Aethra NT1 Plus User manual

Aethra
NT1 Plus
SWITCH SETTINGS
The front panel has a removable cover to
access switch settings for:
- So bus configuration (short passive/exten-
ded)
- emergency power (one of the POTS inter-
faces or the So bus)
- terminating resistors for the So Bus.
INSTALLATION AND CONFIGURATION
Local and Remote installation and confi-
guration procedures are available through
a DTMF phone either connected to one of
the POTS interfaces or from a “secured”
ISDN access, through a normal telephone
or a PC connected to an Aethra TA1008
terminal adapter or an Aethra Front End
LOCAL AND REMOTE MAINTENANCE
The NT1 Plus provides a list of diagnostic
features:
- download of firmware upgrades
- remote diagnostics for POTS interfaces
- ringing voltage
- microphone current
- capacity measurement on
the POTS interfaces
- short circuit control.
All rights reserved. Technical specifications are subject to change without prior notice.
Design: Uttinacci & Turano - Roma
Aethra Telecomunicazioni
Internet: www.aethra.com
Email: [email protected]
Headquarters:
Ancona 60020 - Italy
Via Matteo Ricci, 10
Telephone: [phone]
Fax: [phone]
Video: +39.071.2189701/2/3/4
Offices:
Turin, Milan, Venice, Bologna,
Rome, Naples, Palermo,
Miami, Dubai, Beijing,
Santiago, Lima, Paris
Aethra - Ancona
ISO9001 Certified
Code 071063000GB Rev.0 (03/01)
CONNECTIONS
So bus Two modular connectors 8p/4c RJ-45, ISO8877
Terminal blocks (optional)
POTS Two modular connectors 6p/2c RJ-11
Terminal blocks
Line pair (U) 2-pole terminal block, or RJ-11
Mains supply Internal power supply, bipolar cord
TECHNICAL SPECIFICATIONS
Line interface
Line codes 2B1Q or 4B3T
Standard compliance TS 102 080
Power consumption max 1.4 W
Range up to 1kΩ(V remote supply > 90Vdc)
POTS interfaces
Dialling mode DTMF, pulse
Impedance 600Ωor complex (optional)
Speech quality Q.552
No load voltage < 60 V
d.c. load from 0 to 800Ω
Ringing Generator
Ringing Voltage > 40 V / 2kΩ
Ringing load approx. 3 REN
Frequency 25 Hz, asymmetrical
Max distortion 10%
Reference Standard for Environmental Quality
Safety EN60950 (oct. 96)
EMC and protections ETS 300 047, ETS 300 386-2-2
Transport ETS 300 019-1-2 class 1.2
Storage ETS 300 019-1-1 class 2.2
Operation ETS 300 019-1-3 class 3.2
Overvoltages protection exceeds ITU-T K21
Mechanical
Dimensions 212x160x57 mm.
Weight 1100 gr.
Power Supply
Current <100 mA
Voltage 230 Vac + 10% - 15% 50 Hz
NT1 Plus
FUNCTIONAL CHARACTERISTICS
- A full ISDN service is to be provided to terminals connected to the So bus.
- NT1 Plus shall operate with all existing analogue equipment, and it shall support
supplementary telephony services (3-way conferencing, call diversion, call waiting, etc.).
- Emergency operation is to be guaranteed to one POTS interface.
- Provision of convenient remote configuration, maintenance and diagnostics and the
capability to remotely download the operating firmware.
- Support to both 2B1Q and 4B3T line code.
STANDARD NT1 FEATURES
- 2-wire interface on the U reference point.
- 4-wire user bus on the S/T reference point.
- Emergency power supply to user terminals.
ANALOGUE TERMINALS INTERFACE FEATURES
- Pulse and/or tone dialling.
- 25 Hz low distortion asymmetric ringing signal.
- PCM speech coder, according to G.711, A-law.
- Emergency power to one POTS interface.
ADDITIONAL FEATURES
- Easy installation, operation and maintenance.
- Local or remote configuration through a standard DTMF phone.
- Local or remote maintenance, including configuration and diagnostics on the POTS
and the U interface.
- Local and remote download of firmware upgrades.
- Support for stimulus and ETSI supplementary services.
The NT1 Plus is a network termi-
nation for the ISDN basic rate
access, which adds to the featu-
res of a standard ISDN network
termination (NT1) a dual inter-
face to analogue terminals desi-
gned for connection to POTS
(Plain Old Telephone System)
networks. These terminals inclu-
de standard phone sets, group
three fax machines, automatic
answering machines, data
modems, small Private Branch
Exchanges (PBX), Key Telephone
Systems (KTS), cordless and
DECT phones, etc.
The NT1 Plus therefore allows
network providers to overcome
a major obstacle to the diffusion
of ISDN in the Small Office And
Home Office (SOHO) and in the
residential markets: network
providers can offer a complete
ISDN service, aligned to current
regulations and, at the same
time, subscribers are not requi-
red to purchase any additional
equipment, such as digital ISDN
phones and/or terminal adap-
ters to deploy basic telephony
services.
POWER SUPPLY
The NT1 Plus has no batteries and is powered through an internal mains power supply
or from the power supplied by the network over the line pair.
Power consumption from the network is limited to 1400 mW in the worst case (one POTS
interface powered under emergency conditions).
So INTERFACE
On the So interface the NT1 Plus provides the same quality of service as a standard NT1,
including:
- full compliance to regulatory standards
- up to 8 terminals allowed on the S bus
- complete transparency to the test procedures from the exchange.
POTS INTERFACES
POTS interfaces support both pulse and DTMF dialling. Local tone generation (dial tone,
congestion and call waiting) is provided when required. Register recall and hook-flash
keys are also supported (e.g. to invoke supplementary services).
STANDARD SUPPLEMENTARY SERVICES
- Multiple Subscriber Numbers (MSN).
- Calling Line Identification Presentation (CLIP).
- Connected Line Identification Presentation (COLP).
OPTIONAL SUPPLEMENTARY SERVICES
- Call Forwarding (Unconditional - CFU, On User Busy - CFB, No Reply - CFNR).
- Call Completion on Busy Subscriber (CCBS).
- Call Waiting (CW).
- Malicious Call Identification (MCID).
- Calling Line Identification Restriction (CLIR).
- Line Identification Restriction (COLR).
- 3-Pty Conference (3PC).
- Closed User Group (CUG).
- Call Hold (CH).
- Advice of Charge (AOC).
TE8TE1
"U"
"S"
TE2
ISDN
ISDN termination with dual analogue interfaces
NT-IP
The NT-IP is a network termination for the
ISDN basic rate access, which adds to the
features commonly found in a standard ISDN
network termination (NT1), two standard
telephone ports and an RS232 interface to
provide a fully digital, fast and reliable con-
nection to a PPP terminal server, such as
Internet Service Provider (ISP), remote
access, e-mail access server, etc.
BENEFITS
AO/DI
AO/DI, unlike standard ISDN, actually makes
three communications channels available to
the user. If, for example, both B-Channels are
bonded for a data session, and an incoming
call is received, one of the B-Channels is
automatically freed up for the telephone call.
If a fax call also comes in, the remaining B-
Channel may be allocated to the fax call. The
data session continues on the D-Channel
until a B-Channel is available, if needed.
TELEPHONY SERVICES
When connecting to the ISDN over a NT-IP,
subscribers deploy ISDN basic telephony ser-
vices without any need to purchase additio-
nal equipment (digital phones and/or termi-
nal adapters), and can keep using standard
devices, such as standard phone sets, cord-
less phones, analogue modems, group 3 fax
machines, automatic answering machines,
analogue micro PBX’s etc.
The NT-IP also supports a range of supple-
mentary telephony services (call hold, call
waiting, 3-party conferencing, call forwar-
ding, etc.).
