TEW4922 FILTRAN | Alldatasheet
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Technical content
TEW4922 is designed and approved to be used as a receive transformer with MITEL MT89760 /-60B and MT89790/-90B devices. Fully encapsulated in epoxy. Also suitable as input/output transformer for other makes of T1/CEPT interface devices. Typical applications are:
- Primary rate ISDN network nodes.
- PBX or computer to T1/CEPT Digital Trunks.
- High speed data link using T1/CEPT Digital Trunk. BABT certified for reinforced insulation to EN60950 & EN41003. Cert #: CR/T/0052 Devices MT89760 MT89790 MT89790 MT89790 MT89760B MT89790B MT89790B MT89790B Application T1 CEPT CEPT CEPT Line Impedance 100 Ω 120 Ω 75 Ω 75/120Ω DCR (Ohms) (1 - 3) 1.55 1.55 1.11 1.1 Inductance (mH) (6 - 4) > 3.5 > 2.8 > 0.70 > 2.8 Return Loss T1.408 G.703 G.703 G.703 BS6328 BS6328 Dielectric Strength, Volts RMS 4000V 4000V 4000V 4000V 4000V Temperatures, Operating 0 o to 50oC Storage -20 o to 80oC MECHANICAL TEW4922-1, -2 @ -3 WHITE DOT AT PIN 1 Line Device CEPT/T1 Input Transformer TEW4922 Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada, K2E 7K3 2-16 Tel: (613) 226-1626 Fax: (613) 226-7124 ISSUE: D , 95/04/25 4922.chp ELECTRICAL SPECIFICATION TEW4922-1 - 2 - 3 - 4 TEW4922-4 com 6 75 Ω 5 120 Ω 4 Line Device