CEPT/T1 TEW5376 is designed to be used either as a transmit or as a receive transformer in the ISDN primary rate access network, for the following devices. Siemens SGS-THOMSON TEW5376 Input/Output Transformer When in transmit mode, connect the two primary windings in parallel, pins 1 to 3 and 2 -4. When in receive mode, connect the two primary windings in seriesp, pin 2 to pin 3. PEB2235 PEB2236 Typical applications are: STLC5432 Complies with ANSI T1.408 and CCITT I.431, with regards to Longitudinal Balance and with T1.408 and G.703 for the return Loss. • Primary rate ISDN network nodes. • PBX or computer to T1/CEPT Digital Trunks. • TDM Multiplexers. MECHANICAL 5 1 Top view. 2 Line Device 3 5 6 3 4 1 2 6 4 Recommended Foot Print ISSUE: B 97/05/07 TEW5376.chp All dimensions are in mm. ELECTRICAL SPECIFICATION TEW5376-1 TEW5376-2 TEW5376-3 100 Ω 75 Ω 120 Ω 1 : 1 : 2.67 1 : 1 : 1.57 1:1:2 > 2.2 > 0.75 > 1.2 T1 CEPT CEPT Longitud. Bal. T1.408 I.431 I.431 Return Loss T1.408 G.703 G.703 1500 1500 1500 Line Impedance Turns ratio (5-6) (1-2) : (3-4) : (5-6) Inductance (mH) (5-6) Pulse Mask Dielectric Strength (Vrms) Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3, Tel : (613) 226 -1626 Fax : (613) 226 -7124 2-42