DIAL-UP DATA SERVICES
A fully digital data service is provided by the
NT-IP straight to the COM port of a PC with
unrivalled performance compared to analo-
gue modems, including sub-second call
setup times and a virtually error free data
channel to the service provider at a guaran-
teed bit rate. No additional hardware or
software need to be installed to operate the
service.
NATIVE ISDN SERVICES
Additionally, subscribers connect native ISDN
terminals, such as videophony terminals, group
4 fax machines, etc., directly on the S-bus.
OPERATOR ADVANTAGES
Being an integrated access device, the NT-IP
offers the telecom operators simplified provi-
sioning and installation.
The NT-IP fully supports remote monitoring,
configuration, maintenance, and firmware
upgrade: operators can therefore offer their
customers a faster maintenance service at a
lower cost by limiting the number of on-site
interventions.
Enhanced ISDN network termination for Internet access and analogue phones
FEATURE SUMMARY
STANDARD NT1
- 2-wire interface on the U reference point.
- 4-wire user bus on the S/T reference
point.
POTS INTERFACES
Electrical:
- PCM speech coder/decoder, according to
G.711, A-law.
- Pulse and/or tone dialling, metering
pulse generation.
- One port available in emergency condi-
tions (mains off).
- Local tone generation (dial tone, conge-
stion and call waiting) is provided when
required.
- Register recall or hook-flash keys are
also supported to invoke supplementary
services.
- To allow operation with a wide range of
terminal, the NT-IP features high on-
hook battery voltage and high voltage
ringing even on heavy ringer loads (~3
REN’s).
Additional functions can be provided
according to customer specifications.
STANDARD SUPPLEMENTARY SERVICES
FOR THE POTS INTERFACES
- The POTS ports of the NT-IP support the
Multiple Subscriber Numbers (MSN), the
Calling Line Identification Presentation
(CLIP), Connected Line Identification
Presentation (COLP) supplementary ser-
vices.
ADDITIONAL SUPPLEMENTARY SERVICES
- The NT-IP supports supplementary servi-
ces based on stimulus procedures.
- Particularly, the following ETSI functional
protocol services are supported: Call
Hold (CH), Call Waiting (CW), Advice of
Charge (AOC), 3-Pty Conference (3-PTY),
Calling Line Identification Restriction
(CLIR) , Explicit Call Transfer (ECT) and
Malicious Call Identification (MCID).
AO/DI
AO/DI allows the user to maintain a conti-
nuos connection without continuously tying
up a circuit. In its Dynamic ISDN aspect,
AO/DI allows the B-Channels, and thus the
circuit-switched network and connected
hardware, to be dynamically allocated to
end users only as actually needed.
RS232 PORT
- PPP asynchronous to synchronous con-
version
- Enhanced AT command set.
- Handling of control signals (DTR, DSR,
CTS, etc.).
- Implicit rate adaption via the HDLC fra-
ming.
Other major features of the RS-232 port
include:
- Selectable hardware (CTS) or software
(X-on, X-off) flow control.
One directory number (DN) can be alloca-
ted for the RS232 port.
- Internet Access on a single B-channel or
on both B-channels using the multilink
PPP (MP) protocol
- Always on /Dynamic ISDN (AO/DI)
- Bandwidth on Demand (BOD)
- Bandwidth Allocation Protocol and
Bandwidth Allocation Control Protocol
(BAP/BACP)
- Peer to peer communication according to
ITU-T V.120 or V.110 recommendations
- Enhanced AT command
- Automatic bit rate recognition up to
230,4 kb/s
PPP OPERATION
- Single link PPP
- Multilink PPP
- Call Bumping
- Bandwidth On Demand
- The Bandwidth Allocation Protocol
- Always On/Dynamic ISDN
1 2
POWER RS 232
SS
U
a/b
a/b
RS232
S-BUS
U
To other
S-BUS devices
Promary
Rate
Access
Internet
Service Provider
ISDN
So INTERFACE
On the So interface the NT IP provides the same quality of service as a standard NT1,
including:
- Full compliance to regulatory standards.
- Up to 8 terminals allowed on the S bus.
- Complete transparency to the test procedures from the exchange.
So POWER SUPPLY
Standard PS1 phantom supply to the So bus is provided when the local a.c. power is
available.
U INTERFACE
The NT-IP fully complies to ETS Technical Report TS 102 080, except for higher power
consumption when emergency power is provided to the POTS port.
SYSTEM OPERATION
LEDS
The following status monitoring LEDs are located near the front panel:
PWR A.C. power supplied
U Line interface connected
DTR Data Terminal Ready (C108)
DCD Line status or Carrier detect (C109)
CTS Clear to Send (C106)
TD Transmit Data (C103)
RD Receive Data (C104)
B1 Channel B1 status
B2 Channel B1 status
SWITCHES
On the bottom side of the device two dip switches are available to:
- select the So bus configuration (short passive/extended)
- include terminating resistors for the So bus (100 Ω/ off)
All other settings are made via configuration procedures.
Aethra
NT-IP
CONNECTIONS
So bus Two modular RJ-45 ISO8877 connectors (8p/4c)
POTS Two modular RJ-11 connectors (6p/2c)
2-pole spring terminal
RS232 port DB-9 connector
Line pair (U) 2-pole screw terminal or RJ-45
Power supply Plug (external feeder)
This document contains preliminary information subject to change without notice.
© Copyright Aethra Telecomunicazioni Srl 1998.
Design: Uttinacci & Turano - Roma
Aethra Telecomunicazioni
Internet: www.aethra.com
Email: [email protected]
Headquarters:
Ancona 60020 - Italy
Via Matteo Ricci, 10
Telephone: [phone]
Fax: [phone]
Video: +39.071.2189701/2/3/4
Offices:
Turin, Milan, Venice, Bologna,
Rome, Naples, Palermo,
Miami, Dubai, Beijing,
Santiago, Lima, Paris
Aethra - Ancona
ISO9001 Certified
Code 071063001GB Rev.0 (03/01)
INSTALLATION AND CONFIGURATION
Local and Remote installation and confi-
guration procedures are available through
a DTMF phone either connected to one of
the POTS interfaces or from a “secured”
ISDN access, through a normal telephone
or a PC connected to a NT-IP or an Aethra
TA-INET or TA-IP or Front End. Some para-
meters related to the RS-232 port can
only be configured using AT-commands.
LOCAL AND REMOTE MAINTENANCE
The NT-IP provides a list of diagnostic
features:
- Download of firmware upgrades.
- Remote diagnostics for POTS interfaces.
- ringing voltage
- microphone current
- capacity measurement on
the POTS interfaces
- short circuit control.
TECHNICAL SPECIFICATIONS
Line interface
Line codes 2B1Q or 4B3T
Standard compliance TS 102 080
Power consumption max 1.4 W
Range up to 1kΩ(V remote supply > 90Vdc)
RS232 port
Control circuits TXD,RXD,RTS,CTS,DSR,DTR,DCD
Data rate up to 230.4 kbit/s
Access protocol PPP, internal async to sync converter, V120, V110
Dialling mode Hayes®AT command set
POTS interfaces
Dialling mode DTMF, pulse
Impedance 600Ωor complex (optional)
Speech quality Q.552
No load voltage < 60 V
d.c. load from 0 to 800Ω
Ringing Generator
Ringing Voltage > 40 V / 2kΩ
Ringing load approx. 3 REN
Frequency 25 Hz, asymmetrical
Max distortion 10%
Reference Standard for Environmental Quality
Safety EN60950 (oct. 96)
EMC and protections ETS 300 047, ETS 300 386-2-2
Transport ETS 300 019-1-1 class 1.2
Storage ETS 300 019-1-2 class 2.2
Operation ETS 300 019-1-3 class 3.2
Overvoltages protection exceeds ITU-T K21
Mechanical
Dimensions 180x140x45 mm.
Weight 455 gr.
