ADTRAN T1-FT1 - Manual (Page 52)

Chapter 3. Operation
3-16 TSU User Manual 61200060L1-1
XMIT PRM
Enables and disables the transmitting of Performance Report
Messages (PRM) data on the Facility Data Link (FDL). The
PRM data continues to be collected even if XMIT PRM is
disabled. (Possible only with ESF Format.)
Choices: ENA, DISA
CLOCK SOURCE
Selects the clock source for transmission toward the network
form the NI.
Choices: NETWORK, DTE, INTERNAL
BIT STUFFING
When enabled, Bit Stuffing causes the TSU to monitor for
ones (1s) density violations and insert a one (1) when needed
to maintain ones at 12.5%.
This option should be disabled if B8ZS is enabled, if Nx56 is
selected or alternate channels are being used. All of these
other options already ensure pulse density requirements.
Choices: ENA, DISA
SET LBO
Selects the Line Build Out for the network interface. In AUTO
mode, the TSU will set the LBO based on the strength of the
receive signal.
Choices: 0db, -7.5db, -15db, -22.4db, AUTO