Proxima ASA 7910, 7911 manual Domain Switch, Rotary Switches, The Pairing Domain

Domain Switch Station/Master Switch

Figure 7

Rotary Switches

The Pairing Domain

There is an additional feature associated with Domain 8 on the Domain Switch called the Pairing Domain. When the Pairing Domain is not used, two Serial Adapters will each send out a series of handshaking messages and exchange IP addresses to enable communication during boot-up. This information is lost each time the Serial Adapter is powered off; therefore, the Serial Adapter performs this handshaking procedure each time the unit is reset.

However, the Pairing Domain feature stores the communication information permanently within the unit so that it is not lost

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