Instruction/ maintenance manual of the product MGX 8240 Cisco Systems
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CHAPTER 2-1 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 2 Description Physical Description The MGX 8240 shelf is a multi-slot chassis, supporting multiple PSM cards and their associated interface I/O assemblies.
2-2 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description Figur e 2-1 MGX 8240 Fr ont V iew Physical Interfaces & Specifications This section describes the types of physical interfaces supported by the MGX 8240.
2-3 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description T able 2-2 shows the dimensions of an unmounted MGX 8240 unit.
2-4 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description Figur e 2-2 MGX 8240 Ph ysical Dimensions The shelf is designed to be center-mounted in a standard telecom 23-inch relay rack. T wo chassis can be mounted in a standard 7-foot conf iguration.
2-5 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description Figur e 2-3 Slot Designation (Fr ont V iew) The PSM slots are numbered 1 through 16 (from left to right) on the bottom of the card cage. Slot 1: • Reserved for common equipment purposes (the IMC card).
2-6 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description Fan Trays The MGX 8240 incorporates three fan trays. Each fan tray: • Is a self-contained card installed from the front of the shelf. • Contains three fans.
2-7 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description Figur e 2-4 Air Flow Power Module The DC input module provides the follo wing features: • Integral On/Of f Switch with Circuit Break er .
2-8 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description PSM Module and Faceplates On the chassis, faceplates on each PSM card provide EMI protection and visual indicators as to the card’ s status.
2-9 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description Figur e 2-5 PSM Modules (Fr ont V iew) LED Indications The LEDs indicate the following : • Critical—On a Critical Event, this LED goes from green to red.
2-10 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description • Redundant Switch Over—applies only to Primary PSM modules. It indicates that the Backup PSM has switched out this primary . T o indicate that the module is switched out, this LED goes from green to yellow .
2-11 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description The PSM I/O module provides e xternal connecti vity (physical termination) on behalf of a PSM module. The PSM I/O module normally connects to the PSM module across the midplane in the same slot position.
2-12 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description • Three DS3 (BNC) connectors for channelized DS3 service interfaces. • T wo OC3 connectors (second connector used for SONET 1+1 APS) for A TM trunk.
2-13 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description Figur e 2-7 IMC Module (F aceplat e and I/O) The IMC I/O card has an RJ45 Connector fo.
2-14 Cisco MGX 8240 Hardware User’s Guide Release 3.0, Part Number 78-10728-01, July 2000 Chapter 2 Description.
An important point after buying a device Cisco Systems MGX 8240 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cisco Systems MGX 8240 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cisco Systems MGX 8240 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cisco Systems MGX 8240 you will learn all the available features of the product, as well as information on its operation. The information that you get Cisco Systems MGX 8240 will certainly help you make a decision on the purchase.
If you already are a holder of Cisco Systems MGX 8240, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cisco Systems MGX 8240.
However, one of the most important roles played by the user manual is to help in solving problems with Cisco Systems MGX 8240. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cisco Systems MGX 8240 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
