TEW4976 Datasheet, PDF (1/1 Pages) Filtran LTD – CEPT/T1 Output Transformer

CEPT/T1
Output Transformer
TEW4976 is designed and
recommended to be used as a
transmit transformer in T1 and
CEPT applications with the
following devices:
CRYSTAL CS61535A, CS61574A,
CS61575
CS6158A.
Level One LXT304A, LXT305A
Complies with ANSI T1.408 and
CCITT I.431.
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
MECHANICAL
TEW4976
WHITE DOT
AT PIN 1
All dimensions
are in inches
6
Device
4
1
2 Line
3
ELECTRICAL SPECIFICATIONS
TEW4976 - 1
-2
-3
-4
Line Impedance
(1 - 3)
(1 - 2)
100 Ω
Turns ratio
(6 - 4) : (1 - 3)
(6 - 4) : (1 - 2)
1: 1.16 c.t
Inductance
(mH)
(1 - 3)
> 1.5
Pulse Mask
T1
Longitud. Bal.
(dB ) 50 - 1.544 KHz > 40
Dielectric Strength (Vrms)
4000
75 Ω
1 : 1 c.t
> 1.2
CEPT
> 40
4000
120 Ω
1 : 1.26 c.t
> 1.8
CEPT
> 40
4000
120 Ω
75 Ω
1 : 1.26
1:1
>1.8
CEPT
> 40
4000
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3,
Tel : [phone] Fax : [phone]
2-17