Multi-Tech Systems Mvp-2400/2410/3010, Mvp-210/410/810 Voice/ip Gateways User Guide

							MultiVOIP User Guide Operation and Maintenance
341
T1 Statistics: Field Definitions
Field
NameValues Description
Red Alarm Integer tally of
alarms
counted since
last reset.The alarm condition declared when a
device receives no signal or cannot
synchronize to the signal being received.  A
Red Alarm is generated if the incoming
data stream has no transitions for 176
consecutive pulse positions.
Blue Alarm Tally since last
reset.Alarm signal consisting of all 1’s (including
framing bit positions) which indicates
disconnection or failure of attached equipment.
Loss of
Frame
AlignmentTally since last
reset.Loss of data frame synchronization.
Excessive
ZeroesTally since last
reset.Displayed value will increment if
consecutive zeroes beyond a set threshold
are detected.  I.e., tally increments if more
than 7 consecutive zeroes in the received
data stream are detected under B8ZS line
coding, or if 15 consecutive zeroes are
detected under AMI line coding.
Status
Freeze
Signalling
ActiveSignaling has been frozen at the most
recent values due to loss of frame
alignment, loss of multiframe
alignment or due to a receive slip.
Line
Loopback
Deactivation
SignalLine loopback deactivation signal has
been detected in the receive bit stream.
Transmit
Line ShortA short exists between the transmit pair for
at least 32 consecutive pulses.
Transmit
Data
OverflowFor use by MTS Technical Support
personnel.
Transmit
Slip PositiveThe frequency of the transmit clock is less
than the frequency of the transmit system
interface working clock. A frame is
repeated. 
						

							Operation and Maintenance MultiVOIP User Guide
342
T1 Statistics: Field Definitions (cont’d)
Field
NameValues Description
Yellow
AlarmTally since last
reset.The alarm signal sent by a remote T1/E1
device to indicate that it sees no receive
signal or cannot synchronize on the
receive signal.
Frame
Search
Restart Flag[To be supplied.]
Loss of
MultiFrame
AlignmentTally since last
reset.In D4 or ESF mode, displayed value will
increment if multiframe alignment has
been lost or if loss of frame alignment has
been detected.
Transmit
SlipTally since last
reset.Slip in transmitted data stream.  Slips
indicate a clocking mismatch (or lack of
synchronization) between T1/E1 devices.
When slips occur, data may be lost or
repeated.
Pulse
Density
ViolationThe pulse density of the received data
stream is below the requirement defined
by ANSI T1.403 or more than 15
consecutive zeros are detected.
Line
Loopback
Activation
SignalThe line loopback activation signal
has been detected in the received bit
stream.
Transmit
Line OpenAt least 32 consecutive zeros were
transmitted.
Transmit
Data
UnderrunFor use by MTS Technical Support
Personnel.
Transmit
Slip
NegativeThe frequency of the transmit clock is
greater than the frequency of the
transmit system interface working
clock. A frame is skipped. 
						

							MultiVOIP User Guide Operation and Maintenance
343
T1 Statistics: Field Definitions (cont’d)
Field
NameValues Description
Bipolar
ViolationInteger tally of
violation count
since last reset.Two successive pulses of the same
polarity have been received and these
pulses are not part of zero substitution.
On an AMI-encoded line, this represents a
line error.  On a B8ZS line, this may
represent the substitution for a string of 8
zeroes.
Receive Slip Tally since last
reset.A receive slip (positive or negative) has
occurred.  Slips indicate a clocking
mismatch (or lack of synchronization)
between T1/E1 devices. When slips occur,
data may be lost or repeated. 
						

							Operation and Maintenance MultiVOIP User Guide
344
E1 Statistics Screen
E1 Statistics: Field Definitions
Field
NameValues Description
Red Alarm Integer tally of
alarms
counted since
last reset.The alarm condition declared when a
device receives no signal or cannot
synchronize to the signal being received.  A
Red Alarm is generated if the incoming
data stream has no transitions for 176
consecutive pulse positions.
Blue Alarm Tally since last
reset.Alarm signal consisting of all 1’s (including
framing bit positions) which indicates
disconnection or failure of attached
equipment.
Loss of
Frame
AlignmentTally since last
reset.Loss of data frame synchronization. 
						

							MultiVOIP User Guide Operation and Maintenance
345
    
E1 Statistics: Field Definitions
(cont’d)
Field
NameValues Description
Receive
Timeslot 16
Alarm
Indication
SignalDetected alarm indication signal in
timeslot 16 according to ITU-T G.775.
Indicates the incoming time slot 16
contains less than 4 zeros in each of
two consecutive time slot 16
multiframe periods.
Transmit
Line ShortA short exists between the transmit
pair for at least 32 consecutive pulses.
Transmit
Data
OverflowFor use by MTS personnel.
Transmit
Slip PositiveThe frequency of the transmit clock is
less than the frequency of the transmit
system interface working clock.  A
frame is repeated.
Yellow
AlarmTally since last
reset.The alarm signal sent by a remote T1/E1
device to indicate that it sees no receive
signal or cannot synchronize on the
receive signal.
Status
Freeze
Signalling
ActiveSignaling has been frozen at the most
recen tvalues due to loss of frame
alignment, loss of multiframe alignment
or due to a receive slip.
Loss of
MultiFrame
AlignmentTally since last
reset.In D4 or ESF mode, displayed value will
increment if multiframe alignment has
been lost or if loss of frame alignment has
been detected.
Receive
Timeslot 16
Loss of
SignalThe time slot 16 data stream contains all
zeros for at least 16 contiguously received
time slots. 
						

