CEPT /T1 Typical applications are: TEW5280 is designed and approved to be used as a transmit transformer in T1/CEPT applications with the following devices: • Primary rate ISDN network nodes. – DS2186 DS2151Q DS2153Q • PBX or computer to T1/CEPT Digital Trunks. • TDM Multiplexers. • Fully encapsulated in epoxy. Dallas TEW5280 Output Transformer – PMC-Sierra PM4341 T1X PM6431 E1 – AT&T T7290 BABT certified for reinforced insulation to EN60950 & EN41003 Complies with ANSI T1.408 and CCITT I.431, with regards to Longitudinal Balance Cert # : CR/T/0052 MECHANICAL 6 1 Line Device 4 3 TEW5280-1 ISSUE:G 96/06/10 5280.chp WHITE DOT AT PIN 1 ELECTRICAL SPECIFICATIONS TEW5280 -1 75, 100 & 120 Ω Line Impedance DCR (Ohms) (1 - 3) (6 - 4) Turns Ratio Inductance (mH) Pulse Mask (1 - 3) : (6 - 4) 1 : 1.35 ( 6 - 4) > 1.75 T1 & CEPT Longitud. Bal. T1.408 & I.431 Dielectric Strength (Vrms) Filtran Limited 0.61 0.77 4000 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3, Tel : (613) 226 1626 Fax : (613) 226 7124 2-29