Verilink M1-3 (880-503136-001) Product Manual - Manual (Page 37)

M1-3 Configuration Options
Verilink M1-3 User Manual 3-7
Table 3-4 Timing Menu Options
Menu
Option Description Instructions
PC Primary Clock—The slot number of the application module that is
the primary clock source for this shelf. This module provides the
clock signal used to drive the transmit clock circuitry for all
modules in the shelf that use T1 rate clocks.
At the prompt, type the slot
number of the module
selected as the primary clock
source.
PS Primary Synchronization—Sets the timing source for the module
selected as the shelf timing master. Options:
• Network—receives clock from the network.
• Internal—generates clock with it own circuitry.
• External—receives clock from a timing source connected to the
rear connector module.
Select from the list of timing
sources available to the
module: Network, internal,
or external.
PA Primary Auto-restore—Enables or disables fallback to primary
clock source after a failed condition has cleared. If disabled, the
SCM cannot use the primary clock source until this option is
enabled.
Set to Yes if the node is to
revert to a timing source
that failed and recovered.
SC Secondary Clock—The slot number of the application module that
is the secondary clock source for this shelf. If the primary clock
source fails, this module provides the clock signal used to drive
the transmit clock circuitry for all modules in the shelf using T1
rate clocks.
At the prompt, type the slot
number of the module
selected as the secondary
clock source.
SS Secondary Synchronization—Clock source within the module
selected as the secondary timing source. See PS option in this
table.
Select from the list of timing
sources available to the
module: Network, internal,
or external.
SA Secondary Auto-restore—Enables or disables fallback to a
secondary clock source after a failed condition has cleared. If
disabled, the SCM cannot use the secondary clock source until
this option is enabled.
Set to Yes if the node is to
revert to a timing source
that failed and recovered.
TC Tertiary Clock—The slot number of the application module that is
the tertiary (third) clock source for this shelf. If both the primary
and secondary clock sources fail, this module provides the clock
signal used to drive the transmit clock circuitry for all modules in
the shelf using T1 rate clocks. Same options as the primary
source.
At the prompt, type the slot
number of the module
selected as the secondary
clock source.
TS Tertiary Synchronization—Clock source within the module
selected for the TC option. See PS option.
Select from the list of timing
sources available to the
module: Network, internal,
or external.
TA Tertiary Auto-restore—Enables or disables fallback to tertiary
clock source after a failed condition has cleared. If disabled, the
SCM cannot revert to the If disabled, the SCM cannot use the
tertiary clock source until this option is enabled.
Set to Yes if the node is to
revert to a timing source
that failed and recovered.
X Return to the M1-3 Port Configuration Menu.