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

ARGUS

1

ARGUS 3u plus /3u NT

ARGUS 3u

Manual

plus

NT

/ 3u

ARGUS

2

ARGUS 3u plus /3u NT



by intec Gesellschaft für Informationstechnik mbH
D-58507 Lüdenscheid, Germany, 2007

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des Werkes darf in irgendeiner Form (Druck, Fotokopie,
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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

ARGUS

3

ARGUS 3u plus /3u NT

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

ARGUS

4

ARGUS 3u plus /3u NT

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

1 Introduction

5

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?

1 Introduction

6

ARGUS 3u plus /3u NT

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.

1 Introduction

7

ARGUS 3u plus /3u NT

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.: [phone] / 9070-0

Fax: [phone] / 9070-70

1 Introduction

8

ARGUS 3u plus /3u NT

2 Safety Instructions

9

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)

3 Technical data

10

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

13

ARGUS 3u plus /3u NT

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

4 Operation

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ARGUS 3u plus /3u NT

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).

15

ARGUS 3u plus /3u NT

• 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

4 Operation

16

ARGUS 3u plus /3u NT

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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ARGUS 3u plus/3u NT

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

5 Menu Hierarchy

18

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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ARGUS 3u plus/3u NT

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

5 Menu Hierarchy

20

ARGUS 3u

Numbers page 129

Reset page 131

Menu
Accu servicing

Charging page 133
Discharging page 133

6 Automatic Access Test

21

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.

6 Automatic Access Test

22

ARGUS 3u plus/3u NT

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 ✓

6 Automatic Access Test

23

ARGUS 3u plus/3u NT

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.

6 Automatic Access Test

24

ARGUS 3u plus/3u NT

- 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

6 Automatic Access Test

25

ARGUS 3u plus/3u NT

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.

7 Setting the type of access

26

ARGUS 3u plus/3u NT

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.

7 Setting the type of access

27

ARGUS 3u plus/3u NT

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

7 Setting the type of access

28

ARGUS 3u plus/3u NT

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.

7 Setting the type of access

29

ARGUS 3u plus/3u NT

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 ΩΩΩΩ.

- Crossed wires and broken connections between the test
adapter and the terminating resistor cannot be found.

7 Setting the type of access

30

ARGUS 3u plus/3u NT

- 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.

8 Select the Access Mode

31

ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

9 Single Tests

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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

Geb.anzeige Advice of charge

Rufnummern-IdSetup call number identifier

- against malicious calls

49

ARGUS 3u plus/3u NT

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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50

ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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 /

55

ARGUS 3u plus/3u NT

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.

9 Single Tests

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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)).

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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

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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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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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ARGUS 3u plus/3u NT

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.