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TEW4994 Datasheet(PDF) 1 Page - Filtran LTD

Part No. TEW4994
Description  CEPT /T1 input/output Transformer
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Maker  FILTRAN [Filtran LTD]
Homepage  http://www.filtran.com
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TEW4994 Datasheet(HTML) 1 Page - Filtran LTD

   
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TEW4994 is designed to be used either as a
transmit or a receive transformer in the ISDN
primary access network, interfacing SIEMENS
PEB2235 and PEB2236 to a 75, 100 or 120 ohm
line.
When in transmit mode, connect the two primary
windings in parallel, pin 1 to 2 and pin 5 to 6.
When in receive mode, connect the two primary
windings in series, pin 5 to pin 2, thus forming a
center tap at pin 5/2.
Typical applications are:
Primary rate ISDN network nodes.
PBX or computer to T1/CEPT Digital trunks.
TDM Multiplexers.
Line Impedance
75
100
120
75/120
Inductance (mH)
(4-8)
> 2.0
> 3.4
> 2.0
> 2.0
Turns ratio
(1-5):(2-6):(4-8)
1:1:1.57
1:1:2.67
1:1: 2
1:1:2
(1-5):(2-6):(4-7)
1:1:1.57
Pulse Mask
CEPT
T1/DS1
CEPT
CEPT
Longitud. Bal.
I.431
T1.408
I.431
I.431
Return Loss
G.703
T1.408
G.703
G.703
Dielectric Strength (V rms)
1500
1500
1500
1500
DRILL 0.040
8 PLACES
GRID 0.10 x 0.10
WHITE DOT
0.45 MAX
85
14
DIA 0.025
0.10 MIN
DIMENSIONS ARE
IN INCHES
0.50 MAX
0.50
MAX
TEW4994, -1 and -2
All dimensions
are in inches
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3,
2-23
Tel : (613) 226 1626 Fax : (613) 226 7124
CEPT /T1
input/output Transformer
TEW 4994
WHITE DOT
AT PIN 1
1
5
2
6
4
Line
8
Drill
0.040"
8 Places
TEW4994-3
Com. 4
Line
75
Ω 7
120
Ω 8
1
5
2
6
MECHANICAL
ELECTRICAL SPECIFICATIONS
TEW4994
TEW4994-1
TEW4994-2
TEW4994-3


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