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Cisco MGX 8950 Hardware Installation Guide
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
Chapter 3 Installing a Cisco MGX 8950
Installation Procedures
Figure 3-19 Interconnect Cable for AC
The shrouds on the AC cables and the receptacles on the card cage and power trays are keyed to ensure
proper connections. Do not attempt to insert cables into shrouds that are not keyed for them.
Note
The AC power interconnect cables from each tray must be connected to the backplane. If the cables are
not connected, the power supply monitoring circuit will mistake this as voltage failure and will result in
a tripped circuit breaker.
You will need the following cables:
•
Cisco Systems part number 72-2420-XX
•
Cisco Systems part number 72-2421-XX
•
Cisco Systems part number 72-2422-XX
•
Cisco Systems part number 72-2423-XX
See
and
for assistance with connecting the AC power tray connectors to the card
cage and power trays:
Note
Cisco highly recommends that you install and use a redundant AC power supply.
Perform the following procedure to install the interconnect connections for an AC-Powered
Cisco MGX 8950 switch with a redundant AC power supply:
43982
To power
supply
(PS tray 1 J1)
To card cage
(card cage A1)
Card Cage A1
PS T
ra
y
1
J1
Alignment key
Alignment key
Table 3-2
AC Power Cable Connections
Cable Label
Card Cage Connect
Cable Label
Power Tray Connector
Card Cage A1
PSA 1
PS Tray 1 J1
J1 on primary (top) PS Tray
Card Cage B1
PSB 1
PS Tray 2 J1
J1 on secondary (bottom) PS Tray
Card Cage B2
PSB 2
PS Tray 2 J2
J2 on secondary PS Tray
Card Cage A2
PSA 2
PS Tray 1 J2
J2 on primary PS Tray
