ISDN S-BUS TEW4610 Input/Output Transformer The TEW4610 has been approved for use with the INTEL S-bus interface device S29C53. The 4 wire interface between Subscriber Terminals and The Network Temination has been standardised by CCITT recommendation I.430. It uses a passive bus which provides separate receive and transmit loops operating at 192 Kbits/s. MECHANICAL 1 8 2 7 3 6 Hole arrangement View in mounting direction min. Dot for pin 1 on top. 0.1" Grid All dimensions are in inches. 0.060" (2 places) 0.047" (8 places) ISSUE:B 94/11/24 TEW46.10.chp ELECTRICAL DC Resistance (1 - 3) (8 - 6) 4.7 Ohms 1.7 Ohms Inductance (8 - 6) 22 mH min. Leakage Inductance (1 & 3) shorted (8 - 6) 6.0 uH max. Turns Ratio (8 - 6):( 1 - 3) 1CT : 1.8 CT Inter-winding Cap. Longitudinal balance 25 pF 10 - 300 kHz nom. > 54 dB Impedance Conforms to the impedance given in I.430 Pulse Shape Conforms to the pulse mask given in I.430 Dielectric Strength Filtran Limited (rms) 1500 V 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3 Tel : (613) 226-1626 Fax : (613) 226-7124 3-6