Screen Reference
DS1 Circuit Pack
798
Administrator’s Guide for Avaya Communication Manager
November 2003
Transmit LBO (Transmit Line Build-Out)
This field reduces the outgoing signal strength by a fixed amount. The appropriate level of loss depends
on the distance between your Communication Manager server (measured by cable length from the smart
jack) and the nearest repeater. Where another server/switch is at the end of the circuit, as in campus
environments, use the cable length between the 2 switches to select the appropriate setting from the table
below. This field appears if the
Near-end CSU Type
field is integrated.
Upon DTE LOS
DTE stands for “Data Terminal Equipment.” This field tells Communication Manager what to do if the
outgoing signal from the DS1 circuit pack (the data terminal equipment) to the network is lost.
CPE LOOPBACK JACK OPTIONS
Supply CPE Loopback Jack Power
If a CPE (Customer Premise Equipment) Loopback Jack is installed, the DS1 board should supply power
to the equipment during loopback testing.
Related topics
See
Setting up digital trunks
on page 360 for instructions.
See
DS1 trunk service
on page 1514 for detailed information.
Valid entries
Usage
0db
For distances of 2,001–3,000 feet
-7.5db
For distances of 1,001–2,000
-15db
For distances of 0–1,000 feet
-22.5db
For mid-span repeaters
Valid entries
Usage
loopback Enter
loopback to return the network signal to the network. This
prevents any alarms from being generated at the far-end
ais
Enter ais (Alarm Indicator Signal) to send an unframed all-ones
signal (the AIS or Blue Alarm) to the far-end server/switch. This
option alerts your network service provider to the problem
immediately and aids in troubleshooting.
Valid entries
Usage
y/n
Enter y if a CPE Loopback Jack is installed. If not, you must enter
n.