Intec Argus 3u plus, Argus 3u NT User Manual

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ARGUS
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ARGUS 3u plus /3u NT
ARGUS 3u
Manual
NT
/ 3u
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ARGUS
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ARGUS 3u plus /3u NT
by intec Gesellschaft für Informationstechnik mbH D-58507 Lüdenscheid, Germany, 2007
Alle Rechte, auch der Übersetzung, vorbehalten. Kein Teil des Werkes darf in irgendeiner Form (Druck, Fotokopie, Mikrofilm oder einem anderen Verfahren) ohne schriftliche Genehmigung reproduziert, vervielfältigt oder verbreitet wer­den.
All rights are reserved. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without intec´s permission.
Version: 1.0
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1 Introduction ......................................................... 5
2 Safety Instructions ............................................. 9
3 Technical data ................................................... 10
4 Operation ........................................................... 13
5 Menu Hierarchy ................................................. 17
6 Automatic Access Test .................................... 21
7 Setting the type of access ............................... 26
7.1 Line Test ............................................................ 27
8 Select the Access Mode ................................... 31
8.1 Operation on a BRI or U-Interface access ...... 31
8.1.1 TE-Simulation mode .................................. 31
8.1.2 Permanent circuit ....................................... 32
8.1.3 BRI Passive Trace/Monitor (optional) ........ 37
8.1.4 Recorder .................................................... 39
8.1.4.1 Administration of the recorded data ........ 41
8.2 Operation on a POTS (analog) access ........... 44
8.2.1 POTS terminal ........................................... 44
8.2.2 POTS monitor ............................................ 45
9 Single Tests ...................................................... 47
9.1 Test the Supplementary Services ................... 47
9.1.1 Suppl. Services Test for 1TR6 Protocol .... 47
9.1.2 Suppl.service interrogation in DSS1 .......... 49
9.1.3 Suppl. Services Tests – Error messages .. 53
9.2 Service check .................................................... 54
9.3 Bit error test ...................................................... 58
9.3.1 Start BERT ................................................ 60
9.3.1.1 BERT - saving ........................................ 64
9.3.1.2 Display the saved BERT results ............. 65
9.3.2 BERT wait ..................................................66
9.3.3 B-channel loop ...........................................67
9.4 X.31 Test ............................................................ 68
9.4.1 Automatic X.31-Test .................................. 68
9.4.2 Manual X.31 Test ...................................... 70
9.5 CF Interrogation ................................................ 72
9.6 CF - Activation .................................................. 74
9.7 CF - Delete ......................................................... 75
9.8 MSN Interrogation (only on a BRI with DSS1) 76
9.9 Time measuring ............................................... 77
9.9.1 Connection setup time ............................... 78
9.9.2 Time measurement: B-channel delay ........ 79
9.9.3 Time measurement: Interchannel delay .... 81
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10 Connection ....................................................... 83
10.1 Setting up an ISDN connection ....................... 83
10.2 Clearing down an ISDN connection ............... 90
10.3 Operation on a POTS (analog) access ........... 92
11 Test Manager .................................................... 94
11.1 Simultaneously Starting Several Tests .......... 95
11.2 Switching Between Tests ................................ 98
11.3 Cancel All .......................................................... 98
12 Automatic Test ................................................. 99
12.1 Automatic Start test ....................................... 101
12.2 Display Results .............................................. 104
12.3 Sending the results of a tests to a PC .......... 105
12.4 Deleting the results of a test ......................... 106
12.5 Sending the results of all tests to a PC ........ 107
13 Level Measuring ............................................ 108
13.1 Level measuring on a BRI access ................ 108
13.2 Voltage measurement on a U-interface ........ 109
13.3 Voltage measurement on a POTS access .... 111
14 L1 status ......................................................... 112
14.1 The L1 status of a BRI access ...................... 112
15 Configuration .................................................. 113
15.1 Trace/Remote ................................................. 113
15.2 Configuration: ISDN ....................................... 115
15.3 Configuration: BERT ...................................... 119
15.4 Configuration: POTS ...................................... 122
15.5 Configuration: X.31 ........................................ 125
15.6 Configuration: ARGUS .................................. 126
15.7 Saving Call Numbers ..................................... 129
15.8 Reset ............................................................... 131
16 Accu servicing ................................................ 133
16.1 Automatic recharging of the accumulators . 133
16.2 Manual accumulator servicing ..................... 134
17 Testing Features with the Keypad ................ 135
18 Appendix ......................................................... 137
A) Acronyms ................................................... 137
B) CAUSE-Messages – DSS1 Protocol .......... 140
C) CAUSE-Messages – 1TR6 Protocol .......... 142
D) ARGUS Error Messages ........................... 144
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1 Introduction
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ARGUS 3u plus /3u NT
1 Introduction
The ARGUS 3u installation tester makes installation work and trouble shooting on BRI and POTS accesses both safe and uncomplicated. Additionally, the ARGUS 3u also supports U-interface accesses. With its rechargeable batteries and internal charger, the ARGUS 3u is exceptionally well suited for use in the field. The intuitive menu operation combines convenient cursor keys and softkeys with a four-line backlit display.
Besides automatic access tests, service checks and supplementary services tests, the ARGUS 3u also supports among others physical measurements with evaluation, cabling tests, and bit error rate measurements
The ARGUS can be enhanced with the WINplus software package, which enables linking the ARGUS to a PC. WINplus can be used to load changes to the protocols or new functions into the ARGUS at any time (software updates free of charge at www.argus.info).
If you use the ARGUS on a BRI in an ISDN system whose specifications deviate from the (DIN ETS 300 102) standard
(e.g. some networked PBXs), you must take these manufacturer-specific modifications into account. In such cases, please contact the distributor of your ISDN PBX for assistance.
The ARGUS Functions - Overview:
Protocol Recognition and B-Channel Test for ISDN Accesses
After you select the operation mode, the ARGUS will automatically determine the protocol used by the access under test and will then test the availability of the B­channels.
Telephone connections
Can a telephone call be placed from this access to every other number and/or can this access receive a call?
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Service Tests
Does the tested access support connections with the most important services, such as, ISDN telephone service, Group 4 - Facsimile or datatransmission at 64 kbit/s etc.? Additionally, 3 user-specific services can be saved in the ARGUS and tested on the access under test.
Bit error tests (BERT)
Performs a BERT in an extended call to itself via a loopbox or in end-to-end operation. The ARGUS will, if needed, handle the loopbox function itself.
Supplementary Services
The ARGUS automatically tests the supplementary services made available by the exchange.
Leased Line Tests – tests permanent circuits with BERT and speech
POTS functionality (does not apply for the 3u basic)
Does the POTs access support call number transfer?
Monitoring a POTS access (passive listening-in)
(does not apply for the 3u basic)
Passive trace on a BRI access
Line Test (optional)
Checks the terminating resistors for the cabling of a four­wire bus. Detects cabling problems (e.g. broken wires, short-circuits or crossed wires).
CF Interrogation
The ARGUS will check, whether a call diversion has been setup on the access under test. The ARGUS can setup or clear down call diversions in the exchange.
MSN interrogation (only on a BRI access)
On a P-MP access using the DSS1 protocol, the ARGUS will determine the MSNs of the access under test.
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Access Acceptance Reports (with optional WINplus)
When the ARGUS is linked to a PC via the serial interface, it is, as an example, possible to create and print a comprehensive test report on the PC.
Testing Features with the Keypad
Supports manual tests in the so-called keypad mode. If the network supports this feature, the user can send a command sequence and can then test service features in a dialog.
Should you have any further questions, please contact us:
intec Gesellschaft für Informationstechnik mbH
Rahmedestr. 90
D-58507 Lüdenscheid
Tel.: +49 (0) 2351 / 9070-0
Fax: +49 (0) 2351 / 9070-70
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2 Safety Instructions
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ARGUS 3u plus /3u NT
2 Safety Instructions
The ARGUS may only be used with the included accessories. Usage of other accessories may lead to erroneous measurements and may even cause damage to the ARGUS and the connected installation.
The ARGUS is only to be used in accordance with the instructions in this documentation. Any other usage may result in bodily injury and destruction of the ARGUS.
To prevent electrical shocks or damage to the ARGUS, do not connect it to lines with voltages in excess of 100V!
Never attempt a measurement with the case open!
The ARGUS is not watertight. Protect the ARGUS from exposure to water!
Do not use batteries in the ARGUS3u; this tester is designed to be used with - and to automatically charge ­accumulators (rechargeable batteries). (see page 133 Accu servicing)
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3 Technical data
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ARGUS 3u plus /3u NT
3 Technical data
Dimensions /
Weight
Height 229 mm
Width 72 mm
Depth 35 mm
Weight 350 g (without batteries and protective case)
Keypad
21 Keys
LCD display
LCD display with
switchable
background lighting
Inputs / Outputs
1 RJ45 for BRI, U­Interface or POTS access
1 jack for an external power supply
1 RJ45 for Line Test (optional) and serial transfer
Temperature Ranges
Ambient-temperature:
0 °C to +50 °C
4 lines with 16 characters
Memory
EEPROM Non-volatile
memory: 16 kBytes
Flash program
memory: 2 Mbyte
S-RAM: 512 Kbytes
Operating temperature:
-5 °C to +55 °C
Power
Supply
9 V, plug-in power supply
or
BRI feed
ARGUS 3u only:
3 Accumulators AA (Mignons) NiMH 1600mAh
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4 Operation
LCD display
4x16 characters
Numerical keypad
4 Operation
Receiver inset
LEDs
Soft keys
Menu control
Confirmation key Layer 1 measurement
Calling
Pickup / Hang up
Power Microphone
Fastener for shoulder strap
Power Key:
- To switch the ARGUS ON/OFF
- To start up again after a power down
- to switch on the display backlighting In battery mode to save power, the backlighting will switch off automatically after 5 seconds.
