Cisco MGX 8950 Installation Manual page 40

Installation Procedures
Figure 3-22 Cable Assembly for System Power
Alignment key
To power supply
(PEM1 J1)
The connectors on the DC cables are keyed to ensure proper cabling to the DC PEM. Improper cabling
Caution
may cause damage to the system.
Figure 3-23
Use the following cables to install interconnect cables for DC systems:
Cisco Systems part number 72-2424-XX
•
Cisco Systems part number 72-2425-XX
•
Cisco Systems part number 72-2426-XX
•
Cisco Systems part number 72-2427-XX
•
Refer to
card cage:
Table 3-3
Cable Label
Card Cage A1
Card Cage B1
Card Cage B2
Card Cage A2
Cisco highly recommends that you install and use a redundant DC power supply.
Note
Perform the following procedure to install the interconnect connections for an DC-Powered
Cisco MGX 8950 switch with a redundant DC power supply:
Caution Do NOT use power tools for this procedure.
Insert the connector labeled "Card Cage A1" into the card cage receptacle labeled "PSA 1."
Step 1
Push the connector in to seat it.
Tighten the captive screws firmly by hand.
Step 2
Cisco MGX 8950 Hardware Installation Guide
3-40
diagrams in detail the cabling for the DC system.
Table 3-3 and Figure 3-23
Interconnect Power Connections for DC
Card Cage Connection
PSA 1
PSB 1
PSB 2
PSA 2
Alignment key
To card cage
(card cage A1)
to assist you with connecting the DC power tray connectors to the
Cable Label
PEM 1 J1
PEM 2 J1
PEM 2 J2
PEM 1 J2
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
Chapter 3 Installing a Cisco MGX 8950
PEM Connection
J1 on primary (bottom) PEM
J1 on secondary (top) PEM
J2 on secondary PEM
J2 on primary PEM