Paradyne 3551 manual Power-Up Routine, Connecting to Dial or Pstn Network

COMSPHERE 3550 Series Data Service Units

Power-Up Routine

When power is applied, the DSU:

•Determines what options (DBM or TDM/Flex) are installed, if any.

•Runs a Device Test on itself and each of the installed options.

During the tests, all indicators on the DCP light briefly and the message Power-Up Tests appears on the liquid crystal display (LCD).

•Displays the results of each test momentarily as Pass, Fail, or Abrt. (Abrt indicates that the Device Test was aborted because a network loopback was in progress during the power-up procedure.) These tests take about 20 seconds to complete.

If a TDM/Flex is installed, MUX is displayed as Pass or Fail.

If the DSU or DBM fails this test, follow the procedure below. Refer to Appendix A as you perform the procedures described in this guide. Refer to Chapters 4 and 5 for additional examples and procedures.

.Procedure

1.Press the key to return to the top-level menu.

2.Select Local (F1 key).

3.Press the key to scroll the Confg (Configuration) branch into view.

4.Press the function key directly below Confg.

5.Press the F1 key to select Opts (Configuration Options).

The Load from screen appears.

6.Press the key to bring the factory-loaded unit configurations into view, and select the appropriate configuration.

•PTPC for a point-to-point control

•PTPT for a point-to-point tributary

•MPTC for a multipoint control

•MPTT for a multipoint tributary

7.Press the F1 key to SAVE the selected configuration.

The Save to screen appears.

8.Save the selected configuration to Activ (F1 key).

9.Press the key to return to the top-level menu, then select Local again.

10.Select the Test branch (F3). The Run Test on screen appears.

11.Select the device that Failed: the DSU (or the TDM/Flex) or DBM.

12.Press the F2 key to run the Device Test again. The device should pass.

13.Should the device fail, contact your service representative (see Chapter 1).

Connecting to the Network

Network connections are provided through the 3000 Series Carrier. Refer to Figure 3-2 as you read the following sections and set up your network connections.

Connecting to the NMS

A Model 3551 DSU is set up for network diagnostic connection through the shared diagnostic unit (SDU), which is installed in Slot 0 of the carrier. Refer to the COMSPHERE 3000 Series Carrier, Installation Manual to set up the network diagnostic connection.

For connection of the DSU, see Appendix E of this guide. For pin assignments, see Appendix D.

Connecting to the

Dial (or PSTN) Network

Connection to the dial network (or public switched telephone network ± PSTN) for the carrier-mounted Model 3551 DSU is through a network interface module (NIM) that is installed onto the carrier's backplane (see Figure 3-2). Refer to the COMSPHERE 3000 Series Carrier, Installation Manual for additional information or to install the NIM.

3-8 December 1996 3550-A2-GB20-20