Network Terminator (Isdn Nt1 Device)

We are making, exporting and supplying of Network Terminator (ISDN NT1 Device) from Gurgaon, Haryana, India. This isdn nt1 device forms the interface between the telephone and the subscribers, and as such, fulfills the following functions. Data transmission, i.e. Conversion from 2-wire to 4-wire transmission. Power feeding of subscribers. Switching between normal mode and restricted mode. This device module has the following interfaces: U interface (a/b wire, exchange side) S interface (subscriber side) P interface, device connection for the external power supply 240VAC (Power Pack) 40VDC (Rack Version) 1.2 General functional description The electronics of this device has the following functions: Change-over of the power supply between Normal and Restricted mode. nt1 device conversion of the signals (Codes, Level) between U interface and S interface Galvanic isolation & Safeguarding the full duplex connection to the exchange by maintaining adequate signal quality. Also has a capability to support exchanges with no or insufficient remote power feeding. Keep slide switch SW at position Ul, if power available & fed to UNT is well within range (40-115V) OR else keep at position U2, if power available & fed to UNT is Low or Zero. Easy Access nt1 terminates the line at the customer premises and provides 2 S/T interfaces for digital access. It is ideally suited for high-quality voice connectivity with isdn phones as well as instant high-speed internet access through modem.