7705 SAR-8 Overview
Page 44 7705 SAR-8 Installation Guide
7705 SAR-8 Components
The main components of the 7705 Service Aggregation Router (SAR) are the chassis,
Control and Switching Module (CSM), adapter cards, and Fan module. In addition, there are
optional distribution panels to connect the adapter cards to the customer equipment.
Figure 4 shows the front view of the 7705 SAR-8. There are eight horizontal slots for the
CSMs and adapter cards, and one vertical slot for the Fan module. The connectors for the
DC power feeds are located to the right of the Fan module and are factory-installed. The
CSM, adapter cards, and Fan module are installed by the customer. All physical connections
are made from the front of the unit, including the chassis ground point. There are no back
panel connections.
Chassis
The chassis is shipped with a backplane, card cage, and connectors for the DC power feeds.
Mounting brackets for the 7705 SAR-8 chassis are factory-installed so the unit can be
mounted in a recommended 19-inch wide rack. The chassis grounding stud is on the right-
hand side bracket. Filler plates are also factory-installed.
Figure 4: 7705 SAR-8 Front View
Minor
Major
Critical
Batt B
Batt A
Fan
Alarm
External
Alarms
ACO/LT
FAN
7705 SAR-8
Stat
CSM
A8-ETN
A16-CHDS1
A16-CHDS1
Pwr
Act
Stat
Pwr
Act
Ports 1-16
Ports 1-16
Port
Stat
Pwr
Stat
Link 1 Act
Link 2 Act
Link 3 A
ct
Link 4 A
ctLink 5
Act
Link 6 A
ct
7
Link
Act
Link
Act
8
Pwr
Act
Port
Mgmnt Port
Console
In
Sync
Out
Stat
CSM
A8-ETN
A16-CHDS1
Pwr
Act
Stat
Pwr
Act
Ports 1-16
Port
Stat
Link 1 A
ct
Link 2
Act
Link 3
Act
Link 4
Act
Link 5
Act
Link 6
Act
7
Link
Act
Link
Act
Pwr
Mgmnt Port
Console
In
Sync
Out
CSM A
SLOT ID
MDA 1
MDA 3
MDA 5
CSM B
MDA 2
MDA 4
MDA 6
19634
Batt. A
-
+
-
+
Batt. B
Note: The 7705 SAR-F and the 7705 SAR-8 are products in the SAR product line. The main
difference between these products is their hardware configuration. The 7705 SAR-F has a
fixed, single circuit board configuration while the 7705 SAR-8 is an 8-slot modular
configuration. Refer to
Notes on 7705 SAR-8 and 7705 SAR-F on page 59 for more
information.
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