Elcon NT1+2a/b Bedienungsanleitung

NT1+2a/b

Supplementary Services

User Manual

Revision 1.3

2014/04/02

103987

Safety precautions

Before installing and commissioning the NT1+2a/b, please read these operating

instructions thoroughly. These instructions will help you to use the device to its full

extent and to avoid damage resulting from improper application.

•The NT1+2a/b has been manufactured according to state-of-the-art technology

and corresponds to well-accepted safety regulations.

•Please make sure that the device is operated only in faultless condition and that

these operating instructions are observed.

•Only authorized specialists are allowed to operate the NT1+2a/b and to open

the device.

•After connecting the device, install the right supply voltage (→Technical data)!

•Before opening the device, disconnect mains plug and remove cable from U

interface!

•The NT1+2a/b has no individual component for interrupting the supply voltage.

The device shall be placed within 2 meters from the mains socket.

•Care should be taken when installing the power supply and the connection

cables to avoid the risk of accidents (such as tripping over the cables).

•The device shall be operated only within a temperature range of 0°C to +40°C.

•In case of device failure, please contact the manufacturer or the representative

in your vicinity.

•Only such devices that will meet the electric safety requirements according to

EN 60950 and that are marked with the CE symbol shall be connected to the

interfaces of the NT1+2a/b.

•The terminals shall be equipped with appropriate connectors, otherwise

adequate adapters may be used.

•The terminals shall be connected only to the corresponding interfaces that have

been designed for them.

Apart from these safety instructions, installation and operation instructions are also

given in the respective chapters.

We reserve the right to modify the contents of these operating instructions.

Regarding the configuration and installation of your NT1+2a/b,

please ask your telecommunications network operator for further

information.

Table of contents

1Introduction.....................................................................................................2

2Symbols and abbreviations.............................................................................2

3Installation....................................................................................................... 3

4Configuration ..................................................................................................4

5Service and configuration description.............................................................5

5.1 MSN – Multiple Subscriber Number................................................................5

5.2 Terminal type.................................................................................................. 6

5.3 Emergency terminal........................................................................................ 6

5.4 Device Type Configuration.............................................................................. 7

5.5 CH - Call Hold................................................................................................. 7

5.5.1 Standard Functions.................................................................................. 7

5.5.2 Extended functions...................................................................................8

5.6 CW – Call Waiting........................................................................................... 9

5.6.1 Activation and deactivation....................................................................... 9

5.6.2 Active call phase ......................................................................................9

5.7 3PTY – Three Party Conference................................................................... 10

5.8 CF - Call Forwarding..................................................................................... 11

5.8.1 CFU – Call Forwarding Unconditional.................................................... 11

5.8.2 CFB - Call Forwarding On Busy............................................................. 11

5.8.3 CFNR – Call Forwarding No Reply......................................................... 12

5.8.4 Call Forwarding control Interrogation ..................................................... 12

5.9 CLIP – Calling Line Identification Presentation............................................. 13

5.10 CLIR – Calling Line Identification Restriction................................................ 14

5.11 COLR – Connected Line Identification Restriction........................................ 14

5.12 CBT – Clearback Time Delay ....................................................................... 15

5.13 Metering Pulses AOC-D................................................................................ 15

5.14 Malicious Call Identification (MCID).............................................................. 16

5.15 TP – Terminal Portability............................................................................... 16

5.16 Return to default setting................................................................................ 17

5.17 Configuration of the S/T-bus interface .......................................................... 17

5.18 Incoming Call Management.......................................................................... 17

6Optical Signalling at NT1+2a/b ..................................................................... 18

7Connection configuration.............................................................................. 18

8Positions of switches and connectors........................................................... 19

9Bus configuration of S/T interface................................................................. 19

10 Technical Details........................................................................................... 20

11 Block Diagram .............................................................................................. 21

1 Introduction

The NT1+2a/b is the joining element between the digital network of the

telecommunications company and the ISDN respective analogue terminals.

Should any questions regarding installation or operation of your NT1+2a/b

arise, please contact directly your telecommunications company. Competent

specialists there will give you the required support.

Do not start installation before your telecom access will be enabled. Your

telecommunications company will inform you about the exact date when this

will be effected!

This document describes handling of supplementary services and configuration

procedures for the ELCON NT1+2a/b.

The content of this document is subject to change.

