User manual

Chapter 5. Configuration Menu
5-8 TDU 120e User Manual 61202156L1-1
Inband Loopback
Sets unit to accept or reject the network interface loop-up and
loop-down codes as defined in ANSI T1.403.
Choices: Accept or Reject.
Bit Stuffing
When enabled, bit stuffing causes the TDU 120e to monitor
for ones (1s) density violations and insert a one (1) when
needed to maintain 1s at 12.5%.
Choices: Enable or Disable.
Unit Menu
The U
NIT
menu changes the baud rate of the Control In port
and the setup of the Dial Out port.
The menu items are:
Control Port Rate
Sets the baud rate for communication with the PC or modem.
Choices: 1200, 2400, 9600, 19200, and 38400 kbps.
Traps
Enables or disables the transmission of trap messages.
Choices: Enable and Disable
Access
Sets the method of connection from the TDU 120e to T-Watch
or SNMP.
Choices:
Direct - Used if connected directly to the PC.
Dial - Used when connection is through a modem. The dial
string is entered from T-Watch or SNMP.
In order to activate the -36 dB receiver sensitivity, the LBO
should be set to AUTO. This feature is useful in a point-to-point
application where no network elements are involved. If a network
element such as a Smart Jack is installed on the circuit, the LBO
should be set to 0 dB.