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ACCULINK 317x E1 DSU/CSU
3-32 December 1996 3170-A2-GB20-20
Clearing DS0 Channel Allocation
You can clear (deallocate) all the DS0 channels
currently allocated to either the Network E1 interface, the
DTE Drop/Insert interface, or the synchronous data ports.
To clear DS0 channel allocation,
1. Press F3 to select Cnfig from the top-level menu
screen.
2. Select the configuration option set to be copied
into the Edit area by using the appropriate
Function key
. Use the scroll keys, if necessary
.
3. Press F1 to select Edit.
4.
Press the
key from the Edit screen to display
the Chan selection.
5.
Select Chan.
F1
Edit:
Port NET Chan
F2
F3
6.
From the Channel Config screen, press F2 to
select Clear
.
F1
Channel Config:
Dsply Clear DTE
F2
F3
7. From
the Clear Channel screen, select NET to
clear all DS0 channels assigned to the Network E1
interface. Or, select DTE to clear all DS0 channels
assigned to the DTE Drop/Insert interface. Or,
select a port to clear all assignments for that data
port.
F1
Clear Channel:
NET DTE Port1
F2
F3
Providing Backup Capability
If the E1 network fails, the E1 DSU/CSU provides the
ability to reconfigure the unit and restore (at least
partially) priority data circuits through an external backup
device.
You can store backup configuration options in the
Customer 2 (Cust2) set of customer
-defined configuration
options. The Paradyne Enterprise MIB variable
devConfigAreaCopy allows the entire contents of one
configuration area to be copied into another configuration
area via SNMP
.
By cross-connecting two synchronous data ports to
each other, one port can provide a backup path for the
other
. As soon as the ports are configured to be mapped to
each other, Data Set Ready (DSR) for the ports is turned
on. The external backup device can be configured to
initiate dialing when it detects the off-to-on transition of
DSR.