Installing the Model 3550 DSU

Tributary DSU Addressing

Tributary DSU addresses are user-definable, but take care that their addresses are unique on a multipoint circuit. If two tributaries are assigned the same address, you will not be able to communicate with either one.

The control DSU accesses its tributary by specifying the tributary's address.

The 6700 Series NMS accesses the DSU via its network address. To access a tributary DSU, the NMS

first addresses the control, then the tributary. An address issued from the NMS takes the format of control channel/control network address/tributary network address. This is called link-level network addressing.

Figure 2-6 shows an example of DSU and DBM addressing, as well as link-level network addressing.

Refer to Chapter 4 to learn how to set the DSU's network address.

Figure 2-6. Addressing Example

3550-A2-GB20-20

December 1996

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Paradyne 3551 manual Tributary DSU Addressing, Addressing Example