Alcatel-Lucent 7705 SAR-A, Installation Manual

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7705 SAR-A Components
42 7705 SAR-A Chassis Installation Guide
T1/E1 and Ethernet Ports
One variant of the 7705 SAR-A chassis is equipped with T1/E1 ports; both variants of the
chassis are equipped with Ethernet ports.
Figure 10 identifies the T1/E1 and Ethernet
interface ports. These ports provide access for a wide variety of interface speeds and types,
including T1/E1 with TDM-based services (SAToP, CESoPSN, and CESoETH), PPP/
MLPPP in access or network mode, and Ethernet (1000Base-T, 100Base-T, 10Base-T, and
optical).
The eight T1/E1 ports use RJ-45 connectors. All eight ports must be configured as either T1
or E1; a mix of T1 and E1 ports is not supported. The T1/E1 ports are on-premises,
intra-building SELV ports and require a CSU for off-premises connections. An adapter cable
is available that converts RJ-45 connectors to BNC connectors for E1 ports. These ports must
be configured for 75
Ω
impedance.
Of the 12 Ethernet ports, ports 1 to 4 are exclusive-OR (XOR) ports that can be configured
as either 10/100/1000 Base-T electrical RJ-45 ports (ports 1A to 4A) or as 100/1000 SFP
ports (ports 1B to 4B). The interface type can be configured on each port independently; the
default is RJ-45. Ports 5 to 8 are also Gigabit Ethernet ports and use 100/1000 SFPs. The SFPs
are hot-swappable and field-replaceable by qualified personnel. Ports 9 to 12 are Fast
Ethernet ports and use an RJ-45 connector.
When making connections to the T1/E1 ports, CAT5e shielded cables must be used to
maintain EMC compliance. When making connections to the Ethernet ports, CAT5 shielded
cable must be used for Fast Ethernet ports and CAT5e shielded cable must be used for Gigabit
Ethernet ports.
Figure 10: T1/E1 and Ethernet Ports
Power Supply Inputs
The 7705 SAR-A supports a –48/–60 VDC power supply through a wire-to-board, modular
pluggable terminal block (with four terminals) attached to the front of the chassis. The
terminals provide access for two independent power feeds, allowing power redundancy for
the system.
7705 SAR-A
Mgmt
ToD Out
Lnk Act
Sync
In
+Batt A -Batt A +Batt B -Batt B
Console
8 12 11 10 9 7 6 5 4B 3B 2B 1B 1A
Status
2A 3A 4A
Act Lnk Act Lnk Act Lnk Act Lnk
Stat Stat Stat Stat
2 4 6 8
1 3 5 7
Lnk Act Lnk Act Lnk Act Lnk Act
Stat Stat Stat Stat
T1/E1 Ethernet
-48 VDC
23312
T1/E1 ports Ethernet ports