Chapter 6. DTE Port Configuration

None

No flow control is used and the IQ Probe drops frames during severe congestion while in DBU operation.

Hardware

The IQ Probe varies the DTE TC clock as necessary to relieve congestion during DBU operation.

FECN/BECN

While in a congested state during DBU operation, frames across the DBU PVCs have FECN or BECN set depending on the direction. Frames outbound to the network have FECN set, while frames inbound to the attached DTE device have BECN set. This method is useful if the attached DTE devices can respond to congestion notification.

CTS Option

Set the CTS lead to FORCED ON or FOLLOW RTS.

Forced On

The CTS lead is always on and the RTS lead is ignored.

Follow RTS

The CTS lead is on when the RTS lead is on (and off when the RTS lead is off).

DSR Option

Set the DSR lead to FORCED ON or NORMAL.

Forced On

The DSR lead is always on.

Normal

The DSR lead is off when the IQ Probe does not receive DSR from the DSU/CSU on the DCE port.

CD Option

Set the CD lead to FORCED ON or NORMAL.

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ADTRAN 1200214L1, 1204002L1, 1204006L1 None, Hardware, CTS Option, Forced On, Follow RTS, DSR Option, Normal, CD Option

1204002L1, 1200214L1, 1204006L1 specifications

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