VeEX DS3 BERT User manual
The Verification Experts
Quick Reference Guide
VePAL TX300
DS3 BERT
TRANSPORT
VePAL TX300
Quick Reference Guide
DS3 BERT
OTN/10GE/SDH/
PDH test ports
10/100/1000Base-T and
1000Base-X test ports Navigation
Control
Field Replaceable Smart
Li-Ion Battery
7” Color
Touch Screen
Quick Keys
DC
Input
Ethernet
USB
TX300 Test Set
VePAL TX300
Quick Reference Guide
DS3 BERT
The Home menu can be accessed at anytime during operation
by pressing the Home key on the rubber keypad. The screen is
divided into three presentation areas:
Left
Middle
Right
Home Menu
LEDs: Displays soft LEDs associated with Errors
and Alarms
Tools: IP connection status, Advanced IP features
(Net Wiz, WiFi Wiz, VoIP, and IPTV applications),
Fiber Scope, ReVeal EZ Connect
Utilities: Applications (Help, Settings, Files) which
are common to all VePAL handheld test sets
Test Applications specic to the test set (DS1, DS3,
SONET, Ethernet, Fiber Channel, 3.072G Testing,
Advanced Mode)
Start/Stop
Err Inj/Alarm: Tap to insert an error or alarm
Alarm/Err: Pull down menu with buttons for alarm
generation and error injection
DS3 Loop: Activate the loopback
VePAL TX300
Quick Reference Guide
DS3 BERT
Allows the user to set up the DS3 interfaces and associated test
parameters prior to running a test.
DS3 Tools Menu
DS3 Pulse Mask
FEAC Tasks
Round Trip Delay
DS3 Menu
DS3 Home Menu
Setup – congure
Interface,
Measurement and
General settings;
Framing, Line
code, Pattern,
Clock source and
Offset options are
also congured in
this screen
Results – view Summary, Analysis, Errors/Alarms, Histogram,
Graph, Signal, and Event Log
Alarm/Error – select the Alarms and Errors type/ow
Tools – Pulse Mask, View Rx Data, Round Trip Delay, ISDN,
VF Tasks
Proles – all have the ability to save proles
VePAL TX300
Quick Reference Guide
DS3 BERT
1. Connect to the DS3 test interface using the BNC connectors
2. Power on the unit
3. From the DS3 Home menu, tap on the Setup menu
4. Congure the Measurements and General settings
Conguration
5. Tap the Interface tab to set up the DS3 interfaces and
associated test parameters prior to running a test.
External Clock: The clock for the transmitter is derived from a 1.5Mbit/s
signal or 1.5MHz BITS clock present on the SMA connector and 1.5Mbit/s
signal present on the RX2 balanced or AUX BNC unbalanced.
Offset: The clock for the transmitter is derived from the internal clock
generator. It can change the offset while measurements are running. Use
numeric keys to increase/decrease the frequency shift up to 0.01 ppm.
Frequency offset: ±50 ppm with 1, 0.1, 0.01 ppm resolution.
Line Code: line code
opons are B3ZS or AMI
Clock Src: Internal,
External (SMA or 2nd RX
for balanced or AUX RX
for unbalanced), From
RX, Oset (±50 ppm)
Measurements:
Mode - xed duraon or
delayed start
Performance Analysis-
None, G.821, G.826, M.2100
Jier - ON or OFF
General: Audible Alarm
and Auto Save sengs
VePAL TX300
Quick Reference Guide
DS3 BERT
To configure fields that
require alpha or alpha-
nu m eri c en t r y, su ch
as Frequency Offset, a
configuration keypad
will appear when the
applicable eld is selected.
6. Tap to return to the previous menu.
7. Congure the Rate.
Tabs for the Timeslot
Selecon are Clear All
and Select All, or tap
the timeslot number
to select an individual
meslot.
Low Rate can be set to
DS3, DS1 or Fraconal
DS1 (Nx64 or Nx56)
DS3 Framing opons are
Unframed, M13, or C-BIT
DS1 Channel options
are 1 to 28; DS1 Framing
opons are Unframed,
D4 (SF), or ANSI T1.107
(ESF)
Conguration (cont’d)
VePAL TX300
Quick Reference Guide
DS3 BERT
8. Congure the Pattern.
9. Tap the Auto-cong button.
−A search for DS3 signals is performed to determine the
signal type, rate, framing, pattern.
INVERT: Inversion of PRBS polarity is also available. Inversion of xed
words is not permitted.
Use the paern drop
down box to select
the test paern. PRBS,
xed words and 32 bit
user dened paerns
are available.
Conguration (cont’d)
Tap . If the
search is successful, a
“Complete” result will
be displayed.
VePAL TX300
Quick Reference Guide
DS3 BERT
10. When the test is started, the screen automatically moves to
the Results, Summary screen.
−Results can be viewed by selecting the following tabs:
Summary, Analysis, Errors/Alarms, Histogram, Graph,
Signal, and Event Log
Summary screen: Provides an overview of any alarms, errors
or signal failures.
Analysis screen: ES, SES, AS, UAS are evaluated and a
Pass/Fail result is displayed in conjunction with path allocation
of between 0.1 and 100%.
Results
VePAL TX300
Quick Reference Guide
DS3 BERT
Errors/Alarms screen: The soft LEDs on screen are arranged
logically and depend on signal hierarchy, structure, payload and
framing selected. The soft LEDs have a tri-color function.
Results (cont’d)
Note: Tapping the individual soft LED will automatically link you to
the applicable results screen, which provides detailed information.
Green: No error or
alarm is present
Red: An error or
alarm condition
is detected and is
currently present
Yellow: Indicates a
history condion
VePAL TX300
Quick Reference Guide
DS3 BERT
Signal screen: Tap the Signal tab to bring up the Frequency
and Level results.
Results (cont’d)
FREQUENCY – the received signal frequency and offset is
measured and displayed.
−45M current: Indicates the frequency of the input signal
−Offset: Indicates the difference between the standard
rate and the rate of the input signal
−Min (ppm): Indicates the difference between the
standard rate and the minimum deviation detected in
the input signal
−Max (ppm): Indicates the difference between the
standard rate and the maximum deviation detected
in the input signal
LEVEL – measures the Peak and Peak-Peak voltage
values of the incoming signal.
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