- To switch the ARGUS OFF (must be pressed somewhat longer)
If it is turned off while the power supply is connected, the unit will begin to charge the accumulators. (s. Seite 133 Accu servicing)
Confirmation key:
- Select menu or continue
Menu control:
- Open the menu list
- Scroll through lists
- Select a menu
- Select a function in an
open menu
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4 Operation
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Telephony
- Pickup or hang up
- Simplified overlap signalling: Press
the telephone key twice.
Layer 1 Measurement:
start the Layer 1 measurement (Level/Voltage)
Number Pad:
- Entry of the digits 0....9 and of the
special characters *, # (e.g. the call number or
numerical entry in a function)
- Direct function call
(see Seite 25)
Softkeys:
The function of the 3 softkeys varies with the situation. The current function of each softkey is shown in the highlighted fourth line of the display.
Connectors on the end:
9 V-
Connection for the external power supply. When the power supply is plugged into this connector, the rechargeable batteries will be disconnected. After it is switched off, the ARGUS will automatically recharge the accumulators(s. Seite 133 Accu servicing).
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Line
Pin Assignment 3/4/5/6 BRI 7/8U-interface and POTS
Connection for BRI lines (TE simulation or monitoring) Connection for a BRI terminal (NT-Simulation) Connection for a POTS (analog network) Connection for the U-interface network
L-Test
- Connection for the optional test adapter for line tests
4 Operation
Headset
- Connection for the Headset
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4 Operation
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Replacing the accumulators
The battery compartment for the three accumulators (rechargeable batteries) is located on the back of the case. Unscrew the screws to remove the cover of the case and insert the accumulators in accordance with the polarity marking.
Use only NiMH accumulators.
The current state of the charge will (if the ARGUS is not connected to a power supply) be displayed graphically.
In the LCD display, a battery symbol will begin to blink, when there is still approximately 5 minutes reserve. During this period, it is possible that there may be audible interference and in rare cases even malfunctions (Seite 133).
Power Down
In accu/battery operation, if the ARGUS is idle for 15 minutes, it will automatically switch to the power-down mode (power-down). The ARGUS will remain in power-down mode until the Power-Key is pressed again.
Reasonably enough, the ARGUS will not enter power-down mode during a test (e.g. Loopbox) or when it is in Trace mode.
As an alternative, it is possible to operate the ARGUS using the included power supply. When the power supply is connected, the accumulators are automatically disconnected.
The ARGUS can also be powered from the BRI line. In this case, it does not need accumulators or the plug-in power supply.
Whenever the ARGUS is powered from the plug-in power supply or the BRI line, the power-down mode is reasonably enough not active.
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5 Menu Hierarchy
Switch the ARGUS
A list of all the menus will open
5 Menu Hierarchy
The ARGUS automatically performs an access test and checks the 2-wire line for HF signals (page 21).
Menu Access
Selection of the physical access
The Access Mode menu will open automatically
Menu Access mode
BRI, U-Interface and POTS The ARGUS determines whether it is a BRI or POTS access.
Basic Rate Interface page 26 U-Interface page 26 POTS interface ( for the 3u basic optinal) page 26 Automatic page 26 Line Test (does not apply for the 3u basic) page 27
BRI
TE automatic page 31 TE P-P page 31 TE P-MP page 31 NT (optional) Recorder page 39 BRI pass. trace page 37 Monitor (optional) Permanent circuit page 32
U-interface
POTS
TE automatic page 31 TE P-P page 31 TE P-MP page 31 Permanent circuit page 32
POTS terminal page 44 POTS monitor page 45
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5 Menu Hierarchy
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ARGUS 3u
Menu Single
POTS
Menu Test Manager
BRI, U Interface
Bit Error Test page 58 Supplementary Services page 47 Service Testspage 54 X.31 Test page 68 CF Interrogation
CF Activation page 74 CF - Delete page 75 MSN Interrogation
Telephony page 92
BRI, U Interface
BERT Start BERT Wait B-channel
Automatically
page 72
page 76
Start new one page 95 End all page 98
Manually
Connection setup time B-channel delay
Management of multiple, simultaneous and independent tests/connections
BRI, U Interface
Menu Automatic Tests
The ARGUS will automatically execute the test sequence and save the results in its internal Flash
BRI
Menu Level Measuring
Start page 101 View page 104 Test data to PC page 105 Delete page 106 All tests to PC page 107
Remote end page 108
U-interface
Uk0 feed page 109 Power U page 109
POTS
Polarity page 111
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Menu L1 status
The ARGUS displays the current status of Layer 1 on the BRI accesspage 112.
5 Menu Hierarchy
Menu
Settings
The ARGUS can be configured to suit your special requirements. The parameters are clearly organised in submenus (e.g. the ISDN parameters are in the ISDN submenu) The default (factory) settings can be restored by selecting "Reset“.
Trace/Remote page 113
ISDN page 115
- Protocol
- Alerting mode
- BRI termination
- Call parameter
- Services
- Call accepted
- Voice coding
- DTMF / Keypad
- Dest. no. MSN
- CUG Index
BERT page 119
- BERT duration
(time)
- Bit patt. BRI/U
- Error level
- HRX value
POTS page 122
- POTS dial
- POTS CLIP
- DTMF parameter
- FLASH time
X.31 page 125
- TEI
- LCN
ARGUS page 126
- Menu language
- LCD contrast
- Baud rate
- Handset
- Alarm
- Feed
- Battery type
- Software option
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5 Menu Hierarchy
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ARGUS 3u
Numbers page 129
Reset page 131
Menu Accu servicing
Charging page 133 Discharging page 133
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6 Automatic Access Test
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ARGUS 3u plus/3u NT
6 Automatic Access Test
Using the included cable, connect the ARGUS to the access to be tested.
Power Key: Switch on the ARGUS.
The ARGUS automatically performs an access test (Automatic setting in the Access menu see Page 26). No manual entries are required. The The access under test (BRI,
U interface or POTS) can also be connected afterwards.
If the ARGUS finds a DC voltage on the 2-wire line (U­Interface or POTs), it will check whether there is a HF signal on the line. With < TE >: determine the access
If the test fails or if you wish to provoke a specific error situation, you can manually select any interface in the Access menu later (see “Setting the type of access” on page
26).
Initializing the ARGUS :
- Operating the ARGUS on a BRI or U-Interface access:
The ARGUS will first setup Layer 1. While Layer 1 is being setup, LED L1 over the display will blink. If the ARGUS cannot setup Layer 1, it will display the message "No Net. When the ARGUS is operated on a U-interface access, it can take up to 2.5 minutes to activate Layer 1.
As soon as Layer 1 is successfully setup, LED L1 will light continuously.
Once Layer 2 has been setup LED L2 will light.
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If both modes (P-P / P-MP) are found when Layer 2 on the D-channel is checked, the mode must be selected manually (see Page 31).
If everything has been correctly detected, the ARGUS will display the successfully found access and access mode in the third line. Additionally, a qualitative assessment of the level will be displayed. The ARGUS will automatically determine the protocol or use the manually selected protocol (see Page 116) . On a bilingual access, the ARGUS will use the DSS1 protocol. LED L3 will light after the ARGUS has setup Layer 3. At the same time the ARGUS will start the B-channel test. The results will be displayed on the ARGUS. If an error occurs in the B-channel test (e.g. access is not plugged-in), the ARGUS will - depending on the class of error - either repeat the initialization or show an error message (see ARGUS Error Messages Page 144).
The ARGUS will then idle in the Status display.
Status display example:
The ARGUS displays the type of access (BRI), the availability of the B-channels (B12), a level evaluation (OK), the access mode (TEs), the bus configuration (P-MP) and the protocol (DSS1). If you press the <RESTART> softkey, the B-channel test will be repeated.
Softkeys:
The current settings of the softkeys are displayed in the fourth line. The ARGUS is in largest part operated with the two ↓↓↓ ↑↑↑↑ ­Keys, the confirmation key and the three softkeys. On the following pages, only the softkey's meaning in the respective context is shown - enclosed in brackets < > , e.g. < NO >. The < > softkey serves the same function as the
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confirmation key and the < ↓↓↓ > softkey performs the same function as the corresponding arrow key on the ARGUS keypad.
In the example above, the test found that it is a BRI multiple device access using the DSS1 protocol
Shown on the second line in the display:
The availability of the B-channels: B12 both channels are available B1- only B-channel 1 is available B-2- only B-channel 2 is available B-- no B-channel available
If only one B-channel is available, this can have an impact on the service check and the testing of the supplementary services.
Level evaluation only on a BRI access: OK the level is in order << the level is too low >> the level is too high
-- no level
Shown on the third line in the display:
Access Mode: TEs = TE Simulation Slave Mode TEm = TE Simulation Master Mode
Bus configuration: P-P: Point-to-Point P-MP: Point-to-Multipoint
It must be mentioned again, that the ARGUS only determines the general bus status once when switched on or when the ARGUS first connected. On the other hand, the status of the protocol stacks for Layer 1, 2 and 3 will be continually monitored and displayed.