Power Supply
Current <100 mA
Voltage 90÷250 Vac, 50÷60 Hz
Operating System Requirements
Windows 95, 98, 98 SE, ME, 2000, NT4, Linux, Macintosh

Aethra
NT1 Plus
SWITCH SETTINGS
The front panel has a removable cover to
access switch settings for:
- So bus configuration (short passive/exten-
ded)
- emergency power (one of the POTS inter-
faces or the So bus)
- terminating resistors for the So Bus.
INSTALLATION AND CONFIGURATION
Local and Remote installation and confi-
guration procedures are available through
a DTMF phone either connected to one of
the POTS interfaces or from a “secured”
ISDN access, through a normal telephone
or a PC connected to an Aethra TA1008
terminal adapter or an Aethra Front End
LOCAL AND REMOTE MAINTENANCE
The NT1 Plus provides a list of diagnostic
features:
- download of firmware upgrades
- remote diagnostics for POTS interfaces
- ringing voltage
- microphone current
- capacity measurement on
the POTS interfaces
- short circuit control.
All rights reserved. Technical specifications are subject to change without prior notice.
Design: Uttinacci & Turano - Roma
Aethra Telecomunicazioni
Internet: www.aethra.com
Email: [email protected]
Headquarters:
Ancona 60020 - Italy
Via Matteo Ricci, 10
Telephone: [phone]
Fax: [phone]
Video: +39.071.2189701/2/3/4
Offices:
Turin, Milan, Venice, Bologna,
Rome, Naples, Palermo,
Miami, Dubai, Beijing,
Santiago, Lima, Paris
Aethra - Ancona
ISO9001 Certified
Code 071063000GB Rev.0 (03/01)
CONNECTIONS
So bus Two modular connectors 8p/4c RJ-45, ISO8877
Terminal blocks (optional)
POTS Two modular connectors 6p/2c RJ-11
Terminal blocks
Line pair (U) 2-pole terminal block, or RJ-11
Mains supply Internal power supply, bipolar cord
TECHNICAL SPECIFICATIONS
Line interface
Line codes 2B1Q or 4B3T
Standard compliance TS 102 080
Power consumption max 1.4 W
Range up to 1kΩ(V remote supply > 90Vdc)
POTS interfaces
Dialling mode DTMF, pulse
Impedance 600Ωor complex (optional)
Speech quality Q.552
No load voltage < 60 V
d.c. load from 0 to 800Ω
Ringing Generator
Ringing Voltage > 40 V / 2kΩ
Ringing load approx. 3 REN
Frequency 25 Hz, asymmetrical
Max distortion 10%
Reference Standard for Environmental Quality
Safety EN60950 (oct. 96)
EMC and protections ETS 300 047, ETS 300 386-2-2
Transport ETS 300 019-1-2 class 1.2
Storage ETS 300 019-1-1 class 2.2
Operation ETS 300 019-1-3 class 3.2
Overvoltages protection exceeds ITU-T K21
Mechanical
Dimensions 212x160x57 mm.
Weight 1100 gr.
Power Supply
Current <100 mA
Voltage 230 Vac + 10% - 15% 50 Hz
NT1 Plus
FUNCTIONAL CHARACTERISTICS
- A full ISDN service is to be provided to terminals connected to the So bus.
- NT1 Plus shall operate with all existing analogue equipment, and it shall support
supplementary telephony services (3-way conferencing, call diversion, call waiting, etc.).
- Emergency operation is to be guaranteed to one POTS interface.
- Provision of convenient remote configuration, maintenance and diagnostics and the
capability to remotely download the operating firmware.
- Support to both 2B1Q and 4B3T line code.
STANDARD NT1 FEATURES
- 2-wire interface on the U reference point.
- 4-wire user bus on the S/T reference point.
- Emergency power supply to user terminals.
ANALOGUE TERMINALS INTERFACE FEATURES
- Pulse and/or tone dialling.
- 25 Hz low distortion asymmetric ringing signal.
- PCM speech coder, according to G.711, A-law.
- Emergency power to one POTS interface.
ADDITIONAL FEATURES
- Easy installation, operation and maintenance.
- Local or remote configuration through a standard DTMF phone.
- Local or remote maintenance, including configuration and diagnostics on the POTS
and the U interface.
- Local and remote download of firmware upgrades.
- Support for stimulus and ETSI supplementary services.
The NT1 Plus is a network termi-
nation for the ISDN basic rate
access, which adds to the featu-
res of a standard ISDN network
termination (NT1) a dual inter-
face to analogue terminals desi-
gned for connection to POTS
(Plain Old Telephone System)
networks. These terminals inclu-
de standard phone sets, group
three fax machines, automatic
answering machines, data
modems, small Private Branch
Exchanges (PBX), Key Telephone
Systems (KTS), cordless and
DECT phones, etc.
The NT1 Plus therefore allows
network providers to overcome
a major obstacle to the diffusion
of ISDN in the Small Office And
Home Office (SOHO) and in the
residential markets: network
providers can offer a complete
ISDN service, aligned to current
regulations and, at the same
time, subscribers are not requi-
red to purchase any additional
equipment, such as digital ISDN
phones and/or terminal adap-
ters to deploy basic telephony
services.
POWER SUPPLY
The NT1 Plus has no batteries and is powered through an internal mains power supply
or from the power supplied by the network over the line pair.
Power consumption from the network is limited to 1400 mW in the worst case (one POTS
interface powered under emergency conditions).
So INTERFACE
On the So interface the NT1 Plus provides the same quality of service as a standard NT1,
including:
- full compliance to regulatory standards
- up to 8 terminals allowed on the S bus
- complete transparency to the test procedures from the exchange.
POTS INTERFACES
POTS interfaces support both pulse and DTMF dialling. Local tone generation (dial tone,
congestion and call waiting) is provided when required. Register recall and hook-flash
keys are also supported (e.g. to invoke supplementary services).
STANDARD SUPPLEMENTARY SERVICES
- Multiple Subscriber Numbers (MSN).
- Calling Line Identification Presentation (CLIP).
- Connected Line Identification Presentation (COLP).
OPTIONAL SUPPLEMENTARY SERVICES
- Call Forwarding (Unconditional - CFU, On User Busy - CFB, No Reply - CFNR).
- Call Completion on Busy Subscriber (CCBS).
- Call Waiting (CW).
- Malicious Call Identification (MCID).
- Calling Line Identification Restriction (CLIR).
- Line Identification Restriction (COLR).
- 3-Pty Conference (3PC).
- Closed User Group (CUG).
- Call Hold (CH).
- Advice of Charge (AOC).
TE8TE1
"U"
"S"
TE2
ISDN
ISDN termination with dual analogue interfaces
NT-IP
The NT-IP is a network termination for the
ISDN basic rate access, which adds to the
features commonly found in a standard ISDN
network termination (NT1), two standard
telephone ports and an RS232 interface to
provide a fully digital, fast and reliable con-
nection to a PPP terminal server, such as
Internet Service Provider (ISP), remote
access, e-mail access server, etc.
BENEFITS
AO/DI
AO/DI, unlike standard ISDN, actually makes
three communications channels available to
the user. If, for example, both B-Channels are
bonded for a data session, and an incoming
call is received, one of the B-Channels is
automatically freed up for the telephone call.
If a fax call also comes in, the remaining B-
Channel may be allocated to the fax call. The
data session continues on the D-Channel
until a B-Channel is available, if needed.
TELEPHONY SERVICES
When connecting to the ISDN over a NT-IP,
subscribers deploy ISDN basic telephony ser-
vices without any need to purchase additio-
nal equipment (digital phones and/or termi-
nal adapters), and can keep using standard
devices, such as standard phone sets, cord-
less phones, analogue modems, group 3 fax
machines, automatic answering machines,
analogue micro PBX’s etc.
The NT-IP also supports a range of supple-
mentary telephony services (call hold, call
waiting, 3-party conferencing, call forwar-
ding, etc.).
