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TEW4980

Application· Primary rate ISDN network nodes.· PBX or computer to T1/CEPT Digital trunks.· TDM MultiplexersPinoutSpecifications TEW4980 -1 -2 -3 -4 Line ImpedanceInductance (mH)(5-8)Turns ratio (1- 2):(3-4):(5-8)(1- 2):(3-4):(5-7)Pulse MaskLongitud. bal.Return LossDielectric S...

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SeekIC No. : 004517774 Detail

TEW4980: Application· Primary rate ISDN network nodes.· PBX or computer to T1/CEPT Digital trunks.· TDM MultiplexersPinoutSpecifications TEW4980 -1 -2 -3 -4 Line ImpedanceInductance (mH)...

TEW4980 Data Sheet

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Part Number:
TEW4980
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/6/15

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Product Details

Description



Application

· Primary rate ISDN network nodes.
· PBX or computer to T1/CEPT Digital trunks.
· TDM Multiplexers


Pinout

Connection Diagram


Specifications

 
TEW4980 -1
-2
-3
-4
Line Impedance
Inductance (mH)(5-8)
Turns ratio (1- 2):(3-4):(5-8)
(1- 2):(3-4):(5-7)
Pulse Mask
Longitud. bal.
Return Loss
Dielectric Strength, (Vrms)
75
> 0.75
1:1: 1.57

CEPT
I.431
G.703
4000
100
> 3.5
1:1: 2.67

T1/DS1
T1.408
T1.408
4000
120
> 1.2
1:1: 2

CEPT
I.431
G.703
4000
75/120
> 1.2
1:1:2
1:1:1.6
CEPT
I.431
G.703
4000



Description

TEW4980 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 3 and pin 2 to 4. When in receive mode, connect the two primary windings in series, pin 2 to pin 3, thus forming a center tap at pin 2/3.




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