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- Operating the ARGUS on a POTS access (for ARGUS 3u basic optional)
The ARGUS displays the access type (POTS) and the line voltage when idle.
ARGUS - Main menu
Status display
Repeat B­channel test
Main Menu
Marked Menu
Return to Status display
scroll further .
The ARGUS opens the menu marked with a .
List is continued
In the Main menu, you can scroll through the available menus with the <> key:
BRI Access
U-interface Access
POTS Access
Single Tests Single Tests Single Tests
Test Manager Test Manager _______
Automat.Tests Automat.Tests Automat.Tests
Level
Measuring
Level
Measuring
Level
Measuring
L1 Status ________ _______
Configuration Configuration Configuration
Access Access Access
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Accu servicing Accu servicing Accu servicing
With the <>, you can open the menu currently marked with the → (in the example Single Tests).
Name of the opened menu
List is continued
Return to previously shown Display
scroll further
The ARGUS opens the type of function/ submenu marked with .
Using the numeric keys to start a function:
Using the numeric keys, you can start important ARGUS functions directly, regardless of the currently active menu level:
Numeric key 2Start Service Test Numeric key 3 Start Supplemental Service Test Numeric key 4 Start Auto. Test Numeric key 6 Start Test Manager Numeric key 7Open Speed-Dialing Memory Numeric key 8Trace ON/OFF Numeric key 9 Start Bit Error Rate Test (BERT)
If a function is called where the ARGUS expects the entry of a digit, pressing a number key will be interpreted as the expected input.
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7 Setting the type of access
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7 Setting the type of access
In the Access menu, the user must select the type of physical access to which the ARGUS is actually connected.
If Automatic is selected, a fully-automatic sequence will be started: The ARGUS will automatically determine the type of interface (BRI, U interface or POTS) and set the access to TE-mode.
Status display
If you press the <RESTART> softkey, the B-channel test will be repeated. Open the Main menu
Using the < ↓ > select the Access menu
The Access menu will open
Using the <↓> select the type of access (e.g. BRI access)
Confirm the access
The Access Mode menu will open automatically.
The following applies for all
displays: If you press the < > , the ARGUS will return to the previous display.
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7.1 Line Test
The ARGUS tests the terminating resistors for the cabling of a four-wire bus. Additionally, the test also detects errors in the cabling e.g. any broken wires, short-circuits and crossed wires.
Unplug the NT and all terminal equipment from the bus, before performing a line test!
If the ARGUS detects an operator error (Line test on a fed bus), it will emit a continuous acoustic signal. In this case, to prevent the destruction of the ARGUS, the line test will not be started.
Test sequence:
To perform a thorough test of the lines, the test must be done in 2 steps.
First step:
Use the test adapter to connect the ARGUS to the lines to be tested. In this step, the ARGUS will determine whether or not there is a short circuit or a terminating resistor and whether there is a fault between the terminating resistor – if there is one – and the test adapter.
3
6 4
5
NT
U Interface
Unplug the NT!
Socket 1
BRI
Last socket
L-Test jack
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Possible test results:
- The ARGUS has detected a short-circuit: Clear the fault and repeat the test
- The ARGUS reports that the resistance is wrong: Repeat the test from another socket, if necessary remove the terminating resistor(s)
- The ARGUS reports that the line is OK: Continue test with step 2
Second step:
Connect the test adapter to the jack, which was tested as OK in the first step. Connect the ARGUS via its L-Test jack to the next socket on the bus.
3
6 4
NT
5
U Interface
Unplug the NT!
Socket
BRI
Last socket
L-Test jack
Possible test results:
- The ARGUS reports broken connections or crossed wires: Clear the fault and repeat the test beginning with the first step.
- The ARGUS reports that the line is OK: Connect the ARGUS (L-Test jack) to each of the sockets on the bus one after the other.
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Test steps on the ARGUS:
With the <↓>, select Line Test.
Start the Line Test
Sample test results – Line Test:
No errors occurred.
Wires 3 and 6 are crossed.
If the message “Crossed wires: Term. wrong”, the measurement conditions with respect to the location or complexity of the fault are unfavorable. In this case, you should change the measurement conditions in the following manner: Remove the terminating resistors from the bus and repeat the test. Frequently it is enough to simply swap the test adapter and the ARGUS.
Comments about the test results:
- The bus can first be considered to be free of defects, when all of the sockets have been tested as OK.
- Short-circuits are reported as a resistance value < 10 ΩΩΩ.
- Crossed wires and broken connections between the test adapter and the terminating resistor cannot be found.
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- The displayed test results are either for just the bus lines
between the ARGUS and the test adapter in the case of cross-wires and broken connections or for the entire bus in the event of short-circuits and terminations.
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8 Select the Access Mode
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8 Select the Access Mode
The Access Mode menu is not selectable from the Main menu. It opens automatically once the physical access is selected in the Access menu.
8.1 Operation on a BRI or U-Interface access
8.1.1 TE-Simulation mode
TE automatic
On a BRI or U-interface access, the ARGUS will automatically determined the D-channel Layer 2 mode (PP or P-MP). If the ARGUS determines that the access supports both modes, the following Configuration menu will open:
Using the <↓ >, select L2
mode
.
Confirm the selected L2
mode
The ARGUS will return to the Main menu.
TE P-P or TE P-MP
Afterwards, the access and the protocol stack will be initialized in accordance with the selected setting.
The ARGUS will then jump to the Main menu.
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8.1.2 Permanent circuit
With the <↓ >, select Permanent switch.
Access mode confirmed
The ARGUS is now switched to Permanent circuit mode (the display shows LL [Leased Line]) and will open the Status display.
Besides dial-up connections to any subscriber, ISDN also supports the use of permanent circuits switched to a specific remote location.
These permanent circuits are available after setting up Layer 1, in other words after synchronizing both terminals by exchanging HDLC-frames.
As a quick test of a permanent circuit, you can simply call the opposite end using a selected B-channel. However, for a more revealing test of a permanent circuit, you should perform a bit error rate test. Both ends of the permanent circuit must use the same channel.
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Telephony on permanent circuits
The function can be started with the -Key or via the Phone / connec. function in the Single tests menu (see Chap. 10 page 83). After the B-channel for the permanent circuit is selected, the telephone connection will be setup automatically.
The ARGUS displays the B­channel used (e.g. B01) and the duration of the permanent circuit. Use the< TM > softkey to start the Test Manager (see Page
94)
Terminate permanent circuit
The ARGUS will open the Status display
.
BERT on permanent circuits
A number of variations are possible in testing the permanent circuit with the bit error rate test.
In the simplest case, a B-channel loop will be set up at the remote end.
Start the BERT from the Single tests menu / Bit error test submenu / BERT start(see “Start BERT” on page 60 ). After selection of the channel to be tested (B-channel or D­channel), the ARGUS will send the test pattern, receive it back and evaluate it accordingly.
The displays and operation are, in largest part, similar to those of a BERT on a dial-up connection (see page 58 Bit error test), you simply need not enter call numbers or select a service.
In the case of a BRI access in end-to-end mode (see “Bit error test” on page 58 and on page 66 “BERT wait”), it is
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also possible to run a BERT in the D-channel. In this case, the channel select window will open:
On a BRI access:
With the < ↓ > , select the channel
Selecting a B-channel (e.g 64k)
Enter the B-channel on the keypad. .
Confirm the selected channel and start the BERT.
The ARGUS will display
- the bit pattern (e.g. 2^15)
- the channel / bit rate used (e.g. B02/1984k)
- the remaining test time in Hours: Minutes: Seconds (e.g. 00:24:12)
- the bit errors that have occurred (e.g. 2)
- Synchronicity of the bit pattern (synchron)
- the LOS-counter (e.g. 0) .
Use the <ERROR > softkey to insert artificial bit errors to test the reliability of the BERT. Use the <TM > softkey to
Start Test Manager (see Page 94).
Once it is over, the ARGUS will display the results of the BERT ( see “Start BERT” on page 60 ).
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Loopbox with a permanent circuit
A loopbox can be setup for the permanent circuit by selecting in the Single tests menu / Bit error test submenu / the B-channel LOOP (see “B-channel loop” on page 67).
The Channel select window will open.
On a BRI
When "B-channel" is selected, the Loopbox is setup for both B-channels. If "All framed" is selected, not only both B-channels but the D-channel will also be looped.
Activate loopbox
Loopbox stop
The ARGUS will display the channel used (B01) and the amount of time (h:min:sec) that the Loopbox has been active.
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Switching from permanent circuit mode
Using the < ↓ >, select the Access menu.
The Access menu will open
Using the < ↓ >, select the desired access.
The Access mode menu will open.
Using the < ↓ > , select the desired Access mode (e.g. TE P-MP).
Confirm the selected access mode
The ARGUS will open the Status display
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8.1.3 BRI Passive Trace/Monitor (optional)
In the Pass.trace mode, the ARGUS passively monitors the connected BRI access (signals from the remote end and the signals it sent to the NT itself) . The ARGUS sends the captured D-channel signals via the serial interface to the connected PC, which must be running either ARGUS WINplus or ARGUS WINAnalyse. Neither the S-Bus nor Layer 1 are influenced. In Monitor mode, the ARGUS also monitors signals sent from other TEs to the NT.
With the <↓>, select BRI pass. trace.
Confirm the selected access mode
The ARGUS evaluates the level on the NT-side: OK, << (too low), >> (too high), _ (no level) (Pass. trace not yet active)
Start recording
The Trace LED lights.
