System Description

Chapter 7 - Customer Interface Adaptors
MCIL -WIPLL-SDN_R1_40 Marconi Communications Ltd. 7-3 of 7-8
Figure 7-1: Subscriber Data Adapter (SDA)
The SDA includes lightning arrestors to protect the customer's local network from
lightning. The SDA is connected to a standard power outlet (110-240vAC). The
units are generally installed indoors in a communications cabinet or mounted on a