29
Selecting Test Features
Using Transmit Overhead Setup
the APS Messages setup.
3 If TOH (Transport Overhead) is chosen, choose the format to be
displayed from the STS-1# field.
If STS-1#1,2,3 is chosen, the hexadecimal value of all 81 bytes of the
STS-1 transport overhead selected are displayed
The values of the bytes can be set using
.
If BYTE NAMES is chosen, the labels for the STS-1#1,2,3 overhead
bytes are displayed.
4 If POH (Path Overhead) is chosen, choose the TYPE of overhead
within the STS-1 under test to be setup.
J1 and J2 bytes can be set under Path Overhead or Trace Messages.
H4 byte has a choice of sequences for VT-6, VT-2 and VT-1.5
(OptionOption 110) mapping:
Full Sequence - 48 byte binary sequence.
Reduced Sequence - Binary count sequence of 0 to 3 i.e. 111111(00
to 11).
COC1 Sequence - Binary count sequence of 0 to 3 i.e. 110000(00 to
11).
H4 byte is transmitted as all zeros for 34Mb/s and DS3 (Option 110).
NOTE Any bit of an overhead byte which is displayed as x or s cannot be set at
any time. All other bits can be set to 0 or 1.
TIP: You can set all overhead bytes to the default state by selecting SETUP
.
You can set all overhead bytes and test functions to the default state by
recalling Stored Settings [0] on the display.
DECREASE DIGIT
INCREASE DIGIT
DEFAULT
OTHER
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
Need help?
General