The ARGUS displays the number of recorded signals (e.g. 25) and the recording time in h:min:sec. Select < ABORT> : Stop recording.
Select < LISTEN > : and the B-channel select dialog will open. After selecting a B­channel, it will be possible to listen to the voice data on this channel (in the direction Network -----> User).
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Parallel call display in the BRI pass. trace mode
While in trace mode, the ARGUS will search all of the D-channels signals sent for a SETUP. If a SETUP is detected, the <CALL> softkey will be displayed.
Display the call parameters of the last SETUP received.
The ARGUS displays the call direction (Net -> User), the service (e.g. FaxG3), the own number (e.g. 125670), the channel used (e.g. B01) and the destination number (e.g. 02351 901729).
Display of other parameters: Sub-address (SUB), User-User-Info (UUI), DSP messages (if existent), Type of Number (T.O.N) , Numbering plan (NP).
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8.1.4 Recorder
In the Recorder mode, the ARGUS passively monitors the connected BRI access.
The ARGUS records all D-channel signals from the remote end and the signals that it sent to the NT itself, without influencing the access or Layer 1.
Unlike in the BRI pass. trace mode, the recorded D-channel signals will be saved in the ARGUS’s internal Flash memory and not sent to a PC.
The storage is organized as a ring buffer, i.e. as soon as the Flash memory is full, the ARGUS will automatically overwrite the oldest data.
With the <↓>, select
Recorder
Quitting the active recording function. The ARGUS is then in the “Recorder” mode.
Start the Recorder function.
The ARGUS is now in Recorder mode (recording is not yet active!) and will check the levels on the NT side of the BRI access. Level ( << to low, >> to high, OK, __ No level).
Recording started (The Trace LED flashes)
The display shows the number of signals received and the duration of the recording in hours:mínutes:seconds. Using <LISTEN>, switch the speech path onto a B­channel. First the B-channel select dialog will open. After selecting a B-channel, it will be possible to listen to the voice data (in the direction Network ----> User) on this channel.
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Parallel call display while recording
The ARGUS searches all of the D-channel signals sent for a SETUP. If a SETUP is detected, the <CALL> softkey will be displayed. Use <CALL> to display the call parameters of the last SETUP received (see page 39).
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8.1.4.1 Administration of the recorded data
In the Recorder mode, several functions are available for administration of the data saved in the Flash memory:
- PC load all
- Info Flash
- Reset Flash
PC load all
With the PC load all function, the ARGUS will download all of the contents of the Flash memory via the serial interface to the PC, which must be running either WINplus or WINanalyse.
The ARGUS is in "Recorder" mode (Recording not active)
Using < ↓ >, select PC load
all.
Start charging the accumulators
Select < ABORT >to stop the transfer.
After the data has been successfully transferred to the PC, the Flash memory contents can be deleted. Select < YES > to delete the Flash memory contents. Select < ABORT> to quit and not delete the Flash memory contents.
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Info Flash
With this selection, you can read the status of the data in the Flash memory:
- The number of saved sessions
- Free memory in MB and in percent
The ARGUS is in "Recorder" mode (Recording not active)
With the <↓>, select Info
Flash.
Display information on the status of the Flash memory.
Number of sessions stored (e.g 45) and free Flash memory in MB and percent.
Use < > to return to the menu.
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Reset Flash
The Reset Flash function will delete the entire contents of the data Flash memory.
The ARGUS is in "Recorder" mode (Recording not active)
With the < >, select Reset Flash.
Select < YES > to delete the Flash memory contents. The procedure can take several seconds. The ARGUS will show the progress of the detetion as the percentage done.
It is not possible to stop the process of deletion!
Use <ABORT> to return to the previous menu; the contents of the Flash memory will not be deleted.
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8.1 Operation on a POTS (analog) access
8.1.1 POTS terminal
Using the < ↓ >, select POTS interface.
Confirm the access
Using the < ↓ >, select POTS terminal.
The Argus behaves like a POTS (analog) terminal.
Use the <CALL> softkey to setup a call (see Page 92).
The ARGUS will return to the Main menu.
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8.1.2 POTS monitor
Essentially, the POTS (analog) monitor provides a high impedance tap that does not influence the interface. You can listen to the line with the integrated handset without having the ARGUS send on or otherwise influence the interface.
The ARGUS displays the voltage level on the line when it is "on hook“ (not busy).
Start monitoring
The ARGUS displays the voltage (when "off hook"), the number of the caller (when CLIP is supported) and the DTMF characters dialed by both telephone subscribers and the SMSs received
M
onitoring
stop
(optional). Any received DTMF­characters will be appended to the line, which will shift left
for each character once it is full.
An incoming call will be signalled acoustically. Press the < ↓ > -Key to display additional information, if available on the access (e.g. advice of charges). Press < DEL > to clear the display.
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9 Single Tests
9.1 Test the Supplementary Services
The ARGUS checks whether the access under test supports supplementary services in 1TR6 or DSS1 protocol.
9.1.1 Suppl. Services Test for 1TR6 Protocol
(only BRI or U-Interface)
Using the < ↓ > in the Main menu, select the Single tests menu.
The Single tests menu opens
The ARGUS will return to the
the test results
Using the <
↓ >, select
Supp.serv.test.
Start test
The test results are displayed automatically: + = suppl. service supported
- = suppl. service not supported Use < ↓ > to scroll through
Sperre Blocking enabled for outgoing calls
AWS1 Call forwarding type 1 enabled (continuous)
AWS2 Call forwarding type 2 enabled (case by case)
Anschluss
Access belongs to a Closed Users Group
GBG
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Geb.anzeige Advice of charge
Rufnummern-IdSetup call number identifier
- against malicious calls
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9.1.2 Suppl.service interrogation in DSS1
In the Single tests menu, using the < ↓ >, select Supp.serv.test.
Use the keypad to enter the "Own number" or select if from the speed-dialing memory (the number of the access under test) (see “Saving Call Numbers” on page 129.). The ARGUS will test the availability of the supplementary service (in part by placing a call to itself).
Using the < ↓ > , select the service which should be used for the supplementary services test.
9 Single Tests
Confirm the service. Enter the B-channel on the
keypad. By default, the channel last used will be suggested. If you enter an *, the ARGUS will choose any B-channel that is free.
Confirm the B-channel
Use the < ↓ > to select the supplementary service (e.g. TP) that you want the ARGUS to check whether it is supported on the access under test.
Start test
The ARGUS will display the results of the test once it is done:
+ = suppl. service supported
- = suppl. service not supported
Use the <
> to scroll through the test results.
If you press the < > , the ARGUS will return to the
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previous display (this applies for all displays).
Test Comments
TP The ARGUS tests the TP (Terminal Portability)
supplementary service by making a self call.
HOLD The ARGUS tests the HOLD supplementary
service by making a self call.
CLIP
(CLIP, CLIR, COLP, COLR )
In this test, the ARGUS checks whether the 4 supplementary services CLIP,CLIR, COLP and COLR are supported. To do so, the ARGUS will setup as many as three calls to itself. CLIP: Will the calling subscriber's number be displayed at the called subscriber? (t = CLIP temporarily available
p = CLIP permanently available) CLIR: Will the display of the calling
subscriber's number at the called subscriber be suppressed or is it possible to temporarily suppress the display?
If the ARGUS displays an *, it is not possible to determine the availability of the service, since
no CLIP has been setup. (t = CLIR temporarily available
p = CLIR permanently available) COLP: Will the call number of the subscriber
who answered be displayed on the caller's phone? COLR: Will the display of the call number of
the subscriber who answered be suppressed on the caller's phone or is it possible to temporarily suppress the display?
If the ARGUS displays an *, it is not possible to determine the availability of the service, since no COLP has been setup.
The suppl. services pairs CLIP and CLIR as well as COLP and COLR will be tested. If CLIR or COLR is setup permanently, it is not possible to make a clear assessment.
DDI Can a caller directly dial in to an extension on
the PBX access under test?
MSN Is the supplemental service MSN available?
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CF
(CFU, CFB, CFNR)
In this test, the ARGUS checks whether the 3 supplementary services CFU, CFB and CFNR are supported. CFU: Can this access immediately forward an incoming call? CFB: Can this access forward an incoming call when it is busy; in other words does it support Call Forwarding Busy? CFNR: Can this access forward an incoming call when it is not answered?
The CF test attempts to setup a call diversion to the call number that is in the memory location for “remote call number 1” (see “Saving Call Numbers” on page 129). The CF test cannot be performed, if this location does not contain a valid call number to which it is possible to divert a call.
CW Does the access under test support call
waiting?
CCBS Will the access under test automatically recall
a remote subscriber, if the number called was busy?
CCNR Will the access under test automatically recall
a remote subscriber if the call was not answered?
MCID Does the access tested allow identification of
malicious callers (call tracing)?
3pty Does the access under test support a three-
party conference call? For this test, you need the assistance of a remote subscriber, whose call number must be entered.
ECT Is an explicit call transfer supported by the
access under test? For this test, you need the assistance of a remote subscriber, whose call number must be entered.
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AOC The ARGUS checks whether the charges can
be sent to the access under test. The test uses a call to oneself to check both AOC-D (AOC during a call) and AOC-E (AOC at the end of a call).
SUB A call is made to oneself and answered to
check the transfer of the sub-address in both directions. Are sub-addresses supported on the access under test?
UUS Does the access under test support the
transfer of user data?
CUG The ARGUS then uses a self call to check
whether the access under test belongs to a closed user group.
