TPW3852-4

ISDN S-Bus The 4 wire interface between Subscriber Terminals and the Network Termination has been standardized by CCITT recommendation I.430. It uses a passive bus which provides separate receive and transmit loops operating at 192 Kbits/s. Two versions of TPW3852 have been designed and approved for use with the following devices: Input/Output Transformer TEW3852 Siemens PEB2080 PEB2081 PEB2085 PEB2086 AMD Am79C30A MT8930A, -B, -C MT8931B, -C TPW3852 TPW3852-4 Mitel (See schematic below for correct connections.) MECHANICAL Dot at pin 1 TPW3852-4 5 3 6 1 2 TPW3852-4 3 5 2 1 6 All dimensions are in inches 2 Line 1 6 TPW3852-4 3 4 Device 5 2 Line 1 6 TPW3852 5 4 Device 3 ELECTRICAL Device 3852.chp TPW3852 PEB2080 PEB2085 PEB2086 Am79C30A (2 - 6) : (5 - 3) (2 - 6) (2 - 6) (2 - 6) (3 - 5) 1:2 > 22 mH < 12 µH 1.0 Ω 9.0 Ω TPW3852-4 MT8930A, -B, -C MT8931B, -C ISSUE: G Turns ratio Inductance Leakage Ind. DC Resistance 1:2 > 20 mH < 6.0 µH 3.2 Ω 6.3 Ω 98/04/06 Output Impedance Pulse Characteristics Dielectric Strength, (rms) Conforms to the impedance mask specified in I.430 Conforms to the pulse mask specified in I.430 1500 V 1500 V Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 3K7, Tel : (613) 226 1626 Fax : (613) 226 7124 3-5