VeEX VePAL TX300 User manual

The Verification Experts
Quick Reference Guide
VePAL TX300
DS3 MONITOR
TRANSPORT

VePAL TX300
Quick Reference Guide
DS3 MONITOR
TX300 Test Set
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

VePAL TX300
Quick Reference Guide
DS3 MONITOR
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 specic 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 MONITOR
Allows the user to set up the DS3 interfaces and associated test
parameters prior to running a test.
DS3 Home Menu
Setup – congure
Interface,
Measurement and
General settings;
Framing, Line
code, Pattern,
Clock source and
Offset options are
also congured 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
DS3 Monitor – a search for Line Code, Framing, Contained
DS1 if present, and Test Pattern in Rx DS3 signal
Proles – all have the ability to save proles
DS3 Tools Menu
DS3 Pulse Mask
FEAC Tasks
Round Trip Delay
DS3 Home

VePAL TX300
Quick Reference Guide
DS3 MONITOR
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 DS3 Monitor menu
4. Congure the Measurements and General settings
Conguration (Single DS3)
5. Tap the Interface tab to set up the DS3 interfaces and set up
the Termination for sensitivity of receiving signal.
Terminated: The received signal is terminated with a 75ohm impedance
enabling the unit to decode the signal over a wide range of cable losses.
Monitor: To be used when the measurement is made at a Protected
Monitoring Point (PMP) of network equipment. The PMP level can range
between -20 and -26dB. The TX300 is fully compliant with ITU-T G.772
and relevant sections dening PMP.
Measurements:
Mode - xed duraon or
delayed start
Performance Analysis-
None, G.821, G.826, M.2100
Jier - ON or OFF
General: Audible Alarm
and Auto Save sengs
Dual: Dual Rx OFF
Terminaon: High, DSX,
Monitor, Low
Note: Transmit is turned off in monitor mode.

VePAL TX300
Quick Reference Guide
DS3 MONITOR
6. Select the Mode.
Conguration (cont’d)
DS3/45M-Muxed
DS1/1.5M: search
DS3 and selected DS1
channel check
DS3/45M: Only search
DS3
AUTO: search DS3 then
rst DS1 channel
Line Code: B3ZS or AMI
DS3 Framing: Unframed,
MX13, C-BIT
DS1: Contains DS1 if
present
Test Paern: Searching
paern
Status: Complete
Searching Failed:
Message shows “Higher
level alarms prevent
detecon”
7. Press Start - Searching for Line Code, Framing, Contained
DS1 if present, and Test Pattern in Rx DS3 signal.

VePAL TX300
Quick Reference Guide
DS3 MONITOR
Conguration (Dual DS3)
8. Congure the Dual DS3 Monitor mode
−Set the Dual: ON
−Set the Termination for sensitivity of receiving signal.
Dual: ON, for Dual DS3
Monitor
Terminaon: High, DSX,
Monitor, Low
Mode: DS3
Dual LEDs
Line Code: B3ZS or AMI
DS3 Framing: Unframed,
MX13, C-BIT
Test Paern: Searching
dened paern
Status: Complete
9. Tap Start - Searching for Line Code, Framing and Test
Pattern in Rx DS3 signal
Note: Second Rx Port will be the same conguration searching as Primary Port.

VePAL TX300
Quick Reference Guide
DS3 MONITOR
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%.
10. Once the OK button is pressed, 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
Results
*Note: TX Pattern is not shown because TX is turned off.

VePAL TX300
Quick Reference Guide
DS3 MONITOR
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 condion

VePAL TX300
Quick Reference Guide
DS3 MONITOR
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.

VePAL TX300
Quick Reference Guide
DS3 MONITOR
Results (cont’d)
Event Log screen: Tap the Event Log tab to display a listing of
the Error and Alarm events recorded during a test.
EVENTS – presented in chronological sequence - number,
type of event, start time and duration, duration (alarms)
and ratio/count (errors) are displayed. Scroll through the
pages depending on the number of events recorded.
11. When Timed or Auto modes of measurements are nished,
the testing will stop automatically. To stop the test suite
before that, press STOP.
12. To save the test results, press the store key on the
rubber keypad. The results le can be viewed in the FILES/
SAVED results index.

VePAL TX300
Quick Reference Guide
DS3 MONITOR
The Verification Experts
VeEX Inc.
2827 Lakeview Court
Fremont, CA 94538 USA
Tel: [phone]
Fax: [phone]
www.veexinc.com
[email protected]
© 2011 VeEX Inc. All rights reserved.
VeEX is a registered trademark of VeEX Inc. The
information contained in this document is accurate.
However, we reserve the right to change any
contents at any time without notice. We accept no
responsibility for any errors or omissions. In case of
discrepancy, the web version takes precedence over
any printed literature. D02-00-026P A00 2011/07
Results (cont’d)
Note: If the RX signal is STS-1 (which is a commonly found
mistake in the USA CO because the jacks are the same as
DS3s), when auto searching for DS3 coding and framing, sync
will be on unframed.
How can you tell if the signal is STS-1?
In the measurement screen, there will be a number of different
types of errors, but the frequency measurement will be at 51MHz!