DIAL-UP DATA SERVICES
A fully digital data service is provided by the
NT-IP straight to the COM port of a PC with
unrivalled performance compared to analo-
gue modems, including sub-second call
setup times and a virtually error free data
channel to the service provider at a guaran-
teed bit rate. No additional hardware or
software need to be installed to operate the
service.
NATIVE ISDN SERVICES
Additionally, subscribers connect native ISDN
terminals, such as videophony terminals, group
4 fax machines, etc., directly on the S-bus.
OPERATOR ADVANTAGES
Being an integrated access device, the NT-IP
offers the telecom operators simplified provi-
sioning and installation.
The NT-IP fully supports remote monitoring,
configuration, maintenance, and firmware
upgrade: operators can therefore offer their
customers a faster maintenance service at a
lower cost by limiting the number of on-site
interventions.
Enhanced ISDN network termination for Internet access and analogue phones
FEATURE SUMMARY
STANDARD NT1
- 2-wire interface on the U reference point.
- 4-wire user bus on the S/T reference
point.
POTS INTERFACES
Electrical:
- PCM speech coder/decoder, according to
G.711, A-law.
- Pulse and/or tone dialling, metering
pulse generation.
- One port available in emergency condi-
tions (mains off).
- Local tone generation (dial tone, conge-
stion and call waiting) is provided when
required.
- Register recall or hook-flash keys are
also supported to invoke supplementary
services.
- To allow operation with a wide range of
terminal, the NT-IP features high on-
hook battery voltage and high voltage
ringing even on heavy ringer loads (~3
REN’s).
Additional functions can be provided
according to customer specifications.
STANDARD SUPPLEMENTARY SERVICES
FOR THE POTS INTERFACES
- The POTS ports of the NT-IP support the
Multiple Subscriber Numbers (MSN), the
Calling Line Identification Presentation
(CLIP), Connected Line Identification
Presentation (COLP) supplementary ser-
vices.
ADDITIONAL SUPPLEMENTARY SERVICES
- The NT-IP supports supplementary servi-
ces based on stimulus procedures.
- Particularly, the following ETSI functional
protocol services are supported: Call
Hold (CH), Call Waiting (CW), Advice of
Charge (AOC), 3-Pty Conference (3-PTY),
Calling Line Identification Restriction
(CLIR) , Explicit Call Transfer (ECT) and
Malicious Call Identification (MCID).
AO/DI
AO/DI allows the user to maintain a conti-
nuos connection without continuously tying
up a circuit. In its Dynamic ISDN aspect,
AO/DI allows the B-Channels, and thus the
circuit-switched network and connected
hardware, to be dynamically allocated to
end users only as actually needed.
RS232 PORT
- PPP asynchronous to synchronous con-
version
- Enhanced AT command set.
- Handling of control signals (DTR, DSR,
CTS, etc.).
- Implicit rate adaption via the HDLC fra-
ming.
Other major features of the RS-232 port
include:
- Selectable hardware (CTS) or software
(X-on, X-off) flow control.
One directory number (DN) can be alloca-
ted for the RS232 port.
- Internet Access on a single B-channel or
on both B-channels using the multilink
PPP (MP) protocol
- Always on /Dynamic ISDN (AO/DI)
- Bandwidth on Demand (BOD)
- Bandwidth Allocation Protocol and
Bandwidth Allocation Control Protocol
(BAP/BACP)
- Peer to peer communication according to
ITU-T V.120 or V.110 recommendations
- Enhanced AT command
- Automatic bit rate recognition up to
230,4 kb/s
PPP OPERATION
- Single link PPP
- Multilink PPP
- Call Bumping
- Bandwidth On Demand
- The Bandwidth Allocation Protocol
- Always On/Dynamic ISDN
1 2
POWER RS 232
SS
U
a/b
a/b
RS232
S-BUS
U
To other
S-BUS devices
Promary
Rate
Access
Internet
Service Provider
ISDN
So INTERFACE
On the So interface the NT IP provides the same quality of service as a standard NT1,
including:
- Full compliance to regulatory standards.
- Up to 8 terminals allowed on the S bus.
- Complete transparency to the test procedures from the exchange.
So POWER SUPPLY
Standard PS1 phantom supply to the So bus is provided when the local a.c. power is
available.
U INTERFACE
The NT-IP fully complies to ETS Technical Report TS 102 080, except for higher power
consumption when emergency power is provided to the POTS port.
SYSTEM OPERATION
LEDS
The following status monitoring LEDs are located near the front panel:
PWR A.C. power supplied
U Line interface connected
DTR Data Terminal Ready (C108)
DCD Line status or Carrier detect (C109)
CTS Clear to Send (C106)
TD Transmit Data (C103)
RD Receive Data (C104)
B1 Channel B1 status
B2 Channel B1 status
SWITCHES
On the bottom side of the device two dip switches are available to:
- select the So bus configuration (short passive/extended)
- include terminating resistors for the So bus (100 Ω/ off)
All other settings are made via configuration procedures.
Aethra
NT-IP
CONNECTIONS
So bus Two modular RJ-45 ISO8877 connectors (8p/4c)
POTS Two modular RJ-11 connectors (6p/2c)
2-pole spring terminal
RS232 port DB-9 connector
Line pair (U) 2-pole screw terminal or RJ-45
Power supply Plug (external feeder)
This document contains preliminary information subject to change without notice.
© Copyright Aethra Telecomunicazioni Srl 1998.
Design: Uttinacci & Turano - Roma
Aethra Telecomunicazioni
Internet: www.aethra.com
Email: [email protected]
Headquarters:
Ancona 60020 - Italy
Via Matteo Ricci, 10
Telephone: [phone]
Fax: [phone]
Video: +39.071.2189701/2/3/4
Offices:
Turin, Milan, Venice, Bologna,
Rome, Naples, Palermo,
Miami, Dubai, Beijing,
Santiago, Lima, Paris
Aethra - Ancona
ISO9001 Certified
Code 071063001GB Rev.0 (03/01)
INSTALLATION AND CONFIGURATION
Local and Remote installation and confi-
guration procedures are available through
a DTMF phone either connected to one of
the POTS interfaces or from a “secured”
ISDN access, through a normal telephone
or a PC connected to a NT-IP or an Aethra
TA-INET or TA-IP or Front End. Some para-
meters related to the RS-232 port can
only be configured using AT-commands.
LOCAL AND REMOTE MAINTENANCE
The NT-IP provides a list of diagnostic
features:
- Download of firmware upgrades.
- Remote diagnostics for POTS interfaces.
- ringing voltage
- microphone current
- capacity measurement on
the POTS interfaces
- short circuit control.
TECHNICAL SPECIFICATIONS
Line interface
Line codes 2B1Q or 4B3T
Standard compliance TS 102 080
Power consumption max 1.4 W
Range up to 1kΩ(V remote supply > 90Vdc)
RS232 port
Control circuits TXD,RXD,RTS,CTS,DSR,DTR,DCD
Data rate up to 230.4 kbit/s
Access protocol PPP, internal async to sync converter, V120, V110
Dialling mode Hayes®AT command set
POTS interfaces
Dialling mode DTMF, pulse
Impedance 600Ωor complex (optional)
Speech quality Q.552
No load voltage < 60 V
d.c. load from 0 to 800Ω
Ringing Generator
Ringing Voltage > 40 V / 2kΩ
Ringing load approx. 3 REN
Frequency 25 Hz, asymmetrical
Max distortion 10%
Reference Standard for Environmental Quality
Safety EN60950 (oct. 96)
EMC and protections ETS 300 047, ETS 300 386-2-2
Transport ETS 300 019-1-1 class 1.2
Storage ETS 300 019-1-2 class 2.2
Operation ETS 300 019-1-3 class 3.2
Overvoltages protection exceeds ITU-T K21
Mechanical
Dimensions 180x140x45 mm.
Weight 455 gr.
