Telenetics Corporation FT100 S, Installation And Operation Manual

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Control Port Operation
6-22 FT 100S
Line Code Violation Second (LCVS)is any second with one or more
bipolar violations. If B8ZS coding is selected, only bipolar violations
which are not part of the B8ZS code are counted.
% Error Free Seconds is defined as {(# of error free seconds) / (# of total
seconds) X 100}. The # of total seconds is counted from the last error
history reset to a maximum of 24 hours.
Error Reporting Menus
The performance menus allow the user to select error history display
options. Error data for the preceding 24 hours is accumulated in 15
minute intervals and stored in error history registers (nonvolatile
memory). Two sets of error history registers are maintained by the unit.
ESF Per AT&T Pub 54016
When selected for AT&T 54016 ESF mode, the two error history regis-
ters maintained by the unit are the following:
Carrier Error History Registers are reserved for use by the carrier or
remote T1 interface. The Carrier (or far end T1 terminating equipment)
can read these registers over the ESF Data Link (FDL) using the TABS
protocol defined by AT&T 54016. The local user can obtain a display of
the carrier's error history registers but cannot reset them.
User Error History Registers are for use by the local user. These regis-
ters can be displayed and reset if preferred by the local user.
ESF Per ANSI T1.403
When selected for ANSI T1.403 ESF mode, the two error history regis-
ters are the following:
Local Error History Registers contains error data pertaining to the
locally received signal from the network.
Carrier Error History Register contains error data pertaining to the
remotely received signal. This error data is the accumulation of received
Performance Report Messages (PRMs) received by the CSU from the
network and is a measure of the error performance of the T1 line as
observed by the T1 network receive equipment. The PRM protocol is
described in ANSI Standard T1.403.