							Operation and Maintenance MultiVOIP User Guide
346
  
E1 Statistics: Field Definitions
(cont’d)
Field
NameValues Description
Receive
Timeslot 16
Loss of
MultiFrame
AlignmentThe framing pattern 0000 in 2
consecutive CAS multiframes were not
found or in all time slot 16 of the previous
multiframe all bits were reset.
Transmit
Line OpenAt least 32 consecutive zeroes were
transmitted.
Transmit
Data
UnderrunFor use by MTS Technical Support
Personnel.
Transmit
Slip
NegativeThe frequency of the transmit clock is
greater than the frequency of the transmit
system interface working clock.  A frame
is skipped.
Bipolar
ViolationInteger tally of
violation count
since last reset.Bipolar Violation (or BPV) refers to two
successive pulses of the same polarity on
the E1 line.  On an AMI-encoded line, this
represents a line error.  On a B8ZS line,
this may represent the substitution for a
string of 8 zeroes.
Excessive
ZeroesTally since last
reset.Displayed value will increment if
consecutive zeroes beyond a set threshold
are detected.  I.e., tally increments if more
than 7 consecutive zeroes in the received
data stream are detected under B8ZS line
coding, or if 15 consecutive zeroes are
detected under AMI line coding.
Transmit
SlipTally since last
reset.Slip in transmitted data stream.  Slips
indicate a clocking mismatch (or lack of
synchronization) between T1/E1 devices.
When slips occur, data may be lost or
repeated.
Receive Slip Tally since last
reset.Slip in received data stream.  Slips indicate a
clocking mismatch (or lack of synchronization)
between T1/E1 devices. When slips occur, data
may be lost or repeated. 
						

							MultiVOIP User Guide Operation and Maintenance
347
MultiVoip Program Menu Items
   After the MultiVoip program is installed on the PC, it can be launched
from the  Programs group of the Windows Start menu ( Start |
Programs | MultiVOIP ____ | … ).  In this section, we describe the
software functions available on this menu.
Several basic software functions are accessible from the MultiVoip
software menu, as shown below.
MultiVOIP Program Menu
Menu Selection Description
Configuration Select this to enter the  Configuration
program where values for IP,
telephony, and other parameters are
set.
Date and Time Setup Select this for access to set
calendar/clock used for data logging.
Download CAS ProtocolTelephony CAS  files are for Channel
Associated Signalling.  There are many
CAS files, some labeled for specific
functionality, others for countries or
regions where certain telephony attributes
are standard. 
						

							Operation and Maintenance MultiVOIP User Guide
348
MultiVOIP Program Menu (cont’d)
Menu Selection Description
Download Factory Defaults Select this to return the configuration
parameters to the original factory
values.
Download Firmware Select this to download new versions
of firmware as enhancements become
available.
Download User Defaults To be used after a full set of parameter
values, values specified by the user,
have  been saved (using Save Setup).
This command loads the saved user
defaults into the MultiVOIP.
Set Password Select this to create a password for
access to the MultiVOIP software
programs (Program group commands,
Windows GUI, web browser GUI, &
FTP server).  Only the FTP Server
function requires a password for access.
The FTP Server function also requires
that a UserName be established along
with the password.
Uninstall Select this to uninstall the MultiVOIP
software (most, but not all components
are removed from computer when this
command is invoked).
Upgrade Software Loads firmware (including H.323
stack) and factory default settings from
the controller PC to the MultiVOIP
unit.
“Downloading” here refers to transferring program files from the PC to
the nonvolatile “flash” memory of the MultiVOIP.  Such transfers are
made via the PC’s serial port.  This can be understood as a “download”
from the perspective of the MultiVOIP unit.
When new versions of the MultiVoip software become available, they
will be posted on MultiTech’s web or FTP sites.  Although transferring
updated program files from the MultiTech web/FTP site to the user’s
PC can generally be considered a download (from the perspective of
the PC), this type of download cannot be initiated from the MultiVoip
software’s Program menu command set. 
						

							MultiVOIP User Guide Operation and Maintenance
349
Generally, updated firmware must be downloaded from the MultiTech
web/FTP site to the PC before it can be loaded from the PC to the
MultiVOIP.
Date and Time Setup
The dialog box below allows you to set the time and date indicators of
the MultiVOIP system.
Obtaining Updated Firmware
Generally, updated firmware must be  downloaded from the MultiTech
web/FTP site to the  user’s PC before it can be downloaded from that
PC to the MultiVOIP.
Note that the structure of the MultiTech web/FTP site may change
without notice.  However, firmware updates can generally be found
using standard web techniques.  For example, you can access updated
firmware by doing a search or by clicking on Support. 
						

							Operation and Maintenance MultiVOIP User Guide
350
If you conduct a search, for example, on the word “MultiVoip,” you
will be directed to a list of firmware that can be downloaded.
If you choose Support, you can select “MultiVoip” in the Product
Support menu and then click on Firmware to find MultiVOIP
resources.