Power Supply
Current <100 mA
Voltage 90÷250 Vac, 50÷60 Hz
Operating System Requirements
Windows 95, 98, 98 SE, ME, 2000, NT4, Linux, Macintosh

Aethra
NT1 Plus
SWITCH SETTINGS
The front panel has a removable cover to
access switch settings for:
- So bus configuration (short passive/exten-
ded)
- emergency power (one of the POTS inter-
faces or the So bus)
- terminating resistors for the So Bus.
INSTALLATION AND CONFIGURATION
Local and Remote installation and confi-
guration procedures are available through
a DTMF phone either connected to one of
the POTS interfaces or from a “secured”
ISDN access, through a normal telephone
or a PC connected to an Aethra TA1008
terminal adapter or an Aethra Front End
LOCAL AND REMOTE MAINTENANCE
The NT1 Plus provides a list of diagnostic
features:
- download of firmware upgrades
- remote diagnostics for POTS interfaces
- ringing voltage
- microphone current
- capacity measurement on
the POTS interfaces
- short circuit control.
All rights reserved. Technical specifications are subject to change without prior notice.
Design: Uttinacci & Turano - Roma
Aethra Telecomunicazioni
Internet: www.aethra.com
Email: [email protected]
Headquarters:
Ancona 60020 - Italy
Via Matteo Ricci, 10
Telephone: [phone]
Fax: [phone]
Video: +39.071.2189701/2/3/4
Offices:
Turin, Milan, Venice, Bologna,
Rome, Naples, Palermo,
Miami, Dubai, Beijing,
Santiago, Lima, Paris
Aethra - Ancona
ISO9001 Certified
Code 071063000GB Rev.0 (03/01)
CONNECTIONS
So bus Two modular connectors 8p/4c RJ-45, ISO8877
Terminal blocks (optional)
POTS Two modular connectors 6p/2c RJ-11
Terminal blocks
Line pair (U) 2-pole terminal block, or RJ-11
Mains supply Internal power supply, bipolar cord
TECHNICAL SPECIFICATIONS
Line interface
Line codes 2B1Q or 4B3T
Standard compliance TS 102 080
Power consumption max 1.4 W
Range up to 1kΩ(V remote supply > 90Vdc)
POTS interfaces
Dialling mode DTMF, pulse
Impedance 600Ωor complex (optional)
Speech quality Q.552
No load voltage < 60 V
d.c. load from 0 to 800Ω
Ringing Generator
Ringing Voltage > 40 V / 2kΩ
Ringing load approx. 3 REN
Frequency 25 Hz, asymmetrical
Max distortion 10%
Reference Standard for Environmental Quality
Safety EN60950 (oct. 96)
EMC and protections ETS 300 047, ETS 300 386-2-2
Transport ETS 300 019-1-2 class 1.2
Storage ETS 300 019-1-1 class 2.2
Operation ETS 300 019-1-3 class 3.2
Overvoltages protection exceeds ITU-T K21
Mechanical
Dimensions 212x160x57 mm.
Weight 1100 gr.
Power Supply
Current <100 mA
Voltage 230 Vac + 10% - 15% 50 Hz
NT1 Plus
FUNCTIONAL CHARACTERISTICS
- A full ISDN service is to be provided to terminals connected to the So bus.
- NT1 Plus shall operate with all existing analogue equipment, and it shall support
supplementary telephony services (3-way conferencing, call diversion, call waiting, etc.).
- Emergency operation is to be guaranteed to one POTS interface.
- Provision of convenient remote configuration, maintenance and diagnostics and the
capability to remotely download the operating firmware.
- Support to both 2B1Q and 4B3T line code.
STANDARD NT1 FEATURES
- 2-wire interface on the U reference point.
- 4-wire user bus on the S/T reference point.
- Emergency power supply to user terminals.
ANALOGUE TERMINALS INTERFACE FEATURES
- Pulse and/or tone dialling.
- 25 Hz low distortion asymmetric ringing signal.
- PCM speech coder, according to G.711, A-law.
- Emergency power to one POTS interface.
ADDITIONAL FEATURES
- Easy installation, operation and maintenance.
- Local or remote configuration through a standard DTMF phone.
- Local or remote maintenance, including configuration and diagnostics on the POTS
and the U interface.
- Local and remote download of firmware upgrades.
- Support for stimulus and ETSI supplementary services.
The NT1 Plus is a network termi-
nation for the ISDN basic rate
access, which adds to the featu-
res of a standard ISDN network
termination (NT1) a dual inter-
face to analogue terminals desi-
gned for connection to POTS
(Plain Old Telephone System)
networks. These terminals inclu-
de standard phone sets, group
three fax machines, automatic
answering machines, data
modems, small Private Branch
Exchanges (PBX), Key Telephone
Systems (KTS), cordless and
DECT phones, etc.
The NT1 Plus therefore allows
network providers to overcome
a major obstacle to the diffusion
of ISDN in the Small Office And
Home Office (SOHO) and in the
residential markets: network
providers can offer a complete
ISDN service, aligned to current
regulations and, at the same
time, subscribers are not requi-
red to purchase any additional
equipment, such as digital ISDN
phones and/or terminal adap-
ters to deploy basic telephony
services.
POWER SUPPLY
The NT1 Plus has no batteries and is powered through an internal mains power supply
or from the power supplied by the network over the line pair.
Power consumption from the network is limited to 1400 mW in the worst case (one POTS
interface powered under emergency conditions).
So INTERFACE
On the So interface the NT1 Plus provides the same quality of service as a standard NT1,
including:
- full compliance to regulatory standards
- up to 8 terminals allowed on the S bus
- complete transparency to the test procedures from the exchange.
POTS INTERFACES
POTS interfaces support both pulse and DTMF dialling. Local tone generation (dial tone,
congestion and call waiting) is provided when required. Register recall and hook-flash
keys are also supported (e.g. to invoke supplementary services).
STANDARD SUPPLEMENTARY SERVICES
- Multiple Subscriber Numbers (MSN).
- Calling Line Identification Presentation (CLIP).
- Connected Line Identification Presentation (COLP).
OPTIONAL SUPPLEMENTARY SERVICES
- Call Forwarding (Unconditional - CFU, On User Busy - CFB, No Reply - CFNR).
- Call Completion on Busy Subscriber (CCBS).
- Call Waiting (CW).
- Malicious Call Identification (MCID).
- Calling Line Identification Restriction (CLIR).
- Line Identification Restriction (COLR).
- 3-Pty Conference (3PC).
- Closed User Group (CUG).
- Call Hold (CH).
- Advice of Charge (AOC).
TE8TE1
"U"
"S"
TE2
ISDN
ISDN termination with dual analogue interfaces
NT-IP
The NT-IP is a network termination for the
ISDN basic rate access, which adds to the
features commonly found in a standard ISDN
network termination (NT1), two standard
telephone ports and an RS232 interface to
provide a fully digital, fast and reliable con-
nection to a PPP terminal server, such as
Internet Service Provider (ISP), remote
access, e-mail access server, etc.
BENEFITS
AO/DI
AO/DI, unlike standard ISDN, actually makes
three communications channels available to
the user. If, for example, both B-Channels are
bonded for a data session, and an incoming
call is received, one of the B-Channels is
automatically freed up for the telephone call.
If a fax call also comes in, the remaining B-
Channel may be allocated to the fax call. The
data session continues on the D-Channel
until a B-Channel is available, if needed.
TELEPHONY SERVICES
When connecting to the ISDN over a NT-IP,
subscribers deploy ISDN basic telephony ser-
vices without any need to purchase additio-
nal equipment (digital phones and/or termi-
nal adapters), and can keep using standard
devices, such as standard phone sets, cord-
less phones, analogue modems, group 3 fax
machines, automatic answering machines,
analogue micro PBX’s etc.
The NT-IP also supports a range of supple-
mentary telephony services (call hold, call
waiting, 3-party conferencing, call forwar-
ding, etc.).
