Brilink NT1Q

The Brilink NT1Q is a standard NTBA (Network Termination for ISDN Basic rate Access) for ISDN basic rate access. Now in its eighth generation, Sphairons proven technology is characterised by maximum reliability. State-of-the-art switching concepts guarantee low power consumption, a very compact shape and maximum cost-effectiveness.

The thoroughly practical design of the NT1Q not only simplifies the device assembly work for the subscriber, it also offers the network operator all important service and maintenance functions to ensure error-free operation.

The Brilink NT1Q forms a transition from a two-wire Uk0 to a four-wire S0 interface. This conversion is realised electronically via the hybrid circuit and echo compensation. Up to four devices without integrated power supplies can be connected if the external supply unit is used to power the NT1Q.

The data transfer takes place via line code 2B1Q. The Brilink NTBA realizes the data transfer via line code 4B3T.

• Standard NT1Q for ISDN basic rate access
• State of the art chip technology (1 chip, 3.3 V)
• Highest reliability
• Integrated or external power supply
• Very low power consumption

Interfaces

1. Uk0:
   - for connection to ISDN network
   - line code 2B1Q
   - transmission range (with noise) ≤ 4.2 km (0.4 mm)
2. S0:
   - for connection of up to 8 ISDN devices
3. Transmission range
   - short passive bus ≤ 220 m
   - point-to-point  ≤ 1100 m

General

1. Weight: 0.5 kg
2. Dimensions (H x B x T): 110 x 145 x 35 mm
3. Maximum power consumption at Uk0:
   - normal mode 450 mW
   - restrictive mode 950 mW
4. Power supply to ISDN S0 interface (40 V):
   - normal mode 4.5 W
   - restrictive mode 420 mW