Cisco 4000 Series Overview
The Cisco 4000 series routers documented in this manual include the original Cisco 4000, the Cisco 4000-M, and the Cisco 4500.
This publication is specific to the orginal Cisco 4000, but includes identification information following to enable you to distinguish which type of system yours is. For information on the Cisco 4000-M and the Cisco 4500, refer the publication Cisco 4000 Series Hardware Installation and Maintenance.
Cisco 4000 series router models provide a configurable modular router platform using network processor modules--individual modules that when installed in the router are ready for external network hardware connections. The Cisco 4000 series provides flexibility, allowing network managers to easily reconfigure the router when needs change.
The original Cisco 4000 front panel is labeled Cisco 4000; both the Cisco 4000-M and the Cisco 4500 are labeled Cisco 4000 Series on the front panel. The rear label of the Cisco 4000 reads Cisco 4000, the Cisco 4000-M reads Cisco 4000-M , and the rear label of the Cisco 4500 reads Cisco 4500.
Figure 11 shows the front panel of the original Cisco 4000 router.
Figure 1-1: Original Cisco 4000--Front View
Figure 12 shows the front panel of the memory-enhanced Cisco 4000.
Figure 1-2: Memory-Enhanced Cisco 4000 Series Router--Front View
Comparison of Cisco 4000 Series Routers
| Memory Feature
| Memory-Enhanced Cisco 4000
| Original Cisco 4000
| Cisco 4500
|
|---|
| Main (CPU-Local DRAM)1
| 4, 8, 16, 32 MB
| 4 or 16 MB
| 4 or 32 MB
|
| Flash
| 4 or 8 MB
| 2 or 4 MB
| 4 or 8 MB
|
| Shared
| 4 MB
| 1 or 4 MB
| 4 or 16 MB
|
1
CPU--Central Processing Unit. DRAM--Dynamic random access memory.
Note This publication takes you through the initial hardware installation and selected maintenance procedures. For initial software configuration and operating information, refer to the
Router Products Getting Started Guide or the
Router Products Configuration and Reference publication
.
System Specifications
Design specifications follow:
- Modular router platform.
- 40-megahertz (MHz) Motorola 68EC030 32-bit microprocessor for Cisco 4000 and Cisco 4000-M. 100-MHz IDT Orion RISC microprocessor for Cisco 4500.
- Support for up to three network processor modules at a time, including Ethernet, Token Ring, dual serial, dual Ethernet, and multimode and single-mode Fiber Distributed Data Interface (FDDI) interfaces. Network processor modules can be placed in any of the three available positions in any desired combination. The router can support only one FDDI network processor module in combination with any two other types of network processor modules. For optimum heat dissipation, it is recommended that the FDDI module occupy the center slot position.
To successfully operate a multimode FDDI module, the system requires 4 megabytes (MB) of shared memory. The standard shared-memory configuration is 1 MB. For a system that has more than six ports (for example: a system containing dual-Ethernet, four port serial, and dual-serial modules), 4 MB of shared memory is also required.
- Flash memory capability
- User-upgradable network processor modules, shared memory, and processor local memory
- Jumperless router configurations
- Hardware thermal alarm to warn of excessively high operating temperature
- Rack-mountable in either a standard 19-inch rack or telco rack
- Wall, desktop, or desk-side mountable
The Cisco 4000 DC-input power supply is intended for use in DC operating environments.
Router Specifications
| Description
| Design Specification
|
|---|
| DC-input power
| 200W, 40 to 72 VDC
|
| Wire gauge for DC-input power connections
| 16 AWG1
|
1
AWG--American Wire Gauge
When using stranded wiring for DC power input, terminate the wiring with approved wiring terminations such as closed loop or spade type with upturned lugs of appropriate size for the wires. The lugs must clamp both the insulation and the conductor.
Table 1-3 lists the router specifications.
Router Specifications
| Description
| Design Specification
|
|---|
| Dimensions (W x D x H)
| 17.6" x 17.7" x 3.4" (44.7 cm x 45 cm x 8.6 cm)
|
| Weight
| 24 lb (including the chassis and network processor modules) (10.9 kg)
|
| Power
| 200W, 85-264 VAC, 50-60 Hz
|
| Processor
| Cisco 4000 and Cisco 4000-M: 40-MHz Motorola 68EC030, 32-bit wide
Cisco 4500: 100-MHz IDT Orion RISC
|
| CPU-Local DRAM
| Cisco 4000 and Cisco 4000-M: 4 or 16 MB
Cisco 4500: 8 or 32 MB
|
| Shared DRAM
| Cisco 4000 and Cisco 4000-M: 1 or 4 MB
Cisco 4500: 4 or 16 MB
|
| Flash memory
| 4 MB expandable to 8 MB
|
| Nonvolatile RAM
| 128 KB
|
| Network Interface Options
| Ethernet, Serial, Token Ring, FDDI
|
| Serial Interfaces
| RS-232, RS-449, V.35, X.21, NRZ/NRZI, DTE/DCE; EIA-530 DTE
|
| Console Port
| RS-232 DB-25 female connector
|
| Auxiliary Port
| RS-232 DB-25 male connector
|
| Nonoperating Temperature
| -40-185×F (-40-85×C)
|
| Operating Humidity
| 5-95%, noncondensing
|
| Operating Temperature
| 32-104×F (0-40×C)
|
Memory Configurations
The router has the following memory systems:
- Primary memory (main memory)--Stores the running configuration and routing tables
- Shared memory--Used for packet buffering by the router's network interfaces
- Nonvolatile memory--Stores the system configuration file and the virtual configuration register
- Flash memory--Flash Memory--Stores the Internetwork Operating System (IOS). On the original Cisco 4000, Flash memory is implemented in Flash EPROMs on the Flash EPROM card; on the memory-enhanced Cisco 4000-M and the Cisco 4500, Flash memory is implemented with Flash SIMMs.
- Boot ROM memory--Stores a subset of the operating system software image which is called the System Bootstrap image and the Bootstrap Program (ROM Monitor). The System Bootstrap image allows you to boot the router when Flash memory does not contain a valid system image.
- The boot ROM prompt is as follows: Router(boot)>. The Bootstrap Program (ROM Monitor) prompt is the greater than sign (>).
- (See Appendix B "Virtual Configuration Register" and Appendix C "Bootstrap Program.")
