Aethra NT1 2000 User manual

NT1 2000
Aethra Telecomunicazioni - Internet: www.aethra.com - Email [email protected]
©Aethra - All rights reserved - With the right to modify characteristics Code 071073002GB Rev. 0 (03/01)
Aethra - Ancona
ISO9001 Certified
Headquarters:
60020 Ancona (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
The Aethra NT1 2000 is used as a network
termination for basic access to ISDN networks
and features 2-channel transmission at 64
Kbit/sec and single channel transmission at 16
Kbit/sec (2B+D) on a single line pair. The NT1
2000 makes it possible to connect up to 8 ISDN
terminations (TE) on the S/T interface, while the
terminations themselves can be powered by a
220V internal power unit connected to the mains.
The device is ETSI 300012 and CCITT I 430
compliant as concerns the technical
specifications of the S/T interface (level 1), as
well as TS 102 080 and CCITT G961 compliant as
concerns the electrical specifications of the U
interface.
FUNCTIONAL FEATURES
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Two-way transfer on the user's binding
Two-way transfer (4 wires) towards the user
installation (S/T interface)
Remote power supply to the terminal from the
exchange (in the case of AC power outage at the user's
premises the remote terminal must be configured for
telephone service)
Transfer of 4.5 W from the 220V mains to the S/T
interface for remote power supply to the terminals
Galvanic insulation between the user line pair, S/T
interface and the AC mains
Protection against excess voltage on the user pair, the
S/T interface and the 220V power supply
STANDARD FEATURES
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2-wire interface on the U reference point; three types
of connectors are available: RJ11 or RJ45 or screw
connector.
4-wire user bus on the S/T reference point with
impedance adaption
Supports up to 8 NT1 terminals with 2 power
supply modes (normal and emergency).
NT1
U
1
2
..Up to 8
S0

POWER SUPPLY
S INTERFACE
SWITCH FEATURES
The NT1 has no batteries and is powered through internal
mains power supply and from the power supplied by the
network over the line pair.
The power absorption is limited to 1100 mW in the worst
case scenario.
Impedance adaption
Full compliance with industry standards;
Up to 8 terminals allowed on the S bus;
Complete transparency of the test procedures from the
exchange.
The front panel has a removable cover to access switch
settings for:
S0 bus configuration (short passive/extended);
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8Terminating resistors for the S Bus (50 , 100
settable).
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TECHNICAL SPECIFICATIONS
CONNECTIONS
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Dimensions (in mm): 155 x 105 x 50
Weight: 0.55 kg. Circa
Supply : <100 mA
Operation: compliant with ETS 300.019-1-3 Class 3.2
Transport: compliant with ETS 300.019-1-2 Class 1.2
Storage: compliant with ETS 300.019-1-1 Class 2.2
U interface: compliant with TS 102 080
S interface: compliant with ETS 300.012
So Bus: two modular connectors 8p/8c RJ-45
ISO8877 and 4-pole spring terminal block
Line pair (U): RJ-11 or RJ-45 or 2-pole screw
connector
Mains Supply: internal power supply - bipolar cord
Supply Voltage : 220 Vac + 10% - 15% 50 Hz
Current