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9.1.3 Suppl. Services Tests – Error messages
If an error occurs during the Supplementary Services Tests or if it is not possible to setup a call, the ARGUS will display the corresponding error code (e.g. 28). Use < ↓ > to scroll through.
In the example, the error belongs to the error class "wrong or invalid number". In the table below, you will find that this is an error from the network and that it reports that the call number was incomplete or in the wrong call number format (see “CAUSE-Messages – DSS1 Protocol” on page 140.).
Distributing the error codes into error classes:
Error class
Description Cause (from
network) 1 TR6 DSS1
No or another
A
access
Wrong or invalid
B
number
One or more
C
B-channels busy
Wrong service 3 49,57,58,63
D
__ __ 201,204,205,
53, 56 1,2,3,18,21
10,33,59 17,34,47 ___
22,28,88
65,70,79
Cause ARGUS internal
210,220
152,161,162, 199
___
For further information regarding error codes:“ARGUS Error Messages” on page 144, “CAUSE-Messages – DSS1 Protocol” on page 140 and “CAUSE-Messages – 1TR6 Protocol” on page 142.
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9.2 Service check
The ARGUS checks, which of the following services are supported by the access under test:
Service Name in the
ARGUS display / abbreviation
Language Language / Lang Unrestricted Digital
Information
3.1 kHz Audio Tel.analog / Tel. 7 kHz Audio 7 kHz audio / 7 kHz Unrestricted Digital
Information with tones / Display
Telephony Tel.ISDN / Tel. Facsimile Group 2/3 Fax G3 / FaxG3 Facsimile Group 4 Class 1 Fax G4 / FaxG4 Teletex service basis and
mixed mode and facsimile service Group 4 Classes II and III
Teletex Service basis mode
International inter working for Videotex
UDI 64kBit / UDI 64
UDI+TA / UDI TA
Mixed Mode / Mixed
Teletex / Ttx64
Videotex
Telex Telex OSI application according
to X.200 7 kHz Telephony Tel.7kHz / Tel7k Video Telephony,
first connection Video Telephony,
second connection Three user-specific
Services (see “Services” on page
117.)
The test runs automatically.
For each service, the ARGUS will place a call to itself (to the access under test). However, the call will not be answered
OSI
Videotel.1 / Vid.1
Videotel.2 / Vid.2
Userspec.1 / Userspec.2 / Userspec.3 /
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so no charges will be incurred.
There are PBXs that use separate call numbers for incoming and outgoing calls. In this case, for the Service checks, you can enter a “remote” call number that corresponds to the “own” number that is not stored in the ARGUS.
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In the Single tests menu,
< use ↓ to select > Service test.
Enter the Own number of the access
under test
If the Service check should extend outside of the
local exchange, it is possible to perform the Service check in an end-to-end mode. In this case, you must enter the remote call number for a second terminal device.
The ARGUS will then automatically check whether the remote terminal can accept the call under the various services – in other words, whether it is “compatible” with these services.
In the test results, the second part (second +, - or *) refers to the answer from the remote exchange.
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Test results:
Interpreting the test results:
The ARGUS will display the results of the test once it is done. Use the < ↓ > to scroll through the test results. The ARGUS makes a
distinction between outgoing calls (the first +, - or *) and incoming calls (the second +, - or *).
+ = Service supported
- = Service not supported * A definite statement cannot
be given due to the adjacent error code.
Displayed Description + + The self call functions OK or the remote end can
take the call for this service
+ - Call was sent successfully, however, it was rejected
on the remote end due to missing authorization. (Error class D in a B-channel message e.g. in a SETUP_ACK or CALL_SENT)
- An outgoing call with this service is not possible
(Error class D without a B-channel message)
+ * Call was sent successfully, the call back or call to
the remote end failed (e.g., remote end busy or no B-channel available for the call back). (Error class B, C or E in a B-channel message)
* Wrong number, no B-channel available or other
error
(Error class B, C or E without a B-channel message) If the outgoing call is not successful, it is not possible to make a statement about an incoming call. Therefore, you will never see “- +” or “- *” on the display.
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Example:
For outgoing, the Fax G4 service is OK. No statement is possible about incoming. The error code 63 indicates the cause of the error which has occurred (see tables in appendix). In this case, it is recommended that you have someone place a call to the access under test using this service. The Mixed Mode service is possible in both directions.
If an error of error class A occurs (see “Suppl. Services Tests – Error messages” on page 53.) the Service test will be aborted.
An error of any other error class will coded in decimal (in the example above 63), assigned to the respective service and then displayed.
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9.3 Bit error test
The bit error rate test (BERT = Bit Error Rate Test) serves to check the transmission quality of the access circuit.
As a rule, the network operator will guarantee an average error rate of 1 x 10-7, in other words in long-term operation
1 bit error in 10 million transmitted bits. A higher bit error rate will be especially noticeable in transmitting data.
The application program detects the errors in the data blocks transmitted and requests that the remote partner send them again, which reduces the effective throughput of the ISDN connection.
In the bit error test, the tester establishes an ISDN connection to a remote tester or places a call to itself, sends a standardized (quasi-) random number string and compares the received data with that which was sent. The individual bit errors are summed and depending on the test procedure and equipment evaluated in accordance with the ITU Guideline G.821.
During the test, the ARGUS counts the bit errors and after the test is done it calculates the bit error rate and other parameters in accordance with G.821. Since the bit error test checks both B-channels in both directions at the same time, both B-channels are required.
As a rule, the quality of the network operator’s access circuits is quite good. Therefore, no bit errors should occur in a 1-minute test.
However, if an error occurs, the test should be repeated with a measurement time of 15 minutes to achieve higher statistical precision. The access circuit is heavily distorted, if more than 10 bit errors occur within a test period of 15 minutes.
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Contact the network operator or the supplier of the PBX equipment and ask them to test your access circuit. The BERT can be performed in three different ways:
1. BERT in an extended call to oneself
A remote number is not needed, since the ISDN connection is setup to oneself. In this case, the ARGUS requires two B-channels for the test.
2. BERT with a loopbox
A loopbox (e.g., another member of the ARGUS family of testers at the remote end) is required. The test uses one B-channel.
3. BERT end-to-end
This test requires a waiting remote tester such as an ARGUS in the BERT wait mode .(see page 66 BERT wait) A bit pattern is sent to this tester.
Independent of the received bit pattern, the remote tester uses the same algorithm to generate a bit-pattern that it sends back.
Therefore, both directions are tested independently.
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9.3.1 Start BERT
The following parameters are required for the BERT:
- Duration of the BERT (default setting = 1 minute)
- Error level: If the bit error rate exceeds this limit, the
ARGUS will display the test result NO. If the bit error rate is less than this limit, the ARGUS will display an OK
(default setting = 10
-05
)
- HRX value in % (hypothetical reference connection see
ITU-T G.821) (default setting = 15%)
- Bit pattern, which will be sent during the test
(default setting = 215-1)
The parameters can be changed individually and saved (see “Configuration: BERT” on page 119.).
In the Single tests menu, use the < > to select Bit error test.
Use < > to select BERT
start.
Enter your Own number to perform the
BERT in an extended call to oneself (two B-channels). ora remote number for a BERT to a loopbox (one B-channel) or end-to-end
Confirm the number Using the < ↓ > , select the service which should be used for the BERT.
Confirm the service.
Enter the B-channel on the keypad. If you enter an *, the ARGUS will choose any B­channel that is free.
BERT start
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After the ARGUS has setup the connection and synchronized the send and receive directions, it will display the bit pattern, the B­channel used (e.g. B02), the remaining test time in h:min:sec, the number of bit errors that have occurred (e.g. 3), the synchronicity of the bit pattern (synchronous or asynchronous) and the LOS-counter (e.g. 5).
If you press < ERROR > , the ARGUS will generate an artificial bit error, which can be used to test the reliability of the measurement (in particular for end-to-end tests). Press < TM > to start the Test Manager
(see “Test Manager” on page 94. )
Press < ABORT > to stop the BERT 0 -Key: Restarts the bit error test. The test time and number of bit errors will be reset.
When a bit error is detected, this will be signaled by a brief alarm; in the event that the synchronisation is lost, a constant alarm will sound ((see page 127 Alarm bell)).
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After the test time is over, the ARGUS will display the cause and the location which initiated the disconnect. If the test ran normally, the ARGUS will display “Active clearing” on this line.
The test results display:
The bit pattern (e.g. 2^15), B-channel used (e.g. 02), Transferred data in KBit (e.g. 10309 KB, K= 1024* bits),
The number of bit errors (e.g.10), The bit error rate (e.g. 9.7E-
07 = 9.7·10-7 = 0.00000097), The evaluation of the results depends on the error threshold (OK).
Display of other characteristic values (in accordance with ITU-T G.821) All values are given in percentages. The ARGUS evaluates whether the test results satisfy the limits specified in the CCITT G.821/G.826 under consideration of the reference connection HRX (displaying OK or NO).
-Key: Scroll
<MENU>: The ARGUS returns to the BERT menu.
HRX Defines the hypothetical reference connection
EFS Error Free Seconds
The number of seconds in which no error occurred.
ES821 Errored Seconds
The number of seconds in which one or more errors occurred.
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SES821 Severely Errored Seconds
The number of seconds in which the bit error rate is >10-3. In one second, 64,000 bits are transferred, thus BitERror=10-3 equates to 64 bit errors.
