Alcatel-Lucent 7705 SAR-A, Installation Manual

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7705 SAR-A Overview
7705 SAR-A Chassis Installation Guide 39
7705 SAR-A Components
Chassis
The 7705 SAR-A has one circuit board that supports all functions of the router, including
control and switching, Ethernet interfaces, T1/E1 interfaces (on the variant equipped with
those ports), consolidated power and alarm status LEDs, and connectors for node
management and external synchronization. In addition to the circuit board, the chassis has a
four-position, single terminal block for redundant DC power inputs. The physical
connections are made at the front of the chassis, including the chassis ground connection.
There are no back panel connections.
The 7705 SAR-A is a passively cooled chassis that does not use internal fans for forced air
cooling; the chassis housing incorporates a built-in heat sink that provides the passive
cooling.
Mounting brackets for the 7705 SAR-A chassis are factory-installed and are used to mount
the unit in a standard 19-inch rack. The protective earth connection is provided via the chassis
grounding stud on the right-hand side mounting bracket.
The 7705 SAR-A chassis can also be mounted vertically.
The following figures show the 7705 SAR-A chassis.
• Figure 6 shows an exploded view of the 7705 SAR-A chassis.
• Figure 7 shows a closeup view of the faceplate of the 7705 SAR-A chassis variant
with T1/E1 ports.
• Figure 8 shows a closeup view of the faceplate of the 7705 SAR-A chassis variant
with no T1/E1 ports.