DIAL-UP DATA SERVICES
A fully digital data service is provided by the
NT-IP straight to the COM port of a PC with
unrivalled performance compared to analo-
gue modems, including sub-second call
setup times and a virtually error free data
channel to the service provider at a guaran-
teed bit rate. No additional hardware or
software need to be installed to operate the
service.
NATIVE ISDN SERVICES
Additionally, subscribers connect native ISDN
terminals, such as videophony terminals, group
4 fax machines, etc., directly on the S-bus.
OPERATOR ADVANTAGES
Being an integrated access device, the NT-IP
offers the telecom operators simplified provi-
sioning and installation.
The NT-IP fully supports remote monitoring,
configuration, maintenance, and firmware
upgrade: operators can therefore offer their
customers a faster maintenance service at a
lower cost by limiting the number of on-site
interventions.
Enhanced ISDN network termination for Internet access and analogue phones
FEATURE SUMMARY
STANDARD NT1
- 2-wire interface on the U reference point.
- 4-wire user bus on the S/T reference
point.
POTS INTERFACES
Electrical:
- PCM speech coder/decoder, according to
G.711, A-law.
- Pulse and/or tone dialling, metering
pulse generation.
- One port available in emergency condi-
tions (mains off).
- Local tone generation (dial tone, conge-
stion and call waiting) is provided when
required.
- Register recall or hook-flash keys are
also supported to invoke supplementary
services.
- To allow operation with a wide range of
terminal, the NT-IP features high on-
hook battery voltage and high voltage
ringing even on heavy ringer loads (~3
REN’s).
Additional functions can be provided
according to customer specifications.
STANDARD SUPPLEMENTARY SERVICES
FOR THE POTS INTERFACES
- The POTS ports of the NT-IP support the
Multiple Subscriber Numbers (MSN), the
Calling Line Identification Presentation
(CLIP), Connected Line Identification
Presentation (COLP) supplementary ser-
vices.
ADDITIONAL SUPPLEMENTARY SERVICES
- The NT-IP supports supplementary servi-
ces based on stimulus procedures.
- Particularly, the following ETSI functional
protocol services are supported: Call
Hold (CH), Call Waiting (CW), Advice of
Charge (AOC), 3-Pty Conference (3-PTY),
Calling Line Identification Restriction
(CLIR) , Explicit Call Transfer (ECT) and
Malicious Call Identification (MCID).
AO/DI
AO/DI allows the user to maintain a conti-
nuos connection without continuously tying
up a circuit. In its Dynamic ISDN aspect,
AO/DI allows the B-Channels, and thus the
circuit-switched network and connected
hardware, to be dynamically allocated to
end users only as actually needed.
RS232 PORT
- PPP asynchronous to synchronous con-
version
- Enhanced AT command set.
- Handling of control signals (DTR, DSR,
CTS, etc.).
- Implicit rate adaption via the HDLC fra-
ming.
Other major features of the RS-232 port
include:
- Selectable hardware (CTS) or software
(X-on, X-off) flow control.
One directory number (DN) can be alloca-
ted for the RS232 port.
- Internet Access on a single B-channel or
on both B-channels using the multilink
PPP (MP) protocol
- Always on /Dynamic ISDN (AO/DI)
- Bandwidth on Demand (BOD)
- Bandwidth Allocation Protocol and
Bandwidth Allocation Control Protocol
(BAP/BACP)
- Peer to peer communication according to
ITU-T V.120 or V.110 recommendations
- Enhanced AT command
- Automatic bit rate recognition up to
230,4 kb/s
PPP OPERATION
- Single link PPP
- Multilink PPP
- Call Bumping
- Bandwidth On Demand
- The Bandwidth Allocation Protocol
- Always On/Dynamic ISDN
1 2
POWER RS 232
SS
U
a/b
a/b
RS232
S-BUS
U
To other
S-BUS devices
Promary
Rate
Access
Internet
Service Provider
ISDN
So INTERFACE
On the So interface the NT IP provides the same quality of service as a standard NT1,
including:
- Full compliance to regulatory standards.
- Up to 8 terminals allowed on the S bus.
- Complete transparency to the test procedures from the exchange.
So POWER SUPPLY
Standard PS1 phantom supply to the So bus is provided when the local a.c. power is
available.
U INTERFACE
The NT-IP fully complies to ETS Technical Report TS 102 080, except for higher power
consumption when emergency power is provided to the POTS port.
SYSTEM OPERATION
LEDS
The following status monitoring LEDs are located near the front panel:
PWR A.C. power supplied
U Line interface connected
DTR Data Terminal Ready (C108)
DCD Line status or Carrier detect (C109)
CTS Clear to Send (C106)
TD Transmit Data (C103)
RD Receive Data (C104)
B1 Channel B1 status
B2 Channel B1 status
SWITCHES
On the bottom side of the device two dip switches are available to:
- select the So bus configuration (short passive/extended)
- include terminating resistors for the So bus (100 Ω/ off)
All other settings are made via configuration procedures.
Aethra
NT-IP
CONNECTIONS
So bus Two modular RJ-45 ISO8877 connectors (8p/4c)
POTS Two modular RJ-11 connectors (6p/2c)
2-pole spring terminal
RS232 port DB-9 connector
Line pair (U) 2-pole screw terminal or RJ-45
Power supply Plug (external feeder)
This document contains preliminary information subject to change without notice.
© Copyright Aethra Telecomunicazioni Srl 1998.
Design: Uttinacci & Turano - Roma
Aethra Telecomunicazioni
Internet: www.aethra.com
Email: [email protected]
Headquarters:
Ancona 60020 - Italy
Via Matteo Ricci, 10
Telephone: [phone]
Fax: [phone]
Video: +39.071.2189701/2/3/4
Offices:
Turin, Milan, Venice, Bologna,
Rome, Naples, Palermo,
Miami, Dubai, Beijing,
Santiago, Lima, Paris
Aethra - Ancona
ISO9001 Certified
Code 071063001GB Rev.0 (03/01)
INSTALLATION AND CONFIGURATION
Local and Remote installation and confi-
guration procedures are available through
a DTMF phone either connected to one of
the POTS interfaces or from a “secured”
ISDN access, through a normal telephone
or a PC connected to a NT-IP or an Aethra
TA-INET or TA-IP or Front End. Some para-
meters related to the RS-232 port can
only be configured using AT-commands.
LOCAL AND REMOTE MAINTENANCE
The NT-IP provides a list of diagnostic
features:
- Download of firmware upgrades.
- Remote diagnostics for POTS interfaces.
- ringing voltage
- microphone current
- capacity measurement on
the POTS interfaces
- short circuit control.
TECHNICAL SPECIFICATIONS
Line interface
Line codes 2B1Q or 4B3T
Standard compliance TS 102 080
Power consumption max 1.4 W
Range up to 1kΩ(V remote supply > 90Vdc)
RS232 port
Control circuits TXD,RXD,RTS,CTS,DSR,DTR,DCD
Data rate up to 230.4 kbit/s
Access protocol PPP, internal async to sync converter, V120, V110
Dialling mode Hayes®AT command set
POTS interfaces
Dialling mode DTMF, pulse
Impedance 600Ωor complex (optional)
Speech quality Q.552
No load voltage < 60 V
d.c. load from 0 to 800Ω
Ringing Generator
Ringing Voltage > 40 V / 2kΩ
Ringing load approx. 3 REN
Frequency 25 Hz, asymmetrical
Max distortion 10%
Reference Standard for Environmental Quality
Safety EN60950 (oct. 96)
EMC and protections ETS 300 047, ETS 300 386-2-2
Transport ETS 300 019-1-1 class 1.2
Storage ETS 300 019-1-2 class 2.2
Operation ETS 300 019-1-3 class 3.2
Overvoltages protection exceeds ITU-T K21
Mechanical
Dimensions 180x140x45 mm.
Weight 455 gr.