US Unavailable Seconds
The number of sequentially adjacent seconds (at least 9 sec) in which BER>10-3.
AS Available Seconds
The number of sequentially adjacent seconds (at least 9 sec) in which BER<10-3.
DM Degraded Minutes
The number of minutes in which the bit error rate is >10-6.
In one minute, 3,840,000 bits are transferred, thus a BER = 10
-6
corresponds to 3.84 bit errors (3 errors =
NO (no DMs), 4 errors = OK (DM)).
9 Single Tests
LOS Loss of Synchronisation
Synchronisation is lost at an error rate > or = 20% within a second. The absolute number of synchronisation losses will be shown.
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9.3.1.1 BERT - saving
The ARGUS can store the results of several BERTs.
The ARGUS saves the results together with the date, time (if the network supplies the date and time) and the call number of the access under test (if this number has been entered as the "own" number in the speed-dialing memory) under the next free record number (see “Automatic Test” on page
99.). If all of the records are used, the ARGUS will return to the Autom. Test dialog and request permission to overwrite the oldest test results.
The ARGUS is displaying the result window.
-Key
Press <YES> BERT -
saving
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9.3.1.2 Display the saved BERT results
see “Display Results” on page 104.
Use the < > in the Main menu to select Automatic tests.
Use the < ↓ > to select the record with the saved BERT results.
9 Single Tests
Using the < >, select the Display result.
The ARGUS will first display the status of the access under test.
Display the stored results
Use the ↓ -Key to scroll through the results.
Quit the results display.
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9.3.2 BERT wait
In BERT wait mode, the ARGUS will wait for the BERT at the remote end which is necessary for an end-to-end test:
In the Single tests menu, use the < > to select Bit error test.
Open the Bit error test menu.
Using the < >, select
BERT wait.
Activate "BERT wait“
The ARGUS first waits for a call and then sets up the connection. During the connection, the received bit pattern will be evaluated and another bit
Operating mode BERT wait
pattern will be sent. If you press <MENU>, the ARGUS will return to the Main menu; the test "BERT wait“ remains active. In the Main menu, if < TM > is pressed, the ARGUS will return to the display "BERT, Wait active", see Page 98. < TM >: Calls the Test Manager (Page 94)
The ARGUS displays that will appear are the same as those in Chapter 9.3.1 Start BERT .
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9.3.3 B-channel loop
B-channel loop mode is required in order to run a bit error test using a loopbox at the remote end as well as to test permanent circuits.
Use the < > to select B­channel loop .
Activate the "B-channel LOOP“
The ARGUS will wait for a call. Any incoming call (regardless of the service) will be taken immediately. The ARGUS will switch a
Operating mode B-channel
loop back in the B-channel that is specified by the exchange and then send the received bit pattern back to the caller/sender.
If you press < MENU >, the ARGUS will return to the Main menu; the test "B-channel-LOOP “ remains active. In the Main menu, if < TM > is pressed, the ARGUS will return to "B-channel-LOOP, Wait active", see Page 98. From this menu, you can start a second B-channel loop connection (this is also possible using < TM > ). < TM >: Call the Test Manager
If the ARGUS takes a call, it will open the B-LOOP connect. window, which is similar to the normal connection window:
The ARGUS will display the caller's number (e.g. 2351
90700) , the B-channel used (e.g. B01) and the number dialed (e.g. 907070).
-Key: Display additional
information (e.g. UUS…)
B-channel loop Connection stop
Operating mode
< TM >: Call the Test Manager < Menu >: The ARGUS
returns to the main menu. B-channel LOOP still active
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9.4 X.31 Test
The ARGUS will either perform a “Manual X.31 Test” or an “Automatic X.31 Test”: In the case of an automatic test, the ARGUS will first setup the D-channel connection and then begin setting up the X.31 connection. Afterwards, the ARGUS will automatically clear the connection and display the results. In the case of a manual test, the ARGUS will setup a D­channel connection and an X.31 connection. The duration of this connection is determined by the user (or the opposing end). For the duration of the connection, the ARGUS will repeatedly send a predefined data packet. The ARGUS will count all of the data packets sent and received and will display (where possible) the contents of the data packets received.
9.4.1 Automatic X.31-Test
The “X.31 Automatic, D-channel” test consists of two steps: First step: The ARGUS tests whether it is possible to
access the X.25 service via the D-channel on the BRI access under test. The ARGUS sequentially checks all the TEIs from 0 to 63. All the TEIs with which the X.31 service is possible on Layer 2, will be displayed.
Second step: For each TEI with which X.31 is possible on
Layer 2, a CALL_REQ packet will be sent and then the ARGUS will wait for an answer. Beforehand, the ARGUS will request the entry of the X.25 access number, which will be saved in speed-dialling memory under X.31 test number (“Saving Call Numbers” on page 129). With the entry of the X.25 access number, you can - if you wish - select a logical channel (LCN) other than the default.
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In the Single tests menu,
use
< ↓ > to select the X.31 test.
Use < > to select
Automatically.
Start test
The test can take up to 4
minutes (a rotating bar will
be displayed). Beginning on
the left, the ARGUS will
display the TEI currently
being tested followed by the
one previously tested and its
result:
+ = X.31 is available for this
TEI
- = X.31 is not available for
this TEI
Once the test has ended, the
ARGUS will show whether
the X.31 service is available
for Layer 3 for the TEIs
found in Step 1.
Using the <↓>, scroll through
the results.
Test results:
TEI 02 = the first valid TEI value is 02. + + = Both test steps were successful + - = the first test step was successful, the second step
not In this case, the ARGUS will display the relevant X.31 cause for the failure (in the example above: 13) and an associated diagnostic code (in the example:
67), if there is one (see “X.31 Test – Error
messages” on page 145.). If the X.31 service is not supported, the ARGUS will report "X.31 (D) n. impl.“.
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9.4.2 Manual X.31 Test
In this test variant, the ARGUS first requests a TEI, LCN and an X.31 number (The ARGUS uses the TEI and LCN values stored in the Configuration/X.31 as default values - seePage
125) and the call number saved as the X.31 number in the speed-dialing memory (see Page 129). If a “ ** ” is entered for the TEI, the ARGUS will automatically determine a TEI. Using the first TEI with which X.31 is possible, the ARGUS will begin to setup a connection.
In the Single tests menu,
< use ↓ > to select the X.31 test
.
With the < >, select Manual.
The ARGUS displays the stored TEI. You can edit the TEI from the keypad; If you enter **,
the ARGUS will automatically determine a TEI. < DEL >: Delete the TEI
The ARGUS displays the stored LCN. It is possible to edit the LCN from the keypad.
Display of X.31 Number (see speed-dialing memory Page 129). It can be edited from the keypad.
Setup a X.31 connection
The ARGUS will display the LCN, TEI and X.31 number (e.g. 0263110 00091258).If you select <DATA>, predefined data packets will be sent.
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-Key
9 Single Tests
The ARGUS will count the data packets sent and received and will display (where possible) the contents of the data packets received.
The ARGUS will display the number of packets sent (e.g.
3), the number of packets received (15) and their contents (in ASCII).
The contents of the received data packet (in hexadecimal)
The connection will be maintained until the user or the opposing end clears it. When the X.31 connection is cleared, the ARGUS will automatically clear the D­channel connection.
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9.5 CF Interrogation
The ARGUS will check whether a call diversion has been setup in the exchange for the access under test (BRI or U­Interface). The type of diversion (CFU, CFNR or CFB ) and the call diversion's service will be shown in the display. The display is limited to a maximum of 10 call diversions for all of the MSNs. The ARGUS will count any additionally setup call diversions. The ARGUS can clear any call diversion setup in the exchange.
In the Single tests menu, use the < > to select CF
interrogat.
Start the CF interrogation; The test can take several seconds.
The ARGUS displays the type (e.g. CFU) and service (e.g. Spch) of the call diversion, which in this example is the third of a total of nine found (3/09). The number 2351919658 is diverted to 14418. The ↓ -Key is used to scroll though the display. Press < NEW > to repeat the CF interrogation.
Delete a call diversion
Security query
Press < ALL > to delete all call diversions. The ARGUS will delete the displayed number in the exchange.
If the call diversion cannot be cleared, the ARGUS will report: "Call diversion not changeable!".
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Some PBXs or exchanges do not permit the use of the mechanism used (by the ARGUS) for the interrogation of the call diversions for all MSNs or they return a negative acknowledgment of the interrogation of call diversions, implying that no call diversions have been setup. In the event of a negative acknowledgment, the ARGUS will, therefore, request that the Own MSN be entered. The call diversion interrogation will be repeated MSN-specific. Naturally, in this case, the results of the interrogation of the call diversion only apply for the entered MSN and not for the entire access.
Abbreviations used for the services and service groups on the display:
Basic Service Abbreviation
All services All Voice (speech) Spch Unrestricted digital information UDI Audio 3.1 kHz A3k1H Audio 7 kHz A7khz Telephony 3.1 kHz Tel31 Teletext TTX Fax Group 4 FaxG4 Video syntax based ViSyB Video Telephony ViTel Telefax Groups 2/3 FaxG3 Telephony 7 kHz Tel7 UDI 64 kBit UDI Unknown Basic Service Unkno
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9.6 CF - Activation
Using the ARGUS, call diversions can be setup in the exchange (BRI or U-Interface).
In the Single tests menu, use the < > to select CF activation.
Using the <> select the
type of call diversion (e.g. SPch).
Using the < ↓ > select the type of call diversion (e.g.
