The 1655 AMU serves traditional SDH (circuit-based), and Ethernet (packet-based), applications. As shown in Figure 1, it can be deployed with the Alcatel-Lucent 1645 AMC and 1643 AMS for cost-effective ag- gregation to STM-1/4 rings and with higher capacity Alcatel-Lucent plat- forms for aggregation to higher speed networks. In either case, the network is managed by the Alcatel-Lucent 1350 Optical Management System (OMS).
Figure 1. 1655 AMU in a network
|  |   | 10/100/1000 |   | STM-16 | SDH | 
|  | 10/100/1000 | E1, E3, DS3 | (STM-16/64) | 
|  | Ethernet |   | 
|  | Ethernet |   |   |   | 1850 TSS | 
|  |   |   |   |   | 16XX OMSN | 
STM-16




 E1, E3, DS3
E1, E3, DS3
| 10/100/1000 | E1, E3, DS3, |   |   | 
| Ethernet | E1, E3, DS3, | STM-4 | 
|   | STM-1 | 
|   |   | STM-1 |   | 
| E1, E3, DS3, | 10/100/1000 | 
| STM-1 | Ethernet | 
10/100/1000 Ethernet
1643 AMS 1645 AMC 1655 AMU ATM PABX Router switch
Alcatel-Lucent 1655 AMU Access Multiplexer Universal 7