Table 2 7750 Sr-A4 Chassis Front View Features; 7750 Sr-A4 And 7750 Sr-A8 Overview; Figure 1 7750 Sr-A4 Chassis Front View - Alcatel-Lucent 7750 SR-a4 Installation Manual

7750 SR-a4 and SR-a8 Installation Guide
The CPM-a, IOM-a, and MDA-a cards, and the PSUs and fan tray must be installed after the
chassis is mounted in the rack and grounded. All physical connections are made from the
front of the chassis, including the chassis ground point. There are no connectors on the back
of the chassis.
1
7750 SR-a4 Fan Tray
2
Pwr
Stat
Slot Layout
1/1 XP 1/2 XP
1/3 1/4
1
CPM A CPM B
3
5
7750 SR-a4
Service Router
Table 2: 7750 SR-a4 Chassis Front View Features
Key Description
1 7750 SR-a4 fan tray in vertical slot
2 One IOM-a in chassis slot three
3 Chassis ground position on the chassis mounting flange
4 Up to four PSUs in the bottom chassis slot
5 ESD strap receptacle
6
Up to four MDA-a or MDA-aXP cards in the top two chassis slots
7 Up to two CPM-a cards in chassis slot four
8 Non-removable chassis filler plate
9 Air filter in vertical slot
1. See 7750 SR-a4 Chassis Slot Allocation

7750 SR-a4 and 7750 SR-a8 Overview

Figure 1: 7750 SR-a4 Chassis Front View
Pwr
Stat
Lnk Act
Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Pwr
Stat
Pwr
Stat
Lnk Act Lnk Act
Critical Major Minor
DTE DCE
Alarms
1PPS
Pwr
Stat
ACO/LT Compact Flash
Console
Pwr
Stat
_
+ +
for more information about MDA-a and MDA-aXP slots.
1 2 3 4 5 6 7 8
Pwr
Stat
Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act Lnk Act
Pwr
Stat
Lnk/Act
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Lnk Lnk Act Lnk Act Lnk Act Act
Critical Critical Major Major Minor Minor
DTE DTE DCE DCE
1PPS
Alarms Alarms
1PPS Compact Flash
ACO
Pwr Pwr
Stat Stat
ACO/LT LT Compact Flash
Console Console
Pwr
Stat
_
9 10
Lnk Act Lnk Act
6
41 42 43 44
9
7
8
4
24537
1
25