Alcatel-Lucent 1511 BA - Manual (Page 4)

Automatic Protection Switch
The automatic protection switch (APS)
enables route protection on E1 level.
If used, the Alcatel-Lucent 1511 BA
transmits data via two different E1
routes. At the receive side, data coming
from the preferred route is used; if this
route fails, data is taken from the
other side.
Ethernet Switching
On an E1 trail across multiple Alcatel-
Lucent 1511 BA multiplexers, a group
of 64-kb timeslots (N: 1...31) is reserved
to carry Ethernet frames. In each Alcatel-
Lucent 1511 BA, one 10/100Base-T LAN
board (LANtrib) can drop/insert its local
Ethernet traffic onto these reserved
timeslots. To connect multiple Ethernet-
based end devices, the LANtrib offers
five external RJ-45 interfaces. The
LANtrib also switches LANs across mul-
tiple and distinct Alcatel-Lucent 1511
BA multiplexers. Switching between
the local five Ethernet ports runs at
wire speed.
Technical Specifications
Main Characteristics
• Compliant with all relevant ITU-T
recommendations including:
G.703, G.704, G.706, G.711, G.712,
G.732, G.784, G.823, G.826, V.28,
V.35, V.36, and X.21
Clock Synchronization
• Internal clock (50 ppm)
• Extracted from E1 port
• External via 2,048 MHz clock
(ITU-T G.703 § 10) or 64 kHz
(G.703 § 1.2.2)
Clock and backup priority rules
are selectable via configuration
management.
Mechanical Design
• Uses same technology as the other
products in the Alcatel-Lucent
access product family
• Plug-in printed boards with Double
Euro format. State-of-the-art
components ensure low power
consumption and high reliability.
• Subracks (can be mounted in rack
or cabinet):
¬ T9 subrack: Width of 120 mm
(4.72 in.), 240 mm (9.45 in.),
360 mm (14.17 in.) or 480 mm
(18.89 in.)
¬ 19-in. subrack:
- height: 7U (1U = 44.45 mm,
1.75 in.)
- Can be mounted in a 300-mm
deep (11.81 in.) ETSI rack
• ETSI T9 and 19-in. racks:
¬ available in two heights:
2,200 mm (86.61 in.) (with six
Alcatel-Lucent 1511 BA subrack
mounting levels) and 1,800 mm
(70.87 in.) (with five mounting
levels)
• Cabinets: Both indoor and outdoor
variants available
Power Supply
• -38.5 V to -72 V DC
• 110/220 V AC ± 20%
Environment
> Operating temperature: -5 C to
+50 C (23 F to 122 F)
> Transport and storage temperature:
-40 C to +70 C (-40 F to +158 F)
• Compliant with:
¬ ETS 300 019-2-1
¬ ETS 300 019-2-2
¬ ETS 300 019-2-3
EMC
• EMC on rack basis (EMC directive
89/336/EEG [EN 50081-1, EN
50082-1])
• EMC on subrack basis
(ETS 300-386-1)
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