Cisco TelePresence Server 7010 Manual de instrucciones de sustitución - Página 6
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Prerequisites
Cable Strain Relief
If possible, position the new replacement chassis close enough to the existing system so that you can
avoid having to disconnect power and interface cables. Be sure to disengage any strain relief devices
before attempting to pull the cables from the port. Following are descriptions of the different
methods of strain relief that are used on the AC-input and DC-input power cables and the various
types of network interface cables:
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When removing any cable, pull the cable out at the connector; never pull or tug on the cable itself.
For detailed descriptions of the system components, refer to the Cisco 7010 Hardware Installation
and Maintenance or Cisco 7505 Hardware Installation and Maintenance publications.
Preparing the Work Area
Although some network downtime is unavoidable while you remove the RP and SP (or SSP) or
RSP1 from their respective chassis, and replace them in the new chassis, you can minimize the
downtime by placing the old and new chassis close together. If your existing chassis is mounted in
a rack and there is space in the same rack or another rack close by, we recommend that you install
the new, empty chassis in the rack before moving the components. (A fully configured chassis
weighs approximately 70 pounds.)
Before installing the chassis in a new rack location, ensure that routing the interface cables to the
new positions will not strain or tangle them.
You can further minimize downtime by leaving interface cables attached when you move interface
processors to the new chassis, provided that doing so will not strain the cables.
Leave network interface cables connected to the interface ports only if the following conditions are
true:
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6 Cisco 7010 and Cisco 7505 Chassis Replacement Instructions
On the AC power input receptacle (on the interface processor end of the AC-input powered
chassis), a cable retention clip (see Figure 1 or Figure 2) snaps up around the plug on the power
cord to prevent it from being inadvertently pulled out of the receptacle. Before attempting to
disconnect the power cable, be sure to push the retention clip down away from the plug.
On the DC-input power supply, a nylon cable tie is used to fasten the power cable to a bracket
located just below the input terminal block. Carefully cut this cable tie before you disconnect the
power cable leads from the terminal block, and replace the cable tie after you install the new
chassis and wire the power cable leads to the terminal block.
Serial interface cables (all types) use thumbscrews on the cable connectors that secure the cable
to the Fast-Serial Interface Processor (FSIP) port.
Ethernet interface cables use either slide-type locks or thumbscrews. Although all Ethernet
Interface Processors (EIPs) ship from the factory with slide-type locks on each port, all EIPs also
include conversion kits for replacing the slide-type locks with jackscrews to accommodate
Ethernet interface cables with thumbscrews.
Multimode, Fiber Distributed Data Interface (FDDI) connectors use small plastic arms on two
sides of the connector that act like springs and are constrained by the inside of the connector port.
To remove a multimode cable from a FDDI Interface Processor (FIP) port, pinch the two plastic
arms inward while pulling the connector out of the port.
You are able to place the new chassis close to the existing chassis, and moving the processor
modules to the new chassis will not strain the interface cables.
The new chassis is already located in its permanent location, or you will need to move it only a
few feet into the space vacated by the old chassis when it is removed.