriver. Figure5-24 shows the DC PEM cabling.
17675
Connector frameTo backplane
To DC PEM
DO NOT REMOVE
CONNECTOR BAND OR COVER
Plastic cover
(only on DC systems)