Troubleshooting New Installs; Table 11-2. Troubleshooting New Installs - ADTRAN DSU III ARdc User Manual

Troubleshooting New Installs

Before initiating diagnostics on a newly installed unit and/or DDS circuit
and before contacting ADTRAN Technical Support, please check the
items in Table 11-2 to ensure the unit is configured properly.
Configuration Item
to Check
DTE Type
Loop Rate
Data Format
DTE Cable
Telco Cable
Power the unit Off and
then On.
After verifying the items listed in Table 11-2, the unit should operate
properly and display the following:
If a status message other than DATA MODE LOOP IS NORMAL is
shown, begin performing diagnostics described in the following section.
61200270L1-1

Table 11-2. Troubleshooting New Installs

Option Selection
EIA-232 or V.35
Auto, 2.4 to 64 kbps From the CONFIG menu, select the
Async or Sync
N/A
N/A
N/A
DATA MODE
LOOP IS NORMAL
DSU III ARdc User Manual
Chapter 11. Testing and Troubleshooting
Action
From the CONFIG menu, select the
type of DTE interface option to con-
nect to the DSU/CSU.
DDS loop rate of the DDS circuit.
From the CONFIG menu, select the
type of data to be used.
Verify DTE cable connection to the
proper DTE connector on the DSU/
CSU.
Verify the telco cable is securely con-
nected to the DSU/CSU and wall
jack.
Verify the unit passes self test during
power-up (displayed on the LCD).
11-7