ADTRAN 1200270L1, Manual

Page: 103 / 132

Chapter 12. Status Selection
61200270L1-20 DSU III ARdc User Manual 12-3
DDS Network Status
This line of the display shows the current status of the dedicated network
interface. Possible messages include:
LOOP IS NORMAL
The DSU is connected to the dedicated line. No line irregularity detected.
OPEN LOOP
The DDS physical connection has been broken.
NO RX SIGNAL
The DSU III ARdc detects sealing current but no receive signal.
CHECK TELCO LINE
The DSU III ARdc detects a possible reversal in the Rx and Tx pairs.
OOS/OOF FROM NET
The DSU III ARdc detects an abnormal condition code from the network.
NO FRAME SYNC
The DSU III ARdc cannot sync on the signal from the telco (64k mode
only).
TEST FROM TELCO
The DSU III ARdc is in a test initiated from the telco. Scroll to next status
menu for test type.
RATE ADAPTING
The DSU III ARdc is attempting to determine the loop rate provided from
the telco.