VeEX MPA User Manual page 293

MPA_e_manual_D07-00-129P_RevA00
Protocol Tabs
Ms between Bursts
INC Pointer / DEC
Pointer (action
buttons)
Stop Sequence
(action button)
APS
Transmit APS
This is an Automatic Protection Switching (APS) function used to configure transmit
APS activity. APS is a feature that allows the LTE to switch to a backup line in case of
errors or failures on the main line. APS commands can be configured for either Linear-
or Ring-based networks and are transmitted using bytes K1 and K2 of the Line
overhead.
You can test the network's APS response by generating a condition that is likely to
cause APS switching. You also have the capability to generate specific APS messages
and monitor the response.
The following options are available on the APS screen:
•
New Item - Opens the Apply Maintenance to Entry window, from which you
configure K1 and K2 bytes.
•
Start - Begins transmission of the K1 and K2 byte configuration.
•
Clear - Clears the table.
The following Apply Maintenance to Entry window APS Transmit functions are available:
APS Mode - Linear
This function configures the system to transmit APS functions for a Linear (span)
network.
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from 1 to 8.
Allows the user to set the number of Milliseconds between
bursts. Valid values are 5.5 to 35000 milliseconds.
When a Single pointer action is selected, these will performs
a single pointer Increment or Decrement.
When a Continuous pointer action is selected, these will
begin the pointer Increment or Decrement Sequence.
This button becomes available when a Continuous pointer
sequence is running, this button will stop the pointer action
sequence.