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Installing the Model 3615 DualFlow DSU
2-53615-A2-GB20-20 December 1996
Power-Up Routine
When power is applied, the DSU:
•
Runs a Device T
est on itself and the DBM.
During the tests, all indicators on the DCP light
briefly and the message
Power-Up T
ests
appears
on the liquid crystal display (LCD).
•
Displays the results of each test momentarily as
Pass, Fail, or Abrt. (
Abrt indicates that the Device
T
est was aborted because a network loopback was
in progress during the power-up procedure.) These
tests take about 20 seconds to complete.
If the DSU or DBM fails this test, follow these steps.
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 fr
om
screen appears.
6.
Press the
key to bring the factory-loaded unit
configurations into view
, and select the
appropriate configuration.
• SyBC (Synchronous Backup for a Control
DSU) for a control when the router controls
backup.
• SyBT (Synchronous Backup for a Tributary
DSU) for a tributary when the router controls
backup.
• DiDg (Dial Diagnostics) for asynchronous
router-management data to be sent over the
EIA-232 port via the DBM connection and user
data over the V.35 port via the DDS
connection.
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
Test (F3).
The Run T
est on
screen appears.
11.
Select the device that Failed: the DSU or DBM.
12. Press the F2 key to run the Device T
est again.
The device should pass.
13. Should the device fail, contact your service
representative (see
Equipment W
arranty and
Support section in Chapter 1).
Connecting to the Network
The DSU provides three interfaces (often called jacks).
One jack connects the DSU to the 6700 or 6800 Series
NMS, one connects the DSU to the dial (or public
switched telephone network – PSTN) network, and one
connects the DSU to the DDS network. Follow the
appropriate procedure when making your network
connections.