Overview:
ISDN NT1Plus supplies 2-wire bi-directional transferring ability of 2B+D and provides hig

Overview:
ISDN NT1Plus supplies 2-wire bi-directional transferring ability of 2B+D and provides high-quality internet access, data transmission service and dials up to internet via isdn network with a high-speed data rate of 64Kbps and 128Kbps
Feature:
Has cold start and warm start, and fixed timer and self-adapt time provides point-to-point and point-to-multipoint connections support reverse polarity for analog ports(for call metering) directly accesses analog services such as ordinary phone, G3 fax, modem, etc
one analog phone or one ISDNphone can work in the case of power failure
Supports supplementary service such as msn, SUB, CW 3pty, etc.
Call restriction function
A or u law selectable by pots
Supports RVS-COM ISDN application packets very strong compatibility: supports various switchers supports caller ID.FSK type I or DTMF mode selectable by POTS
Keeps the link status while switching between local power and remote power, and the switching is automatic complies with international and national standards high integrity circuit and stable quality
Network Interface

U Interface:

Line Code: 2B1Q, ITU-T G.961, ETR 080, ANSI T1.601
Data Rate: 160KBPS
Startup Link Time: Cold start-3 seconds typical; warm start-110 million -second typical
Termination Resistance: 135, distance range: > 5.5 kilometers
Switch Compatibility: EURO ISDN DSS1
Connector: RJ45

S/T interface:

Line Coding: AMI code, per ITU-T I.430
Termination Resistance: 50 ohm, 100ohm, No termination
Bus connection: Point-to-point, short passive bus, extended passive bus
Connector: RJ45
Power source: Output voltage at S-interface: 42V