If the maximum load capacity of the network has been reached, and you still want to add more units, or if the distance is longer than the maximum recommended distance, you need to use a repeater. Westermo's repeaters amplify and retransmit the original signal. In this way, the network can be extended and reinforced by adding new segments with full signal strength. A signal can pass through up to a maximum of 8 repeaters (RA-/RD48) and retain its original quality and performance. For RS-422 and RS-485, a maximum of 1 200 metres and 32 nodes are allowed. With a repeater, it is possible to add a new segment of 1 200 m and 31 nodes. With an LA-01 line sharing modem and a 10 mA current loop, your modems can be connected at 18 km intervals.