CFU).
Under "Own number", enter the number which should be diverted. Press <DEL > to delete the digit before the cursor.
Enter the number to which calls should be diverted.
Setup the call diversion
The ARGUS returns to the Single tests menu.
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9.7 CF - Delete
Using the ARGUS, selected call diversions can be deleted/ cleared in the exchange (BRI or U-Interface).
In the Single tests menu, use the <> to select CF delete.
Using the < >, select the
service of the call diversion
(e.g. SPch).
Using the < > select the type of call diversion (e.g. CFU).
Under "Own number", enter the number which should no longer be diverted. Press <DEL > to delete the digit before the cursor.
Delete a call diversion
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9.8 MSN Interrogation (only on a BRI with DSS1)
On a P-MP access using the DSS1 protocol, the ARGUS will determine the MSNs of the access under test. It will display a maximum of 10 call numbers. Depending on the Type of Number (TON), the ARGUS will display the call numbers in different versions:
only the MSN (without area code)
with national area code without leading the “0”
with country code without leading the “00”
complete call number
In order to interrogate the MSNs, the access under test must support the supplementary service “Call Forwarding (CF)”.
In the Single tests menu, use the < > to select MSN
interrogat.
Start the MSN interrogation
In this example, the ARGUS displays the first MSN (2351919658) of a total of three found (1/03). Using the < ↓>, scroll through the results. Press < NEW > to repeat the MSN interrogation.
Due to differences in the protocol, some exchanges do not support MSN interrogation. In this case, the ARGUS will report: MSN interrogation not possible!
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9.9 Time measuring
The ARGUS measures three different times:
- Connection setup time
- Propagation time of the data and
- Transit time differential (interchannel delay) of the
data in two B-channels.
Time measurements on a BRI or U-Interface access are only possible in TE mode.
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9.9.1 Connection setup time
The ARGUS places an outgoing call and measures the time between sending the SETUP and receiving the ALERT or CONN. The ARGUS disconnects automatically as soon as the measurement is completed.
In the Single tests menu, use the < ↓ > to select Time measuring.
Use the < ↓ > to select
Conn.setup time.
Enter - or select from the speed-dialing memory - the call number for the outgoing call
Use the < ↓ > to select the service.
Enter the B-channel on the keypad.
Perform measurement
The ARGUS will display the
connection setup time in seconds and the received L3 messages (end of connection setup). If the ARGUS cannot perform the measurement (e.g.
because the call number entered was wrong or no B­channel was free) the corresponding cause will be displayed.
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9.9.2 Time measurement: B-channel delay
The ARGUS places a call to itself (self call) or to a remote loopbox and measures the propagation delay for the data in the selected B-channel. The ARGUS disconnects automatically as soon as the measurement is completed.
In the Single tests menu, use
the < > to select Time
measuring.
Use the < > to choose
Interchan.dela.
Enter own number for self
calls or remote number for
connections to a remote
loopbox.
Use the < ↓ > to select the
service.
Enter the B-channel on the
keypad.
Perform measurement
The ARGUS displays the
propagation delay in
milliseconds and in bits
(multiples of the time required
to send a bit at 64 kBit/s).
(The time for sending 1 bit at
64 kBit/s = approx. 15.26 µs.)
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Press <ABORT> to stop the
measurement.
If the ARGUS cannot perform the measurement, e.g. because the call number entered was wrong or no B­channel was free, the corresponding cause will be displayed.
When it is connected to a loopbox, if the ARGUS does not receive the data back within 13 seconds, it will display the message “No LOOP”.
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9.9.3 Time measurement: Interchannel delay
The ARGUS establishes two separate connections to a remote loopbox. The loopbox sends the respective B­channel data back on the same channel. The ARGUS measures the propagation delay for the data on each of the B-channels and determines the difference between the two propagation delays (interchannel delay).
The ARGUS disconnects automatically as soon as the measurement is completed.
In the Single tests menu, use
the < ↓ > to select Time
measuring.
Use the < ↓ > to select
Interchan.delay.
Enter - or select from the
speed-dialing memory - the
call number of the loopbox
Use the < ↓ > to select the
service.
Perform measurement
The ARGUS displays the
propagation delay in
milliseconds and in bits
(multiples of the time required
to send a bit at 64 kBit/s, it
takes 15.26 µsec to send a
bit).
The measurement will be
repeated in cycles.
Press <ABORT> to stop the
measurement.
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If the ARGUS cannot perform the measurement - e.g. because the call number entered was wrong or no B­channel was free - the corresponding cause will be displayed.
When it is connected to a loopbox, if the ARGUS does not receive the data back within 13 seconds, it will display the message “No LOOP”.
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10 Connection
10.1 Setting up an ISDN connection
a) The ARGUS can setup a connection for the following
services:
Service Name in the
ARGUS display / abbreviation
Language Language / Lang
Unrestricted Digital Information
3.1 kHz Audio Tel.analog / Tel.
7 kHz Audio 7 kHz audio / 7 kHz
Unrestricted Digital Information with tones / Display
Telephony Tel.ISDN / Tel.
Facsimile Group 2/3 Fax G3 / FaxG3
Facsimile Group 4 Class 1 Fax G4 / FaxG4
Teletex service basis and mixed mode and facsimile service Group 4 Classes II and III
Teletex Service basis mode Teletex / Ttx64
UDI 64kBit / UDI 64
UDI+TA / UDI TA
Mixed Mode / Mixed
International inter working for Videotex
Telex Telex / Telex
OSI application according to X.200
7 kHz Telephony Tel.7kHz / Tel7k
Video Telephony, first connection
Video Telephony, second connection
Additional three user-specific services (see “Services” on page 117.)
Videotex / Vidtx
OSI / OSI
Videotel.1 / Vid.1
Videotel.2 / Vid.2
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b) The integrated handset can be used as a phone during
a telephone connection.
c) When an ISDN connection is setup, pressing the
number keys (0-9) or the * or # will generate and send the corresponding DTMF tones.
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Procedure for an Outgoing Call (ISDN)
1) Overlap sending:
In overlap sending, the digits of the call number are sent individually.
In the Single tests menu, use the <↓ > to select
Phone / connec.
Use the < ↓ > to select Overlap sending. If the
-Key is pressed the
ARGUS will open the
Connection menu.
-Key
Using the < ↓ > select the service that should be used for the connection.
Disconnect
Using the keypad, enter the B-channel (by default, the last B-channel used will be suggested) When entering a new B­channel, first press
<DEL>.
If you enter an *, the ARGUS will choose any B-channel that is free. The ARGUS will show whether the B-channel is available.
Setup the connection
Enter the number on the keypad. The ARGUS displays the service (e.g. Tel.), the own number (90700), the B-channel (B02) and the number called (01191). The ↓ -Key is used to scroll though the information. <TM >: to start the Test Manager (Page 94).
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-Key
-Key
The connection is setup using B-channel 2.
The ARGUS will display additional information (if there is any)
The ARGUS displays the sub-address of the caller (808076) and the destination address (01191).
Display of the
- User-to-User Information
- Display Information
- Type of number (TON)
- Numbering Plan (NP)
-Key
- Advice of charges: If the charges are not given in units, rather directly as currency, the ARGUS will display the current charges in currency. If, in DSS1, the call charges are not provided in accordance with the ETS 300 182 standard, rather in the form of the information element DISPLAY (DSP), the ARGUS will display the DISPLAY message's character string.
Disconnect
The ARGUS displays the cause of the disconnect. (see page 90 Clearing down an ISDN connection)
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Note regarding the entry of the call number
Separate the extension from the access number with a # (e.g. 02351 / 9070-20 is entered on the ARGUS as: 023519070 #20). For an outgoing call, the ARGUS uses the entire call number (without #) as the number called (CDPN or DAD) and, for the calling number, only the extension (DSS1-CGPN or 1TR6-OAD).
A ‘#‘ at the beginning of a call number is treated as a valid character. A ‘#’ at the end of the own call number instructs the ARGUS to not send the caller’s number for outgoing calls (CGPN or OAD).
Simplified overlap signaling using the telephone key
If you press the -Key, the ARGUS will open the Connection/Overlap window directly regardless of the currently open menu.
If you press the -Key again, you will hear the dial tone. Once you enter a call number, the connection will be setup.
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2) Enblock
In en-bloc signalling, the ARGUS sends the entire dialing information in one block. The number is dialed from the call number memory (see “Saving Call Numbers” on page 129.).
In the Single tests menu, use the <↓ > to select Phone / connec.
Use the < ↓ > to select
Enblock signalling.
Use the -Key to select the number from the call
number memory or reenter the number on the keypad. Press <DEL> to delete a digit.
-Key
If the -Key is pressed the ARGUS will open the Connection menu.
Using the < ↓ > select the service that should be used for the connection.
Enter the B-channel on the keypad. (See Overlap sending for entries)
Start the dialing procedure
(for more displays and information see Overlap sending)
Disconnect
The ARGUS displays the cause of the disconnect. (see page 90 Clearing down an ISDN connection)
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Procedure for an Incoming Call (ISDN)
An incoming call can be taken at any time even when a test (e.g. BERT) is in process (see “Simultaneously Starting Several Tests” on page 95.).
The ARGUS will signal an incoming call with an audible tone and a message on the display.
On a P-MP access, you can use the Call acceptance (see “Call Acceptance” on page 118.) function to configure the ARGUS to only signal incoming calls which are addressed to the MSN that corresponds to your own call number. This function can only be used when your own call number has been entered into the ARGUS’s speed-dialing memory (see “Saving Call Numbers” on page 129.) and the incoming call has a destination MSN.
