User's Manual

Table Of Contents
52 LEDR Series I/O Guide MDS 05-3627A01, Rev. D
connected at some point to a radio’s Ethernet port, or to a common hub
with a LEDR radio. In other words, the radio network can be configured
for seamless integration of other IP-manageable devices by responding
to ARP requests and/forwarding IP traffic directed to those devices.
See the
route command on Page 77 for information on other necessary
configuration steps to allow for IP connectivity to LEDR radios and
associated devices using the radio’s network-management channel.
ber Bit-Error Rate of the RF Link
Usage:
ber
This command displays pre-FEC and post-FEC Bit-Error Rate (BER)
between the LEDR radios in the first link.
NOTE: The BER measurement limit is 1E-8. For more reliable infor-
mation on the link-error rate, use the g821 demod command.
bert Bit-Error Rate Test of Data Interface
Usage:
bert [linelist] [-e [pattern] | -d | -i [error] | -lp | -le | stats]
bert
is used for diagnostic purposes by causing the selected line of the
FT1/E1 interface port lines to output a user-selectable pseudo-random
bit sequence, either framed or unframed. This command also allows the
user to measure the bit error rate, number of errors, etc. This command
tests all T1/E1 timeslots without regard to the timeslot command’s con-
figuration.
linelist—List of local line interfaces. Can be single line number or line-
name (see
linename command), comma-separated list of line numbers or
linenames, a range of line numbers (for example: 1-4), or if
linelist is not
given, all lines will be tested.
NOTE: The hyphen is part of the argument string and must be included
for the command to function.
Subcommands:
Control—
-e Enable bert generation/monitoring for line(s)
Can be immediately followed by the test pattern index value
(See
-lp below). If none is included in the command, the
last-used pattern will be implemented.
-d Disable bert generation/monitoring for line(s)
-i Inject error. Index specifying type of error to inject. If no error
is specified, last error selected is used.
E1
FT1
FE1