Chapter 7. Configuring the Network Port
61200275L1-1 TSU IQ+ User Manual 7-3
Clock Source (CLK SOURCE)
Select the clock source to be derived from the network, from the
unit’s internal clock, or from clock recovered from either the DTE
(V.35)orDSX-1 port. 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 FROM NETWORK.
Choices: INTERNAL,FROM NETWORK,BASE DTE,andBASE DSX-1.
Line Buildout (LBO)
Select the line buildout for the network interface. In AUTO mode,
the TSU IQ+ sets the LBO based on the strength of the receive
signal. Options: AUTO,0,7.5,15,and22.5 dB.
Rx Sensitivity (RX GAIN)
Select the desired receiver sensitivity setting. The factory default is
NORMAL, which is adequate for most applications. The extended
setting should be used only in applications where the NORMAL
setting is not sufficient. If the receive signal strength is less than
30 dB, choose EXTENDED.
Channel Bandwidth (CHANNEL RATE)
Set the channel bandwidth for 56 or 64 kbps.
Transmit PRM
Enabling performance report messages (PRM) allows the TSU IQ+
to send messages across the facility data link (FDL) per ANSI
T1.403. The terminating device at the telco may use this
information for management of the T1 loop.
The TSU IQ+ supports PRM messages per AT&T Pub 54016 which
is a poll/response type protocol. Because of this poll/response
nature, the transmit PRM option does not disable the TSU IQ+ from
processing or responding to 54016-type messages.
Choices: YES or NO.