OC3port Plus
Users Manual
4-16
The
INSERT ERRORS
submenu is displayed:
INSERT ERRORS:
- - - - - - - - - - - - - - - - - - - - - - -
Section LOS
OFF
Section LOF OFF
za051f.eps
This menu contains all of the STS-3c or STM-1 errors that you can insert into
the transmit signal. (See Table 4-3 for a complete list and description of these
errors.)
3.
Press the
Down Arrow
key to move to the selection line the error you want to
inject. Then, press the
Left
or
Right Arrow
key to choose the
ON
setting for the
error.
4.
Press
ENTER
. The error you selected is immediately inserted into the overhead
stream.
Table 4-3 lists the types of STS-3c/STM-1 errors that you can insert. Factory
default values are given.
Table 4-3. Description of STS-3c/STM-1 Errors
Errors
Description
Section LOS: OFF
Specifying ON forces the OC3port Plus to transmit a
continuous stream of zeros, effectively causing a Loss of
Signal.
Section LOF: OFF
Specifying ON causes continuous framing error to occur by
inverting on bit of the framing byte information. (Sets A1
Framing byte to 76 instead of F6)
Section BIP8: OFF
Specifying ON inverts the B1 Section parity byte, which
results in the transmission of continuous BIP8 error
indications. Eight BIP8 errors are indicated per frame.
Equipment receiving this signal should indicate 64,000 BIP8
errors every second.
Line BIP24: OFF
Specifying ON inverts the B2 Line parity bytes, which results
in the transmission of continuous BIP24 error indications.
Twenty-four BIP24 errors are indicated per frame. Equipment
receiving this signal should indicate 192,000 BIP24 errors
every second.
Path BIP8: OFF
Specifying ON inverts the B3 Path parity byte which results in
the transmission of continuous BIP8 error indications. Eight
BIP8 errors are indicated per frame. Equipment receiving this
signal should indicate 64,000 BIP8 errors every second.
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