cc/td/doc/product/wanbu/mgx8260/rel1_2
hometocprevnextglossaryfeedbacksearchhelp
PDF

Table of Contents

Installing the Hardware

Installing the Hardware

This chapter describes how to mount the chassis and install the circuit cards.

Tools Required

Make sure that you have the following standard tools before beginning the installation:

Hardware Required

The Cisco MGX 8260 chassis mounts in a standard 19 inch or 23 inch equipment rack. Before starting the installation procedure, check that you have the necessary hardware components for your system (see following tables). Your system will not use all these components.


Table 2-1: Chassis and System Control Components
Cisco Part Number Description

MGX8260

MGX 8260 chassis and accessory kit

SCC5FC-4FE

SCC—5Gbps Front Card with 4 Fast Ethernet Ports

SCCBC-4FE

SCC—Back Card with NMS Ports and 4 Fast Ethernet Network Interface

SCC5FC-4OC3

SCC—5Gbps Front Card with 4 OC-3 Broadband Ports

OC3MMBC-4

SCC—Back Card with NMS Ports and 4 OC-3 Multimode Optical Ports

OC3SMIBC-4

SCC—Back Card with NMS Ports and 4 OC-3 Single Mode Optical Ports

AC-DC-EXTPSS

MGX8260 Power Supply (Optional)


Table 2-2: Front Circuit Cards
Cisco Part Number Description

BSCFC-6T3

BSC—Front Card for DS3/DS1/DS0 TDM switching of 6 DS3 lines

DMCFC-6T3

DMC—Front Card for DS3/DS1/DS0 TDM distribution of 6 DS3 lines

NSCFC-8DSP

NSC—Front Card for 8 T1/E1 DSP channels

NSCFC-16DSP

NSC—Front Card for 16 T1/E1 DSP channels

NSCFC-16TDM

NCS—Front Card for 16 T1/E1 TDM channels


Table 2-3: Back Circuit Cards
Cisco Part Number Description

T1E1BC-50NR

Non-redundant Back Card for 16 T1/E1 interfaces (50-pin connectors)

T1E1BC-RJ48

Non-redundant Back Card for 16 E1 interfaces (RJ-48 connectors)

T1E1BC-RED

Back Card for 1:N redundant support of DS1 lines

T3E3BC-6DSX

T3-Back Card for 6 (TX and RX) SMB Male DS3 Interfaces

To complete the setup procedure, you also need a VT-100 terminal or a PC running terminal emulation software.

Hardware Component Spacing

The spacing between the Cisco MGX 8260 hardware components is important for several reasons.

Install the plenum over the uppermost MGX 8260 in the rack.

Installing the Chassis

A new chassis is typically loaded with front and back cards. Unless your operating procedures require card removal, leave the cards installed. If you must remove cards, remove the front cards and leave the back cards installed.

To install the Cisco MGX 8260 chassis, follow these steps:

Step 1   Visually inspect the mounting brackets to make sure they fit the rack width you are using. The chassis is shipped with mounting brackets pre installed for a 19" rack.

Step 2   For a 23 inch rack, or for different mounting depths, remove and reinstall the mounting brackets to suit your system. Position the long side of the bracket against the chassis for a 19' rack, or the short side against the chassis for a 23" rack. With either width, you can mount the brackets flush with the front of the unit, or recessed by 5" or 8" (see Figure 2-1).

Caution Do not substitute screws for the mounting brackets. Incorrect crews can damage the chassis or circuit cards.

Figure 2-1: Attaching the Mounting Brackets


Step 3   Using the mounting bracket and twelve screws, mount the Cisco MGX 8260 chassis in the equipment rack (see Figure 2-2).


Figure 2-2: Mounting the Chassis


Step 4   At the rear of the Cisco MGX 8260 chassis, connect a protective grounding wire to the chassis grounding lug (see Figure 2-3). Use a #10 RING LUG for 16-14 AWG wire.


Figure 2-3: Grounding the Chassis


Step 5   Using a socket wrench, tighten the ground terminal nuts.

