TEW5281 Datasheet, PDF (1/1 Pages) Filtran LTD – CEPT /T1 Input Transformer

CEPT /T1
Input Transformer
TEW5281
TEW5281 is designed and ap-
proved to be used as a Receive
Transformer in T1 and CEPT ap-
plications with the following de-
vices:
– Dallas
– PMC -Sierra
– AT&T
– EXAR
DS2187
PM4341 T1X
PM6431 E1
T729O
T5683
TEW5281-3 is designed to be
used as an input transformer for:
– Dallas
DS5151Q
DS5153Q
MECHANICAL
Complies with ANSI T1.408 and
CCITT I.431 with regards to
Longitudinal Balance, and with
T1.408, G.703 and BS6328 for
the Return Loss.
Typical applications are:
• Primary rate ISDN network
nodes.
• PBX or computer to
T1/CEPT Digital Trunks.
• TDM Multiplexers.
BABT certified for reinforced
insulation to EN60950 &
EN41003
Cert #: CR/T/0052
WHITE
DOT
AT PIN 1
6
Line side
4
1
2 ^Device
3
ELECTRICAL SPECIFICATIONS
Line Impedance
DCR (Ohms) nom
nom
Turns Ratio
Inductance (mH)
Pulse Mask
Longitud. Bal.
Return Loss
(1 - 3)
(6 - 4)
(6 - 4):(1 - 3)
( 6 - 4)
Dielectric Strength (Vrms)
TEW5281-1
100, 120 Ω
1.55
0.85
1:2
> 3.5
T1 & CEPT
T1.408 & I.731
T1.408
G.703
4000
-2
75 Ω
1.11
0.55
1:2
> 0.7
CEPT
I.431
G.703
BS6328
4000
-3
75,100
120
0.8
0.7
1:1
1.8
T1 & CEPT
T1.408 & I.731
T1.408 & G.703
4000
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3,
Tel : [phone] Fax : [phone]
2-30