Chapter 1 Introducing the MGX 8230

MGX 8230 System Overview

Each service module slot can accept one single-height card or be converted to accept two double-height cards.

Slots are 1 and 2 are always double-height slots and reserved for the primary and redundant MGX 8230 Processor Switch Modules (PXM1s).

Slots 7 and 14 are reserved for SRM modules only: no other service modules can be used in these two slots.

Eight single-height slots (four double-height slots) are available for service modules.

Figure 1-2is a conceptual drawing of an MGX 8230 showing the dimensions and the slot numbering. The slot numbering is as it appears from the front of the MGX 8230; slots 8 and 9 refer to back card slots only.

Single Height and Double Height Slots

Single-height slots on the MGX 8230 chassis can be converted into double-height slots.

When a double-height front card is plugged in, the left slot number is used. The back cards are numbered according to the front card numbering scheme, with the exception of slots 8 and 9 as noted below.

Since front slots 1 and 2 are always double-height for PXM1 processor modules, slots 8 and 9 only refer to the back card slots that correspond to the two lower single-height slots on the left side of the chassis as seen from the rear.

When converting single-height slots into double-height slots the conversion must start from the bottom and be contiguous. For example, before you can convert slot 4 into double height, slot 3 must be converted first (as shown in Figure 1-3 on page 1-6).

Figure 1-2 MGX 8230 Slot Placement

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

SRM

 

SRM

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

F

SM

 

SM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

5

SM

 

SM

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

7 RU

 

 

T

4

SM

 

SM

(12.25 in.,

 

 

 

 

 

 

 

31.1 cm.)

 

 

R

3

 

SM

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

2

 

PXM 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

PXM 1

 

1 RU

 

 

 

 

 

 

 

 

Optional AC power tray

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1.75 in.,

 

 

 

 

 

 

 

 

4.5 cm.)

 

 

 

 

 

 

 

17.72 in.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(45 cm.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

13

12

11

10

9

8

38375

23.5in.,

(59.7 cm.)

 

 

Cisco MGX 8230 Edge Concentrator Installation and Configuration

 

 

 

 

 

 

 

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

 

 

1-5

 

 

 

 

 

Page 33
Image 33
Cisco Systems MGX 8230 manual Single Height and Double Height Slots, Pxm