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TEW4921 Datasheet(PDF) 1 Page - Filtran LTD

Part No. TEW4921
Description  CEPT /T1 Output Transformer
Download  1 Pages
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Maker  FILTRAN [Filtran LTD]
Homepage  http://www.filtran.com
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TEW4921 Datasheet(HTML) 1 Page - Filtran LTD

   
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TEW4921 is designed and ap-
proved to be used as a transmit
transformer with the Mitel
MT89760/-60B and MT89790/-
90B devices in T1 and CEPT ap-
plications.
Complies with ANSI T1.408 and
CCITT I.431., with regards to
Longitudinal Balance.
TEW4921-2 is designed for
MT89790B when operating from
a single 5 Vdc supply.
Typical applications are:
Primary rate ISDN network
nodes.
PBX or computer to
T1/CEPT Digital Trunks.
TDM Multiplexers.
Fully encapsulated in epoxy.
BABT certified for reinforced in-
sulation to EN60950 & EN41003.
Cert #: CR/T/0052
Impedance
100 & 120
75
75/120
DCR
(Ohms)
(1 - 3)
3.5
3.5
3.5
(6 - 4)
0.35
0.25
0.35
Turns ratio
(1-2):(2-3):(6 -4)
1 : 1 : 0.53
1 : 1 : 0.39
1 : 1 : 1.37
(1-2):(2-3):(6 -5)
n/a
n/a
1 : 1 : 1.12
Inductance
(mH)
(6 - 4)
> 1.0
> 0.57
> 1.5
Pulse Mask
T1 & CEPT
CEPT
CEPT
Longitud. Bal.
(dB)
50 - 1544 KHz
> 40 dB
> 40 dB
> 40 dB
Dielectric Strength, (Vrms)
4000 V
4000 V
4000 V
Temperatures
Operating
0
o to 50o C
Storage
-20
o to 80o C
TEW4921-2
WHITE
DOT
AT PIN 1
1
2
3
6
5
4
Line side
Device
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3,
2-15
Tel : (613) 226 1626 Fax : (613) 226 7124
CEPT /T1
Output Transformer
TEW4921
MECHANICAL
ELECTRICAL SPECIFICATIONS
TEW4921
TEW4921-1
TEW4921-2
TEW4921 & -1
1
2
3
6
4
Line side
Device


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