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)
