User manual

Chapter 5. Configuration Menu
61202156L1-1 TDU 120e User Manual 5-3
NETWORK (NI)
This menu item accesses the configuration of parameters
associated with the network interface in the base unit. There
are eight submenu items that include setting the format, the
line build out (LBO), and the timing mode. Submenu items
do not include setting the parameters which may be
necessary for a secondary interface (DS-1 Passthrough, etc.).
Network (NI) Menu Items
FORMAT
Sets the frame format for the NI.
Choices: D4 and ESF.
CODE
Sets the line code for the NI.
Choices: AMI and B8ZS.
YELLOW ALARM
Enables and disables the transmitting of yellow alarms.
Choices: ENABLED and DISABLED.
TRANSMIT PRMS
Enables and disables the sending of PRM data on the facility
data link (FDL). The PRM data continues to be collected even
if Transmit PRMS are disabled (possible only with ESF For-
mat).
Choices: Off and On.
TIMING MODE
Selects the clock source for transmission toward the network
from the NI. See TDU 120e Clock Sources on page 5-4 for a
description of the timing choices.
Choices: Network, Base DTE, Base DS-1, Normal (CSU), U-
BR1TE, Internal, and Secondary (SI).
D4 is equivalent to superframe format (SF).