Cisco 4500M Guide d'installation Page 3
- Page / 32
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Upgrading Memory in Cisco 4000 Series Routers 3
Safety Recommendations
Warning Before working on a system that has an ON/OFF switch, turn OFF the power and unplug
the power cord.
The following warning applies to routers with a DC power supply:
Warning Before performing any of the following procedures, ensure that power is removed from
the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that
services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of
the circuit breaker in the OFF position.
Caution To avoid damaging electrostatic discharge (ESD)-sensitive components, ensure that you
have discharged all static electricity from your body before opening the chassis. Before performing
procedures described in this document, review the next section, “Safety Recommendations.”
Safety Recommendations
Follow these guidelines to ensure general safety:
• Keep the chassis area clear and dust-free during and after installation.
• Place the removed chassis cover in a safe place.
• Keep tools away from walk areas where you or others could fall over them.
• Do not wear loose clothing that may get caught in the chassis. Fasten your tie or scarf and roll up
your sleeves.
• Wear safety glasses when working under conditions that may be hazardous to your eyes.
• Do not perform any action that creates a potential hazard to people or makes the equipment
unsafe.
Warning The ISDN connection is regarded as a source of voltage that should be inaccessible to
user contact. Do not attempt to tamper with or open any public telephone operator (PTO)-provided
equipment or connection hardware. Any hardwired connection (other than by a nonremovable,
connect-one-time-only plug) must be made only by PTO staff or suitably trained engineers.
Warning The Ethernet 10BaseT, Token Ring, serial, console, and auxiliary ports contain safety
extra-low voltage (SELV) circuits. BRI circuits are treated like telephone-network voltage (TNV)
circuits. Avoid connecting SELV circuits to TNV circuits.
- Safety Recommendations 3
- Safety with Electricity 4
- Memory Systems 5
- Cisco 4000 6
- Cisco 4000-M 6
- Cisco 4500 6
- Tools Required 7
- Removing the Component Tray 10
- Front of chassis 12
- Removing the Flash EPROM Card 14
- U41 U42 U43 U44 15
- U141 U142 U143 U144 15
- U45 U46 U47 U48 15
- U145 U146 U147 U148 15
- Memory Locations 18
- Chassis Front 19
- SIMM Orientation 21
- Upgrading Main Memory 22
- Installing Main-Memory SIMMs 23
- View from front of chassis 24
- View from front of chassis 24
- Upgrading Shared Memory 25
- Upgrading Flash Memory 26
- Removing Flash-Memory SIMMs 27
- Installing Flash-Memory SIMMs 27
- Upgrading the ROM 28
- INHIBITED 29
- Replacing the Component Tray 30
- Cisco Documentation 31
- • WWW: http://www.cisco.com 32
- • Telnet: cco.cisco.com 32
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