Power Supply
Current <100 mA
Voltage 90÷250 Vac, 50÷60 Hz
Operating System Requirements
Windows 95, 98, 98 SE, ME, 2000, NT4, Linux, Macintosh

Aethra
NT1 Plus
SWITCH SETTINGS
The front panel has a removable cover to
access switch settings for:
- So bus configuration (short passive/exten-
ded)
- emergency power (one of the POTS inter-
faces or the So bus)
- terminating resistors for the So Bus.
INSTALLATION AND CONFIGURATION
Local and Remote installation and confi-
guration procedures are available through
a DTMF phone either connected to one of
the POTS interfaces or from a “secured”
ISDN access, through a normal telephone
or a PC connected to an Aethra TA1008
terminal adapter or an Aethra Front End
LOCAL AND REMOTE MAINTENANCE
The NT1 Plus provides a list of diagnostic
features:
- download of firmware upgrades
- remote diagnostics for POTS interfaces
- ringing voltage
- microphone current
- capacity measurement on
the POTS interfaces
- short circuit control.
All rights reserved. Technical specifications are subject to change without prior notice.
Design: Uttinacci & Turano - Roma
Aethra Telecomunicazioni
Internet: www.aethra.com
Email: [email protected]
Headquarters:
Ancona 60020 - Italy
Via Matteo Ricci, 10
Telephone: [phone]
Fax: [phone]
Video: +39.071.2189701/2/3/4
Offices:
Turin, Milan, Venice, Bologna,
Rome, Naples, Palermo,
Miami, Dubai, Beijing,
Santiago, Lima, Paris
Aethra - Ancona
ISO9001 Certified
Code 071063000GB Rev.0 (03/01)
CONNECTIONS
So bus Two modular connectors 8p/4c RJ-45, ISO8877
Terminal blocks (optional)
POTS Two modular connectors 6p/2c RJ-11
Terminal blocks
Line pair (U) 2-pole terminal block, or RJ-11
Mains supply Internal power supply, bipolar cord
TECHNICAL SPECIFICATIONS
Line interface
Line codes 2B1Q or 4B3T
Standard compliance TS 102 080
Power consumption max 1.4 W
Range up to 1kΩ(V remote supply > 90Vdc)
POTS interfaces
Dialling mode DTMF, pulse
Impedance 600Ωor complex (optional)
Speech quality Q.552
No load voltage < 60 V
d.c. load from 0 to 800Ω
Ringing Generator
Ringing Voltage > 40 V / 2kΩ
Ringing load approx. 3 REN
Frequency 25 Hz, asymmetrical
Max distortion 10%
Reference Standard for Environmental Quality
Safety EN60950 (oct. 96)
EMC and protections ETS 300 047, ETS 300 386-2-2
Transport ETS 300 019-1-2 class 1.2
Storage ETS 300 019-1-1 class 2.2
Operation ETS 300 019-1-3 class 3.2
Overvoltages protection exceeds ITU-T K21
Mechanical
Dimensions 212x160x57 mm.
Weight 1100 gr.
Power Supply
Current <100 mA
Voltage 230 Vac + 10% - 15% 50 Hz
NT1 Plus
FUNCTIONAL CHARACTERISTICS
- A full ISDN service is to be provided to terminals connected to the So bus.
- NT1 Plus shall operate with all existing analogue equipment, and it shall support
supplementary telephony services (3-way conferencing, call diversion, call waiting, etc.).
- Emergency operation is to be guaranteed to one POTS interface.
- Provision of convenient remote configuration, maintenance and diagnostics and the
capability to remotely download the operating firmware.
- Support to both 2B1Q and 4B3T line code.
STANDARD NT1 FEATURES
- 2-wire interface on the U reference point.
- 4-wire user bus on the S/T reference point.
- Emergency power supply to user terminals.
ANALOGUE TERMINALS INTERFACE FEATURES
- Pulse and/or tone dialling.
- 25 Hz low distortion asymmetric ringing signal.
- PCM speech coder, according to G.711, A-law.
- Emergency power to one POTS interface.
ADDITIONAL FEATURES
- Easy installation, operation and maintenance.
- Local or remote configuration through a standard DTMF phone.
- Local or remote maintenance, including configuration and diagnostics on the POTS
and the U interface.
- Local and remote download of firmware upgrades.
- Support for stimulus and ETSI supplementary services.
The NT1 Plus is a network termi-
nation for the ISDN basic rate
access, which adds to the featu-
res of a standard ISDN network
termination (NT1) a dual inter-
face to analogue terminals desi-
gned for connection to POTS
(Plain Old Telephone System)
networks. These terminals inclu-
de standard phone sets, group
three fax machines, automatic
answering machines, data
modems, small Private Branch
Exchanges (PBX), Key Telephone
Systems (KTS), cordless and
DECT phones, etc.
The NT1 Plus therefore allows
network providers to overcome
a major obstacle to the diffusion
of ISDN in the Small Office And
Home Office (SOHO) and in the
residential markets: network
providers can offer a complete
ISDN service, aligned to current
regulations and, at the same
time, subscribers are not requi-
red to purchase any additional
equipment, such as digital ISDN
phones and/or terminal adap-
ters to deploy basic telephony
services.
POWER SUPPLY
The NT1 Plus has no batteries and is powered through an internal mains power supply
or from the power supplied by the network over the line pair.
Power consumption from the network is limited to 1400 mW in the worst case (one POTS
interface powered under emergency conditions).
So INTERFACE
On the So interface the NT1 Plus provides the same quality of service as a standard NT1,
including:
- full compliance to regulatory standards
- up to 8 terminals allowed on the S bus
- complete transparency to the test procedures from the exchange.
POTS INTERFACES
POTS interfaces support both pulse and DTMF dialling. Local tone generation (dial tone,
congestion and call waiting) is provided when required. Register recall and hook-flash
keys are also supported (e.g. to invoke supplementary services).
STANDARD SUPPLEMENTARY SERVICES
- Multiple Subscriber Numbers (MSN).
- Calling Line Identification Presentation (CLIP).
- Connected Line Identification Presentation (COLP).
OPTIONAL SUPPLEMENTARY SERVICES
- Call Forwarding (Unconditional - CFU, On User Busy - CFB, No Reply - CFNR).
- Call Completion on Busy Subscriber (CCBS).
- Call Waiting (CW).
- Malicious Call Identification (MCID).
- Calling Line Identification Restriction (CLIR).
- Line Identification Restriction (COLR).
- 3-Pty Conference (3PC).
- Closed User Group (CUG).
- Call Hold (CH).
- Advice of Charge (AOC).
TE8TE1
"U"
"S"
TE2
ISDN
ISDN termination with dual analogue interfaces
NT-IP
The NT-IP is a network termination for the
ISDN basic rate access, which adds to the
features commonly found in a standard ISDN
network termination (NT1), two standard
telephone ports and an RS232 interface to
provide a fully digital, fast and reliable con-
nection to a PPP terminal server, such as
Internet Service Provider (ISP), remote
access, e-mail access server, etc.
BENEFITS
AO/DI
AO/DI, unlike standard ISDN, actually makes
three communications channels available to
the user. If, for example, both B-Channels are
bonded for a data session, and an incoming
call is received, one of the B-Channels is
automatically freed up for the telephone call.
If a fax call also comes in, the remaining B-
Channel may be allocated to the fax call. The
data session continues on the D-Channel
until a B-Channel is available, if needed.
TELEPHONY SERVICES
When connecting to the ISDN over a NT-IP,
subscribers deploy ISDN basic telephony ser-
vices without any need to purchase additio-
nal equipment (digital phones and/or termi-
nal adapters), and can keep using standard
devices, such as standard phone sets, cord-
less phones, analogue modems, group 3 fax
machines, automatic answering machines,
analogue micro PBX’s etc.
The NT-IP also supports a range of supple-
mentary telephony services (call hold, call
waiting, 3-party conferencing, call forwar-
ding, etc.).
DIAL-UP DATA SERVICES
A fully digital data service is provided by the
NT-IP straight to the COM port of a PC with
unrivalled performance compared to analo-
gue modems, including sub-second call
setup times and a virtually error free data
channel to the service provider at a guaran-
teed bit rate. No additional hardware or
software need to be installed to operate the
service.
