14
61181031L3-5A
TX Clock Source should be External, the Clock Out
Source should be Receive OC-3, and the Clock Out
Source Copy should be Option 1. The OC-3 transmit
Sync message should be provisioned for “Don’t Use For
Sync” to avoid a timing loop. (Refer to Appendix B:
DS1 BITS Clock to Multiple Shelves.)
Restore Factory Defaults
The Restore Factory Defaults option resets provisioning
data back to factory defaults.
Table 5
list the factory
default settings for the OC-3 MUX.
WARNING
Disable Linked Provisioning for the other
MUX prior to restoring factory default
settings. Any traffic being carried by the MUX
having factory default settings restored will be
lost.
Reprogram Flash Software
Perform a software upgrade by downloading the desired
binary file via a Y-Modem or TFTP protocol. This
typically requires 5 to 10 minutes. The download
process is not service-affecting.
NOTE
If working and protection OC-3 MUX cards are
available and both need to be upgraded, the user
would be advised to:
(1) Initiate the upgrade process on the MUX
card, which doesn't have an "Active OSI
Stack" on it. This is due to the fact that
rebooting an OC-3 MUX with active OSI
stack on it looses DCC communication for
8-10 minutes before DCC being initialized
on the mate card. The status of the OSI
stack is displayed in the status menu and
can also be obtained through SNMP.
(2) After the upgrade and reboot of one card is
complete, make sure it boots up properly
and carries traffic as intended before initi-
ating an upgrade on the other (mate) MUX
card.
Start Y-Modem Download
To start a Y-Modem download perform the following
steps:
1. Locate the bin file (1181031L3-xxx.bin) to be used
for the software download.
2. Set the download program protocol to Y-Modem.
3. Select the Reprogram Flash Software from the
MUX Provisioning menu.
4. After a delay, letter Cs will appear on the craft
interface screen to indicate connection attempts.
5. In the download program window, select “Send.”
6. Select or type the file path and the file name.
7. Select “Send” to connect and begin transferring the
file.
Table 5. Factory Default Settings
Parameter
Default
MUX Service State
OUT OF SERVICE, UAS
Linked Provisioning
ENABLE
Signal Fail Threshold
1x10
-3
(OC-3 Line)
Signal Degrade Threshold
1x10
-5
(OC-3 Line)
Cock Source
Receive OC-3 A&B
OC-3 Transmission Sync
Message
Derive from Source
(OC-3)
NSAP Address
Not modified.
System ID
Not modified.
Clock Out Type
DS1 SF
Clock Out LBO
000 - 133 ft
Clock Out Enable
Disabled
Clock Output
Dual output
Clock Output Source
Receive OC-3
Clock Output Source Copy
A Output = Copy 0
B Output = Copy 1
PM Threshold
Disabled
Path Trace Message
Null Message
STS-1 Mapping
Unmapped
DS1 Mapping
Mapped
Local DS3 Framing
M13
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