Physical Layer Options; Line Code; Clock Source; Line Buildout - ADTRAN TSU IQ+ User Manual

Physical Layer Options

The following sections describe the P
available for the PRI DBU card.

Line Code

Set the line coding of the PRI DBU card to B8ZS for PRI
applications.

Clock Source

Set the clock source to be derived from the network or from the
unit's internal clock. The selected clocking option designates the
clock source for transmission. Clocking necessary for receiving data
is recovered from incoming data. This option is most commonly set
to N

Line Buildout

Select the output level (in dB) for the PRI DBU card interface.
Choices: A

Rx Gain

Select the desired receiver sensitivity setting. The factory default
setting is N
E
N
than 30 dB, choose E

Start Channel

Select the channel in which the T1 stream starts. The setting must
be consistent with the carrier if using a public network.

Number of Channels

Select the number of DS0s (channels) that are to be used. Note that
the PRI card uses one DS0 per connected call.

Tx Yellow Alarm

Set TX Y
alarm is detected. Set this entry to N
alarms upon red alarm detection.
61200275L1-1
.
ETWORK
, 0, 7.5, 15.0, and 22.5 dB.
UTO
, which is adequate for most applications. The
ORMAL
setting should be used only in applications where the
XTENDED
setting is not sufficient. If the receive signal strength is less
ORMAL
XTENDED
A to Y
EL LARM
TSU IQ+ User Manual
Chapter 8. Configuring DBU Options
HYSICAL
.
to transmit yellow alarms when a red
ES
to avoid transmitting yellow
O
L O
AYER PTIONS
8-9