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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.
Table 5. Factory Default Settings
Parameter
MUX Service State
Linked Provisioning
Signal Fail Threshold
Signal Degrade Threshold
Cock Source
OC-3 Transmission Sync
Message
NSAP Address
System ID
Clock Out Type
Clock Out LBO
Clock Out Enable
Clock Output
Clock Output Source
Clock Output Source Copy
PM Threshold
Path Trace Message
STS-1 Mapping
DS1 Mapping
Local DS3 Framing
14
Default
OUT OF SERVICE, UAS
ENABLE
-3
1x10
(OC-3 Line)
-5
1x10
(OC-3 Line)
Receive OC-3 A&B
Derive from Source
(OC-3)
Not modified.
Not modified.
DS1 SF
000 - 133 ft
Disabled
Dual output
Receive OC-3
A Output = Copy 0
B Output = Copy 1
Disabled
Null Message
Unmapped
Mapped
M13
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.
61181031L3-5A
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