2 Symbols and abbreviations

…The receiver is hooked on

 ...The receiver is hooked off

...Call is active

 ...The receiver is hooked on

...A special tone in your receiver (dial tone,

busy tone, error tone, ...)

 ...The phone is ringing

 ...Error tone sequence (a single

...sequence of 4 or 5 short tones)

 ...Dialling the destination number

®...Key ‚R-Flash‘

[D] ...A digit in the range from to 

...Star key at your analogue terminal

# ...Hatch key at your analogue terminal

3 Installation

Wall mounting

The NT1+2a/b unit is designed for wall mounting. The diagrams in figure 1, figure 2

and figure 3 show the connections to be made for the NT1+2a/b unit.

Mount the NT1+2a/b close to the transmission cable of the telecommunications

operator. In addition, you will need a mains socket for the line cord (max. 2 m long).

CAUTION: Before defining the position of the drill holes make sure that there

are no other concealed installations, e.g. water pipes, electrical power cables

etc.

Mark the drill holes on the intended place of the wall. After drilling the holes

(∅6 mm) and inserting the dowels, screw the 3.5 mm round-head screws into the

wall as far as the distance between wall and screw head is only approx. 2 mm. Hang

the NT1+2a/b over the screw heads and pull it down until it locks safely in its place.

IMPORTANT: Do not permanently expose the NT1+2a/b to the sun! Please keep

it dry!

Connecting the NT1+2a/b to the ISDN line (U interface)

A RJ11 connector is available to connect the U interface directly. The position of the

U interface connector is shown in figures 2 and 3.

Connecting the termination units

Connect your analogue terminal equipment, e.g. DTMF telephone, fax, etc. to the

RJ11 connectors situated in the middle of the housing base or, alternatively, the

connectors for a/b1 and a/b2 directly beside the RJ11 modular jacks where block

wiring has been provided (Pins 3 and 4 are used in the RJ11 connector).

Connect the ISDN terminal equipment by inserting the appropriate plug into the

RJ45 communication outlets on the right-side base of the NT1+2a/b. The 4 wire

clamp connectors for bus installation at S/T interface are described in figure 1, so

that wires for receive and transmit directions would not be mixed up.

Power supply

Now connect the 230 V a.c mains supply. Before switching on the 230 V a.c mains

supply, please check that all other connections are correct and secured.

The installation is now complete.

4 Configuration

The NT1+2a/b is configured by means of DIP switches along with the DTMF signals

of a connected analogue telephone. The DTMF settings are always available and not

protected by a password.

DIP switch settings

The switch SW permits to set the basic configuration of the termination resistors at

S/T interface.

Default settings is marked with bold letters here.

Switch

Default

Acts on

Effect

SW1

S/T

Receive

ON: 100 Ωparallel SR

OFF:

SW2

S/T

Transmit

ON: 100 Ωparallel SX

OFF:

SW3

OFF

S/T

Receive

ON: additional 100 Ωparallel SR

OFF:

SW4

OFF

S/T

Transmit

ON: additional 100 Ωparallel SX

OFF:

The pairs SW1, SW2 and

SW3, SW4 are each

connected in parallel, so that

these combinations can be

set: 50 Ω, 100 Ωor No

Parallel Resistor.

Description of S/T interface connectors RJ45 modular jack and clamp

connector

Figure 1

1234

100 Ohm

50 Ohm

Termination resistors

switched off

OFF

default setting

a2 b2 a1 b1

a2 a1 b1 b2 a2 a1 b1 b2

5 Service and configuration description

5.1 MSN – Multiple Subscriber Number

The NT1+2a/b can be configured with three telephone numbers (MSN1…MSN3) for

each a/b port. The number should always be configured, because it is necessary for

the Call Forwarding services. MSN1 is the number which is sent as the Calling Party

Number. If you do not configure a number at MSN1 or configure a number which is

not subscribed by your network provider, the provider will replace your Calling Party

Number with the default one. Start always please with MSN1 for configuration.

If you like to configure a/b1 please use analogue terminal at analogue port a/b1. For

the other case to configure a/b2 please use the analogue telephone at a/b2.

Configure your telephone number MSN for analogue port a/b1 or a/b2:

MSN1 for a/bx:

#  #  

MSN2 for a/bx:

#  #  

MSN3 for a/bx:

#  #  

x = 1 for a/b port 1 and x = 2 for a/b port 2

 is one of your subscribed telephone numbers you wish to configure

(without area code)

Configuration example:

Your personal ISDN access number MSN1 is 665852.

