TEW5039 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.
TEW5039 meets the electrical re-
quirements for the
Mitel MT8972 &MT8971B/72B
devices.
Certified to EN60950 and
EN41003.
Applications:
•Up to 50 mA line current.
•TEW5039 meets the
requirements of BS6301 for
reinforced insulation,
clearance and creepage
distances between the line
and the device side.
•TEW5039-1 meets the
requirements for pollution
class 2.
Issue; B 94/12/14 TEW5039.chp
Line Impedance 135 Ω135 Ω
Inductance (6-7) > 30mH > 30 mH
Leakage Inductance (6-7) < 95 µH<95µH
Winding Resistance (1-2) & (3-4) 1.5 Ωea 3.4 Ωea
(6-7) 5.5 Ω6.7 Ω
Turns Ratio (6-7) : (1-2) : (3-4) 4 : 1 : 1 4 : 1 : 1
DC Capability (Line Side) (1-4) 50 mA 50 mA
Dielectric Strength 4000 V rms 4000V rms
P/N L W H A B C S
TEW5039 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)
DIMENSIONS, Inches (mm)
DOT AT
PIN #1
6
7
1
2
3
4
LINE
DEVICE
ISDN U-BUS/DNIC Input/Output Transformer TEW5039
Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 4-15
Tel : (613) 226-1626 Fax : (613) 226-7124
MECHANICAL
ELECTRICAL TEW5039 TEW5039-1
