TFS2574 Datasheet, PDF (1/1 Pages) Filtran LTD – T1/CEPT Input Transformer

T1/CEPT
Input Transformer
TFS 2574
TFS2574
T1
Intput Transformer
Through Hole
Standard .................................................... 2-10
TFS 2574 is specifically designed for
use as a Line Input Transformer in
T1/CEPT applications.
It has been approved by MITEL for
use with their MH89760 and
MH89790 devices.
TFS2574 is available in five ver-
sions: - 0, -2, -3, -4 and -5 for 100,
120 and 75/120Ω line impedances.
Also suitable as Input/Ouput trans-
former for other makes of T1/CEPT
interface devices.
Typical applications are:
• PBX or computer to T1/CEPT
Digital Trunks.
• High speed data link using
T1/CEPT Digital Trunk.
• TDM Multiplexers.
• ISDN Primary Rate.
MECHANICAL
com 1
Line 75 8
120 7
TFS2574-4
3
device
6
4
device
5
TFS2574 , -2 , -3 , -5
3
1
Line
8
device
6
4
device
5
Hole arrangement
View in mounting direction
All dimensions
are in inches
ELECTRIAL SPECIFICATIONS
Line Impedance:
T1 (MH89760)
CEPT(MH89790)
DCR (Ohms)
(1 - 8)
(3 - 6) & (4 - 5)
Inductance (mH)
(1 - 8)
(1 - 7)
Turns Ratio
(1 - 8):(3 - 6):(4 - 5)
(1 - 7):(1 - 8)
Dielectric Strength (V rms)
Applicable documents:
Longitudinal Bal.
ANSI T1.408
CCITT I.431
Return Loss
ANSI T1.408
CCITT G.703
BT BS6328
DIA 0.060"
DIA 0.047"
TFS2574
-2
-3
-4
-5
100Ω
75Ω
120Ω
120Ω 75/120Ω
75Ω
0.6
0.37
0.6
0.41
0.41
0.7
0.64
0.6
0.62
0.75
> 2.2mH > 1.07mH > 1.5mH > 1.20mH > 0.8mH
> 1.9mH
1:1:1
1.25:1:1 1.25:1:1
1:1:1
1.26:1
1:1:1
1500
1500
1500
1500
1500
yes
n/a
n/a
n/a
n/a
yes
yes
yes
yes
yes
yes
n/a
n/a
n/a
n/a
yes
yes
yes
yes
yes
n/a
n/a
n/a
n/a
yes
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3
Tel : [phone] Fax : [phone]
2-10