NATIVE ISDN SERVICES
Additionally, subscribers connect native ISDN
terminals, such as videophony terminals, group
4 fax machines, etc., directly on the S-bus.
OPERATOR ADVANTAGES
Being an integrated access device, the NT-IP
offers the telecom operators simplified provi-
sioning and installation.
The NT-IP fully supports remote monitoring,
configuration, maintenance, and firmware
upgrade: operators can therefore offer their
customers a faster maintenance service at a
lower cost by limiting the number of on-site
interventions.
Enhanced ISDN network termination for Internet access and analogue phones
FEATURE SUMMARY
STANDARD NT1
- 2-wire interface on the U reference point.
- 4-wire user bus on the S/T reference
point.
POTS INTERFACES
Electrical:
- PCM speech coder/decoder, according to
G.711, A-law.
- Pulse and/or tone dialling, metering
pulse generation.
- One port available in emergency condi-
tions (mains off).
- Local tone generation (dial tone, conge-
stion and call waiting) is provided when
required.
- Register recall or hook-flash keys are
also supported to invoke supplementary
services.
- To allow operation with a wide range of
terminal, the NT-IP features high on-
hook battery voltage and high voltage
ringing even on heavy ringer loads (~3
REN’s).
Additional functions can be provided
according to customer specifications.
STANDARD SUPPLEMENTARY SERVICES
FOR THE POTS INTERFACES
- The POTS ports of the NT-IP support the
Multiple Subscriber Numbers (MSN), the
Calling Line Identification Presentation
(CLIP), Connected Line Identification
Presentation (COLP) supplementary ser-
vices.
ADDITIONAL SUPPLEMENTARY SERVICES
- The NT-IP supports supplementary servi-
ces based on stimulus procedures.
- Particularly, the following ETSI functional
protocol services are supported: Call
Hold (CH), Call Waiting (CW), Advice of
Charge (AOC), 3-Pty Conference (3-PTY),
Calling Line Identification Restriction
(CLIR) , Explicit Call Transfer (ECT) and
Malicious Call Identification (MCID).
AO/DI
AO/DI allows the user to maintain a conti-
nuos connection without continuously tying
up a circuit. In its Dynamic ISDN aspect,
AO/DI allows the B-Channels, and thus the
circuit-switched network and connected
hardware, to be dynamically allocated to
end users only as actually needed.
RS232 PORT
- PPP asynchronous to synchronous con-
version
- Enhanced AT command set.
- Handling of control signals (DTR, DSR,
CTS, etc.).
- Implicit rate adaption via the HDLC fra-
ming.
Other major features of the RS-232 port
include:
- Selectable hardware (CTS) or software
(X-on, X-off) flow control.
One directory number (DN) can be alloca-
ted for the RS232 port.
- Internet Access on a single B-channel or
on both B-channels using the multilink
PPP (MP) protocol
- Always on /Dynamic ISDN (AO/DI)
- Bandwidth on Demand (BOD)
- Bandwidth Allocation Protocol and
Bandwidth Allocation Control Protocol
(BAP/BACP)
- Peer to peer communication according to
ITU-T V.120 or V.110 recommendations
- Enhanced AT command
- Automatic bit rate recognition up to
230,4 kb/s
PPP OPERATION
- Single link PPP
- Multilink PPP
- Call Bumping
- Bandwidth On Demand
- The Bandwidth Allocation Protocol
- Always On/Dynamic ISDN
1 2
POWER RS 232
SS
U
a/b
a/b
RS232
S-BUS
U
To other
S-BUS devices
Promary
Rate
Access
Internet
Service Provider
ISDN
So INTERFACE
On the So interface the NT IP provides the same quality of service as a standard NT1,
including:
- Full compliance to regulatory standards.
- Up to 8 terminals allowed on the S bus.
- Complete transparency to the test procedures from the exchange.
So POWER SUPPLY
Standard PS1 phantom supply to the So bus is provided when the local a.c. power is
available.
U INTERFACE
The NT-IP fully complies to ETS Technical Report TS 102 080, except for higher power
consumption when emergency power is provided to the POTS port.
SYSTEM OPERATION
LEDS
The following status monitoring LEDs are located near the front panel:
PWR A.C. power supplied
U Line interface connected
DTR Data Terminal Ready (C108)
DCD Line status or Carrier detect (C109)
CTS Clear to Send (C106)
TD Transmit Data (C103)
RD Receive Data (C104)
B1 Channel B1 status
B2 Channel B1 status
SWITCHES
On the bottom side of the device two dip switches are available to:
- select the So bus configuration (short passive/extended)
- include terminating resistors for the So bus (100 Ω/ off)
All other settings are made via configuration procedures.
Aethra
NT-IP
CONNECTIONS
So bus Two modular RJ-45 ISO8877 connectors (8p/4c)
POTS Two modular RJ-11 connectors (6p/2c)
2-pole spring terminal
RS232 port DB-9 connector
Line pair (U) 2-pole screw terminal or RJ-45
Power supply Plug (external feeder)
This document contains preliminary information subject to change without notice.
© Copyright Aethra Telecomunicazioni Srl 1998.
Design: Uttinacci & Turano - Roma
Aethra Telecomunicazioni
Internet: www.aethra.com
Email: [email protected]
Headquarters:
Ancona 60020 - Italy
Via Matteo Ricci, 10
Telephone: [phone]
Fax: [phone]
Video: +39.071.2189701/2/3/4
Offices:
Turin, Milan, Venice, Bologna,
Rome, Naples, Palermo,
Miami, Dubai, Beijing,
Santiago, Lima, Paris
Aethra - Ancona
ISO9001 Certified
Code 071063001GB Rev.0 (03/01)
INSTALLATION AND CONFIGURATION
Local and Remote installation and confi-
guration procedures are available through
a DTMF phone either connected to one of
the POTS interfaces or from a “secured”
ISDN access, through a normal telephone
or a PC connected to a NT-IP or an Aethra
TA-INET or TA-IP or Front End. Some para-
meters related to the RS-232 port can
only be configured using AT-commands.
LOCAL AND REMOTE MAINTENANCE
The NT-IP provides a list of diagnostic
features:
- Download of firmware upgrades.
- Remote diagnostics for POTS interfaces.
- ringing voltage
- microphone current
- capacity measurement on
the POTS interfaces
- short circuit control.
TECHNICAL SPECIFICATIONS
Line interface
Line codes 2B1Q or 4B3T
Standard compliance TS 102 080
Power consumption max 1.4 W
Range up to 1kΩ(V remote supply > 90Vdc)
RS232 port
Control circuits TXD,RXD,RTS,CTS,DSR,DTR,DCD
Data rate up to 230.4 kbit/s
Access protocol PPP, internal async to sync converter, V120, V110
Dialling mode Hayes®AT command set
POTS interfaces
Dialling mode DTMF, pulse
Impedance 600Ωor complex (optional)
Speech quality Q.552
No load voltage < 60 V
d.c. load from 0 to 800Ω
Ringing Generator
Ringing Voltage > 40 V / 2kΩ
Ringing load approx. 3 REN
Frequency 25 Hz, asymmetrical
Max distortion 10%
Reference Standard for Environmental Quality
Safety EN60950 (oct. 96)
EMC and protections ETS 300 047, ETS 300 386-2-2
Transport ETS 300 019-1-1 class 1.2
Storage ETS 300 019-1-2 class 2.2
Operation ETS 300 019-1-3 class 3.2
Overvoltages protection exceeds ITU-T K21
Mechanical
Dimensions 180x140x45 mm.
Weight 455 gr.
Power Supply
Current <100 mA
Voltage 90÷250 Vac, 50÷60 Hz
Operating System Requirements
Windows 95, 98, 98 SE, ME, 2000, NT4, Linux, Macintosh