TEW4855 Просмотр технического описания (PDF) - Filtran LTD

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TEW4855

ISDN U-BUS Input/Output Transformer

Filtran LTD 

ISDN

U-BUS Input/Output Transformer

TEW4855

TEW4855 is designed to inter-

face with the subscribers prem-

ises (NT) and the 2- wire line

side of the Central Office Equip-

ment (LT) in the ISDN Network.

TEW4855 meets the electrical

specifications of ANSI TI.601-

1988 and is approved for the

Mitel MT8910 DSLIC device.

Exceeds the requirements of:

EN60950 and EN41003

Applications:

• High performance 2B1Q line

code.

• Up to 50 mA line current.

• High insulation between line

and equipment side.

MECHANICAL

DOT AT

PIN #1

6

DEVICE

7

1

2

LINE

3

4

DIMENSIONS, Inches (mm)

P/N

LWH A B C

S

TEW4855 0.87 0.83 0.63 0.60 0.20 0.12 0.025

(22.0) (21.0) (16.0)(15.3) (5.1) (3.0) (0.64)

ELECTRICAL

Line Impedance

Inductance

Leakage Inductance

(1-4)

(6-7)

Distributed Capacitance

Winding Resistance

Turns Ratio

Longitudinal Balance

DC Capability (Line Side)

Dielectric Strength

(1-2)+(3-4)

(1-2)+(3-4)

(6-7)

(6-7) : (1-2)+(3-4)

1 - 4 KHz

4 - 160 KHz

135 Ω

11.0 mH

< 75 µH

< 500 pF

< 3.3 Ω

< 3.0 Ω

1 : 1.3

> 60 dB

> 55 dB

50 mA

4000 V rms

short (6-7)

100 mA without damage

Filtran Limited

229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3

Tel : (613) 226-1626 Fax : (613) 226-7124

4-11

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