ADTRAN L768 User Manual
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Chapter 3: Terminal Menu Operation and Structure
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Express L768/L1.5 User Manual
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HDSL/NEBEs
Read security: 5
This contains the number of Near-End-Block-Errors (NEBEs) that have been
detected by the Express L768/L1.5’s HDSL circuitry. Continuous errors can
indicate a line problem, but a burst at one time is normal.
HDSL/FEBEs
Read security: 5
This contains the number of Far-End-Block-Errors (FEBEs) that have been de-
tected by the HDSL circuitry on the other end of the link. Continuous errors
can indicate a line problem, but a burst at one time is normal.
WAN/L2 Protocol
Write security: 3, Read security: 5
This parameter specifies the layer 2 data link layer transport used. When se-
lected as PPP (def), the Express L768/L1.5 will negotiate PPP over the HDSL
interface. This would be used mainly for campus wiring applications. Param-
eters for controlling the PPP negotiation are in the Configuration/PPP Profile
menu. Frame Relay should be selected when the Express L768/L1.5 is con-
nected to a Frame Relay switch. The Configuration/WAN/Frame Relay menu
is used for controlling the Frame Relay parameters.