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| CEPT/T1 TEW4977 & -1 are designed and approved to be used as an Input transformer with the following devices. Crystal CS61534, 61535, 61574, 6158, 61535A, 61574A, 61575, 6158A. Level One LXT 300, 301, 305, 304A,305A Also as an Output transformer for: Crystal CS61534, 61535, 61574 & 6158. Level One LXT 300, 301, 305 TEW4977-2 is designed to be used as an Output transformer, and TEW4977-3 as an Input trf. for: Brooktree BT8069B device Input/Output Transformer Fully encapsulated in epoxy. Typical applications are: TEW4977 * * * * Primary rate ISDN network nodes. PBX or computer to T1/CEPT Digital trunks. High speed data link using T1/CEPT Digital trunk. TDM Multiplexers. BABT certified for reinforced insulation to EN60950 & EN41003 Cert # CR/T/0052 MECHANICAL 6 Line side 4 1 2 Device 3 WHITE DOT AT PIN 1 All dimensions are in inches ELECTRICAL SPECIFICATION 4977.chp TEW4977 75, 100 & 120 (1 - 3) (6 - 4) (6 - 4) : (1 - 3) (6 : 4) : (1 - 2) 1.15 nom. 0.60 nom. 1 : 2 c.t. --> 1.2 T1.408 I.431 T1.40 G.703 -1 75 1.6 0.8 1 : 2 c.t. --> 0 .8 I.431 G.703 BS6328 4000 -2 75, 100 & 120 0.7 nom 1.2 nom 2 : 1 c.t. --> 4.8 T1.408 I.431 n/a 4000 -3 75, 100 & 120 0.7 nom 0.7 nom 1:1 --> 1.2 T1.408 I.431 G.703 4000 -4 75 & 120 1.2 nom 0.7 nom 1:2 1 : 1.58 > 1.2 I.431 G.703 4000 Line Impedance DCR Turns ratio Inductance Longitud. Bal. Return Loss Dielectric Strength (Ohms) (Ohms) ISSUE: F 97/10/22 (mH) (6 - 4) (Vrms) 4000 Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada, K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 2-18 |
Price & Availability of TEW4977-1
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