ATM Interface Transformers Designed for 155Mbps ATM applications over UTP-5 cable Supports 100 Base-X and Twisted Pair FDDI Electrical Specifications at 25o C Supports either transmit or receive channels PARAMETER TYP. UNITS Insertion Loss (100KHZ to 100 MHz) -1.0 IEEE 802.3 Compatible dB Low common mode emisions Return Loss: (30 MHz) (60 MHz) (80 MHz) -16 -12 -10 dB dB dB -40 -35 -35 dB dB dB 1500 Vrms Fast Rise Times SCHEMATICS Crosstalk Isolation (32 MHz) (62 MHz) (100 MHz) Min. 1 16 2 15 3 14 TX = TRANSMIT CHANNEL RX = RECEIVE CHANNEL 6 11 7 10 8 9 TURNS RATIO: (RECEIVE) 1CT : 1CT (TRANSMIT) 1.25CT : 1CT Dimensions in Inches (mm) 1.0 (25.40) MAX. .410 (10.41) MAX. .260 (6.60) .300 MAX. (7.62) MAX. .020 (0.51) TYP. .100 (2.54) TYP. Available on Tape & Reel .010 (0.25) TYP. .040 (1.02) TYP. .510 (12.95) .480 (12.19) T-15507 Rhombus P/N: Cust. P/N: Date: 4/22/99 Rhombus Industries Inc. Transformers & Magnetic Products www.rhombus-ind.com Name: Sheet: 1 of 1 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Phone: (714) 898-0960 z FAX: (714) 896-0971