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PDF TEW4994 Data sheet ( Hoja de datos )
| Número de pieza | TEW4994 | |
| Descripción | CEPT /T1 input/output Transformer | |
| Fabricantes | Filtran | |
| Logotipo |  |
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CEPT /T1
www.DataSheet4U.com
input/output Transformer
TEW 4994
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
MECHANICAL
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.
0.50
MAX
0.50 MAX
DIMENSIONS ARE
IN INCHES
0.10 MIN
DIA 0.025
All dimensions
are in inches
0.45 MAX
85
WHITE DOT
14
WHITE DOT
AT PIN 1
DRILL 0.040
8 PLACES
GRID 0.10 x 0.10
Drill
0.040"
8 Places
41
5
Line
2
86
TEW4994, -1 and -2
Com. 4
Line
75 Ω 7
120 Ω 8
1
5
2
TEW4994-3
6
ELECTRICAL SPECIFICATIONS
Line Impedance
Inductance (mH)
(4-8)
Turns ratio
(1-5):(2-6):(4-8)
(1-5):(2-6):(4-7)
Pulse Mask
Longitud. Bal.
Return Loss
Dielectric Strength (V rms)
TEW4994
75 Ω
> 2.0
1:1:1.57
CEPT
I.431
G.703
1500
TEW4994-1
100 Ω
> 3.4
1:1:2.67
T1/DS1
T1.408
T1.408
1500
TEW4994-2
120 Ω
> 2.0
1:1: 2
CEPT
I.431
G.703
1500
TEW4994-3
75/120 Ω
> 2.0
1:1:2
1:1:1.57
CEPT
I.431
G.703
1500
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3,
Tel : (613) 226 1626 Fax : (613) 226 7124
2-23
1 page | ||
| Páginas | Total 1 Páginas | |
| PDF Descargar | [ Datasheet TEW4994.PDF ] | |
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