TEW4922-4 [FILTRAN]
CEPT/T1 Input Transformer; CEPT / T1输入变压器
| 型号： | TEW4922-4 |
| 厂家： | 
FILTRAN LTD |
| 描述： | CEPT/T1 Input Transformer |
| 文件： | 总1页 (文件大小：52K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CEPT/T1
Input Transformer
TEW4922
TEW4922 is designed and approved
Typical applications are:
to be used as a receive transformer
with
•
•
•
Primary rate ISDN network
nodes.
MITEL MT89760/-60B and
MT89790/-90B devices.
PBX or computer to T1/CEPT
Digital Trunks.
Fully encapsulated in epoxy.
High speed data link using
T1/CEPT Digital Trunk.
Also suitable as input/output
transformer for other makes of
T1/CEPT interface devices.
BABT certified for reinforced
insulation to EN60950 & EN41003.
Cert #: CR/T/0052
MECHANICAL
6
4
1
Line
Device
2
3
TEW4922-1, -2 @ -3
com 6
1
Line
2
3
Device
75 Ω 5
WHITE DOT
AT PIN 1
120 Ω 4
TEW4922-4
- 3
ELECTRICAL SPECIFICATION
Devices
TEW4922-1
- 2
- 4
MT89760
MT89790
MT89790
MT89790
MT89760B
MT89790B
MT89790B
MT89790B
Application
T1
CEPT
CEPT
CEPT
Line Impedance
100 Ω
120 Ω
75 Ω
75/120 Ω
DCR
(Ohms)
(mH)
(1 - 3)
(6 - 4)
1.55
0.85
1.55
1.08
1.11
0.55
1.1
0.7
Turns ratio
(1 - 2) : (2 - 3): (6 - 4)
(1 - 2) : (2 - 3): (6 - 5)
1: 1 : 1
—-
1 : 1 : 1.26
—-
1 : 1 : 1
—-
1 : 1 : 1.26
1 : 1 : 1
Inductance
(6 - 4)
> 3.5
> 2.8
I.431
> 0.70
I.431
> 2.8
I.431
Longitud. Bal.
Return Loss
T1.408
T1.408
G.703
G.703
G.703
BS6328
BS6328
Dielectric Strength, Volts RMS
4000V
4000V
4000V
4000V
4000V
Temperatures,
Operating
Storage
0o to 50oC
-20o to 80oC
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada, K2E 7K3
Tel: (613) 226-1626 Fax: (613) 226-7124
2-16
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