Installing the Model 3550 DSU

Connecting to the DDS (or LADS) Network

NOTE

Before connecting the DSU to the DDS network, ensure that approved primary protectors have been installed on the circuit in accordance with Article 800 of the National Electric Code, NFPA 70, in the United States and Section 60 of the Canadian Electric Code, Part 1, in Canada.

Refer to Figure 2-5 as you follow these steps.

.Procedure

1.Plug the DDS network interface cable into the DSU jack labeled LINE.

U.S. ± select either end of the cable

Canada ± select the 8-pin end

2.Plug the other end of the cable into the modular jack (USOC RJ48S) provided by the circuit provider.

If the remote DSU is also connected to the network, the DSU's green OK indicator lights and the Alrm indicator goes off. The Health and Status screen no longer displays a No Signal message.

If connecting the DSU to a LADS network, there are distance limitations that govern the use of DSUs on the network. Table 2-2 summarizes these limitations.

Figure 2-5. Model 3550 DSU DDS (LADS)

Network Connection

3550-A2-GB20-20

December 1996

2-7

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Paradyne 3551 manual Connecting to the DDS or Lads Network, Model 3550 DSU DDS Lads Network Connection