scope the TPW4671 transformer is de- signed to interface with the sub- scribers premises (nt) and the 2- wire line side of the central office equipment (lt) in the isdn network. TPW4671 meets the electrical specifications of ansi ti.601- 1988 and is approved for the mitel mt8910 dslic device. isdn u-bus input/output transformer TPW4671 filtran limited 229 colonnade road, nepean, ontario, canada. k2e 7k3 4-9 tel : (613) 226 1626 fax : (613) 226 7124 issue: e 94/12/14 TPW4671.chp line impedance 135 w inductance (2-11)+(1-12) 11.0mh leakage inductance (8-5) < 75 m h winding capacitance (2-11)+(1-12) < 500 pf longitudinal balance 1 - 4 khz > 6 5 d b 4 - 160 khz > 5 8 d b dc capability (line side) 50ma dielectri c strengt h 200 0 v rm s mechanical dot at pin 1 electrical
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