Step 6   Connect the other end of the ground wire to an "earth" ground near the chassis.

Installing the Exhaust Plenum

The exhaust plenum is an MGX 8260 accessory that assures proper airflow through the chassis when other equipment is mounted above it. Although the plenum primarily controls airflow, it also protects the internal components from falling objects or other physical damage. You install the exhaust plenum over the top-most MGX 8260 in a rack.

To install the exhaust plenum, follow these steps:

Step 1   Attach the mounting brackets to the plenum (see Figure 2-4).


Figure 2-4: Attaching Plenum Brackets


Step 2   Place the plenum over the top MGX 8260 chassis in the rack (see Figure 2-5).


Figure 2-5: Securing the Plenum in the Rack


Step 3   Secure the plenum to the rack using the screws provided.

Installing Front Cards

The Cisco MGX 8260 chassis holds front and back cards. Start installing cards from the front.

Warning Observe standard electrostatic discharge (ESD) precautions before handling, inserting, or removing cards.

To install front cards, follow these steps:

Step 1   Put on an antistatic wriststrap and connect it to the front of the chassis.

Step 2   Locate the correct SCC for your system.

If your system uses redundant controllers, both must be identical.

Warning Handle the cards gently. Bending or forcing the cards can cause permanent damage.

Step 3   From the front of the chassis, install an SCC card in slot 9 or 10 (see Figure 2-6). With the extraction levers straight out, slide the card into the slot until the top and bottom levers engage and roll over the lip of the chassis; then seat the card firmly into the backplane.


Figure 2-6: Inserting the SCC Front-Mounted Cards


Step 4   Secure the card at the top and bottom with the captive mounting screws. Hand tighten the screws only.

Step 5   If your system uses SCC redundancy, install an identical SCC in slot 9 or 10 and secure it.

Step 6   If your system has switched DS3 interfaces, install and secure up to six BSCs in slots 11 through 16.

Step 7   If your system has DS3 lines with M13 mapping, install and secure one or two DMC card. If there is a SCC in slot 9, install a DMC in slot 7; If there is a SCC in slot 10, install a DMC in slot 8.

Note   DMCs only work in slots 7 or 8 and must be paired with SCCs in slots 9 or 10, respectively.

Step 8   If your system has T1or E1 interfaces, install and secure up to six NSCs in slots 1 - 6 or 11-16. For systems without DMC cards, you can install up to two additional NSCs in slots 7 and 8.

Step 9   Remove your wriststrap from the front of the chassis.

Installing Back Cards

To install back cards, follow these steps:

Step 1   Connect your wriststrap to the rear of the chassis.

Step 2   Locate the correct SCC back card for your system.

If your system uses redundant controllers, both back cards must be identical.

Warning Handle the cards gently. Bending or forcing the cards can cause permanent damage.

Step 3   From the rear of the chassis, install an SCC back card behind an SCC front card, in slot 9 or 10 (see Figure 2-7 and Figure 2-8). It's important to properly align the card with the backplane socket, so gently insert the card straight through the guides until it just makes contact with the socket. Then using your thumbs, apply pressure approximately one inch from the top and at the middle of the card until it slides into place.


Figure 2-7: Inserting Fast Ethernet SCC Back-Mounted Cards



Figure 2-8: Inserting OC-3 SCC Back-Mounted Cards


Step 4   Secure the SCC at the top and bottom with the captive mounting screws.

Step 5   If your system uses SCC redundancy, install the second SCC back card in the remaining slot, either 9 or 10.

Step 6   If your system has switched DS3 interfaces, install and secure DS3 back cards behind each BSC front card.

Step 7   If your system has DS3 lines with M13 mapping, install and secure DS3 back cards behind each DMC front card.

Step 8   If your system has T1 or E1 interfaces:

  All NSC back cards must be the same type.

Step 9   Remove your wriststrap from the rear of the chassis.


hometocprevnextglossaryfeedbacksearchhelp
Posted: Mon Oct 2 22:41:41 PDT 2000
Copyright 1989-2000©Cisco Systems Inc.