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
.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
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
Figure 2-5. Model 3550 DSU DDS (LADS)
Network Connection
December 1996 |