The program sequence is:

#  #

Note

The right configuration of your telephone numbers is very important for the

selection of your telephone when an incoming call occurs and for the ringing

signal in that case.

If no number is configured in MSN 1, all incoming calls are accepted

If a/b1 and a/b2 use same numbers, both telephones will ring (if they are free) and

the one which hooked-off first, will receive the call.

To disable your NT1+2a/b for incoming calls, configure a number not subscribed

for the MSN (i.e. ).

To clear an MSN, use ‚#‘ instead of ‚ #‘ in the above sequence.

5.2 Terminal type

For each telephone number of your NT1+2a/b you can select three types of device

type:

Select the device type for a telephone number:

# #  Speech

# #  FAX

# #  Modem

Tip

Default is Speech. Modem works for all combinations. Selection of another type

exclude calls only if they come from or go to ISDN terminals

If you select type facsimile for a telephone device you probably will receive no

tone signalisation from the network (busy, disconnect).

5.3 Emergency terminal

Your NT1+2a/b is normally connected to your local power supply. In this case both

a/b ports and the S/T port are available. In case of local power supply breakdown,

the NT1+2a/b can still work, but in restricted mode only. In that case one device

remains accessible. This could be either a/b1 or a/b2 or one ISDN telephone

connected to the S/T port. You can

select the device for emergency mode at S/T interface:

# #  

select the device for emergency mode at analogue ports a/b1 or a/b2:

# #  

In restricted mode the analogue ports are dynamical (a/b 1 or a/b 2), i.e. the

connection is established to that a/b-port where the receiver is hooked off first.

At this moment the other port is disabled. This is unavoidable, due to the fact

that the exchange provides only a limited wattage.

Note

Default setting for emergency terminal is analogue port.

Don’t forget to select emergency mode on your connected ISDN telephone in this

case.

To avoid blocking emergency terminal selection will be rejected in emergency

state.

5.4 Device Type Configuration

It is possible to select between different device type mode settings. You can select

between 4 different modes (see figure 3 and 4 for description of port type)

NT1+2a/b (default): full functionality, S/T interface and both

analogue ports ON





#

















NT1+a/b1: S/T interface and analogue port a/b1 ON; a/b2 OFF





#

















NT1+a/b2: S/T interface and analogue port a/b2 ON; a/b1 OFF

# 







#  

NT1: only S/T interface ON; both analogue ports OFF

# 







#  

You can only switch off an analogue port if this port is not configured for emergency

mode. In case only NT1-mode no incoming or outgoing calls were possible at

analogue ports. Only configuration entry is in NT1-mode allowed.

5.5 CH - Call Hold

5.5.1 Standard Functions

If you have an active call and want to talk to another partner without disconnecting

your first partner, you can interrupt your present call in order

To establish a second call:

® 

While the phone is ringing at the second subscriber or while you are talking to him

(after he has hooked off), your first connection is on hold. You can (either)

Switch between two calls:

®

When you try this and the subscriber on hold has already cleared his call you will

Receive the error tone sequence: (if the call on hold was cleared)



If you now try it a second time, you can establish a new call as described in the first

example of this paragraph.

If you have still a waiting partner and your active partner hooks on, you will hear a

disconnect tone . If you now hook on your receiver  and the second partner is

still waiting, the NT1+2a/b will

Remind you of the call in hold state:



Your telephone is now ringing continuously for about 10 seconds. If you hook off

 within this time, you will be connected with the call on hold. Otherwise this call

will be cleared.

If you have an active call and a call on hold and you hook on  your receiver first,

then the active call will be cleared and the NT1+2a/b will remind you of the waiting

call in the same way as described above.

There is still another way to retrieve a waiting call after your active partner has

hooked on and you hear the disconnect tone. If you haven‘t hooked on yet,

you can

Switch to the waiting call: (with no call active)

®

If the waiting call was already cleared, you will hear the disconnect tone for a short

time overlaid with  and you should hook on  at this point.

5.5.2 Extended functions

There are still some functions for clearing calls if you have an active and a call on

hold. But note the following.

Disconnect the hold call:

®

The partner still on hold will now hear the disconnect tone. You can continue your

present call.

Terminate the active call and switch to the one on hold:

®

You are now connected to the call on hold. Your first partner will now hear the

disconnect tone.

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