The ARGUS displays the service (Tel.), the number of the caller (02351907070), the B-channel used (B01) and the number called (90700). The ARGUS will display the
Reject call
number called (DDI) completely, if the Alerting mode is set to manual . (see Page 116).
-Key: View additional
information (if available)
Accepting call
Use the < TM > softkey to start the Test Manager. (see Page 94). Use the < ↓ > to view additional information.
Clearing the connection
Charge information in NT mode (optional):
In NT mode, the ARGUS will – for incoming calls – send advice of charges in accordance with DSS1 as units and as currency (in euro).
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10.2 Clearing down an ISDN connection
To clear down the connection, press <CLEAR>
or the Press the
-Key
The ARGUS will display the cause (see the table below) of the disconnect (e.g. Normal clearing) and the location where the cause occurred (e.g. subscriber).
-Key: View additional information (e.g. charges, if available) < TM >: Open the Test Manager
The ARGUS returns to the Single tests menu.
The following causes are shown in clear text:
Cause Display Explanation 255 Active clearing Clearing User actively initiated
the disconnection
Long 0 Normal clearing Cause element with Long 0 is
mostly used by 1TR6
01 Unalloc. number “No access under this call
number” is signaled
16 Norm. clearing Normal disconnect 17 User busy The number called is busy 18 No user respond No answer from the number
called
19 Call.time XX Call time too long 21 Call reject The call is actively rejected
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28 Wrong number Wrong call number format or
call number is incomplete
31 Norm. clearing Unspecified “normal class”
(Dummy)
34 No B-chan.avail. No circuit / B-channel
available
44 Req.chan.unavail Requested B-channel not
available
50 Req.fac.not subs Requested supplementary
service (facility) not subscribed
57 BC not authoriz. Requested bearer capability is
not enabled
63 Srv./opt.n.avail Unspecified for “Service
not available” or “Option not available”
69 Req.fac.not impl. Requested facility is not
supported
88 Incompat.
Incompatible destination
Objectives
102 Timer expired Error handling routine started
due to time-out
111 Protocol error Unspecified for ”protocol error
class”
127 Interworking err Unspecified for
“interworking class”
Other causes are not shown in clear text, rather as decimal codes (see Appendix B and C).
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10.3 Operation on a POTS (analog) access
Procedure for an Outgoing Call (POTS)
The ARGUS sets up a connection to another terminal. If the terminal is a telephone, the handset integrated in the ARGUS can be used to hold a conversation.
In the Main menu, use the
< ↓ > to select Single tests
Setup the connection
Enter the number on the keypad. Each of the number's digits will be dialed individually. The ARGUS will display the number dialed. As soon as the remote party answers, a voice connection will be set up. The ARGUS will display the charges, if the information is available on the access under test.
< R >: Generate a
FLASH signal
< MEM >: Select the number from the call number memory or reenter the number on the keypad.
Use the < ↓ > to scroll. Press <DEL> to delete a digit. The last number dialed will always be used as the default - simplified last number redial.
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The ARGUS sends the complete dialing information together.
Disconnect
Simplified overlap signaling using the telephone key
If you press the -Key, the ARGUS will open the POTS telephony window directly regardless of the currently open menu. Once the call number is entered, the call will be setup.
Procedure for an Incoming Call (POTS)
The ARGUS signals an incoming call both audibly and on the display.
If the access supports CLIP, the ARGUS will display the number of the caller (see “POTS CLIP” on page 123).
Or press the
Accepting call
-Key < R >: Generates a FLASH
signal
Disconnect
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11 Test Manager
The ARGUS can simultaneously start fully independent BRI or U-interface access tests or “connections”. As an example, a BERT can be run at the same time that you make a phone call. The individual tests or “connections” use resources.
All of the tests that have been started will be administered by the Test Manager. Using the Test Manager you can start new tests, switch between tests running in parallel or terminate all of the tests that are currently running.
In the Main menu, use the <
> to select the
Test Manager.
Open the Test Manager
If the ARGUS is in the Connections or Single tests menu (or in a test), the Test Manager can be opened using the 6-Key or via the <TM> softkey.
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11.1 Simultaneously Starting Several Tests
Starting a new test or connection during an existing connection
Example: There is a connection on B­channel 1.
During this connection, the Test Manager can be started
by pressing the -Key or the <TM> softkey.
The ARGUS displays the number of existing connections (-/01). Use the < ↓ > to select Start new one. The ARGUS returns to the main menu.
Use the < ↓ > to select Single tests.
Use the < ↓ > to select the desired test (e.g. bit error rate test) .
Start test
(Still connected)
For information on the operation of bit error tests, see Page 60
The ARGUS opens to the Test Manager.
Use the < ↓ > to select
Outgo.connect.
The connection was started first (1/02), there are 2 connections / tests (1/02). The connection uses B­channel 1 (B01).
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The ARGUS will return to the Connection window.
If a test (or connection) is cancelled/cleared, the ARGUS will return to the Test Manager if there is another test (or connection) running in the background.
Some tests use so many resources that they cannot be run in every combination with other tests. In this case, the ARGUS will display the message “Test not possible at this time”.
Test/ Connection
Number of times that this test/connection can be started at the same
It is possible to change to another test
time
Incoming call 2 Yes
Outgoing call 2 Yes
BERT 2 Yes
LOOP 2 Yes
Service Tests 1 No
Suppl.serv.test 1 No
Time
1 No
measurement
X.31 Test 1 No
CF
1 No
Interrogation
Auto. Test 1
No When the Auto. Test is running all of the resources are in use and no other tests or connections are possible
BRI level 1 No
POTS voltage 1 No
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Accepting an incoming call/connection when a test is running.
The ARGUS signals an incoming call both audibly and on the display (see Chap. 10.1 Setting up an ISDN connection page 83). The incoming call can be accepted without influencing the currently running test. If either the B-channel loop or BERT wait function is active, the call will be accepted automatically.
The manner that multiple connections are handled is illustrated in the following example of "Accepting an incoming call during a BERT", but it is identical for all other tests.
While running a BERT, the ARGUS displays information about an incoming call. <REJECT >: To reject the incoming call. The ARGUS will return to the BERT.
or
Accepting call
The BERT will continue in the background.
To switch to the BERT
-Key
Use the < ↓ > to select
BERT outgoing.
The ARGUS jumps to the BERT
The connection is still active in the background, the handset is still switched to the connection.
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If available, the internal handset will be assigned to the currently started (voice) connection. The assignment of the handset to a given connection is also retained in the background.
11.2 Switching Between Tests
Open the Test Manager.
Using the <↓ >, select the Test (Connection) that you wish to switch to. If you press the < ✓ >, the ARGUS will open the selected test.
With < >: The ARGUS will return to the point from which the Test Manager was called (e.g. to a test running in parallel). If no other test is running, the ARGUS will, reasonably enough, return to the Main menu.
11.3 Cancel All
Open the Test Manager.
Using the < ↓ >, select Cancel all.
The ARGUS will cancel all of the currently running tests and/or current connections and then return to the Main menu.
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12 Automatic Test
The ARGUS performs an automatic test series and displays the test results.
Using the intec software, WINplus or WINanalyse, the test results can also be saved on a PC, where they can be presented in a comprehensive measurement report and printed.
The ARGUS automatically performs the following sequence of tests:
On a BRI or U interface access (ARGUS in TE mode)
- Status
- Level Measuring
- Service Tests
- BERT in an extended call to oneself
- Test the Supplementary Services
- CF Interrogation (Call Diversions)
- MSN Interrogation
- X.31 test
On a BRI or U-interface permanent circuit
- Status
- Level Measuring
- BERT in end-to-end mode (e.g. with a loopbox on the remote end)
The ARGUS saves the test results together with the date and time (supplied by the exchange). Additionally, settings such as your own plus a remote call number will also be saved.
The test results are not lost when the ARGUS is switched off.
The ARGUS saves the results of multiple test series (records 1,2,3...).
Each function in the Automatic test menu refers to one of the test series saved as a record. Therefore, the first step will open a dialog in which you must select the desired data record.
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Use the <↓> to select Automatic tests. or press 4 to start an automatic test series.
Use the < ↓ > -Key to select the record holding the saved test results.
Press < NUMBER > to display the number of the access under test Empty records are labeled as "free“.
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12.1 Automatic Start test
You should check the required parameters (e.g. BERT measurement time and error level, see Page 120 and Page
120) before the automatic test series is begun.
Use the< ↓ > to select Start (in the example, the new test is saved in record number 2).
Enter Own number - on accesses using the DSS1 protocol - also enter a remote number.
Use the < ↓ > to select the service. (needed for the suppl.serv.test)
Start test
During the test series, the first three lines in the display will reflect the Single test currently being run. To interrupt the test, press
<
ABORT
>.
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Terminating the test (early):
The ARGUS is running an automatic test.
Interrupting a test
Use the < ↓ > to select Interrupt test.
Press the < to restart the test.
Stop test
ABORT
Any test results already determined will not be saved. Any “old” data stored under this data record number from a prior test will be retained.
> softkey
Skipping individual tests:
A single test can be skipped: In this example, the ARGUS is running a Service check.
Interrupt the Service check
Use < ↓ > to select Stop cur. test
Use <
ABORT
> continue the
Service check
The ARGUS will skip the Service check.
The next single test (e.g. BERT) will be started.
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