Token Ring Transceiver PCA Part Number(s) EPT7081 Electrical Specifications @ 25°C XMIT RCV Unit Insertion Loss Parameter 8 MHz Frequency -0.5 -0.5 dB Max. Attenuation 10 MHz -1.1 -0.7 dB Min. 24 MHz -1.9 -1.3 1-17 MHz -14 -8 -20 -10 dB Min. dB Min. -40 -40 dB Min. -40 -40 dB Min. -30 -30 dB Min. Return Loss Specification 17-25 MHz Common Mode Rejection 5 MHz 20 MHz 70 MHz Crosstalk 1-32 MHz -50 (Between Channels) dB Min. dB Min. Ω Impedance Notes : 1. Optimized for T1380C60 & T1380C30. 2. Supports UTP & STP Transmission cables. 3. IEEE 802.5 compatible. Schematic Xmit 13 Ts+ 10 TX+ 12 Tu+ 5 Ph+ Filter 6 Ph15 Tu8 TX14 Ts16 CHGND Rcv 19 Rs+ 1 RX+ 20 Ru+ 3 Ph+ 4 Ph17 Ru2 RX18 Rs16 CHGND Package TOP PCA EPT7081 Date Code .600 Max 1.115 Max. .350 Max. .020 x .010 .100 DST7081 Rev.- .150 Max. .010 Typ. .500 QAF-CSO7 8/10/94 7/18/96 Unless Otherwise Noted Dimensions in Inches Tolerances: Fractional = ± 1/32 .XX = ± .030 .XXX = ± .010 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 ELECTRONICS INC. TEL: (818) 892-0761 FAX: (818) 894-5791 WEB: http://www.pcainc. com