NWK954 Datasheet | Mitel Networks

FEATURES s pliant with IEEE 802.3 100BASE-TX Repeater Unit Specification s Incorporates four IEEE 802.3 pliant 100BASE-TX Ports s Local Expansion Port for Cascading to 24 Ports s Stackable Backplane for Expansion up to 192 Ports s Link/Activity LED and Receive Error LED for each Port s Collision LED s Five LED Network Utilization Display s Base Line Wander Correction s Power Saving on Unused Ports s Driven from a Single 25MHz Clock s Single 5V supply s Low Power CMOS Technology s 128-pin PQFP package OSCILLATOR BACKPLANE CONTROLS BACKPLANE BUFFERS CLOCK DRIVERS LOCAL EXPANSION BUS QUAD MAGNETICS QUAD MAGNETICS QUAD MAGNETICS QUAD MAGNETICS QUAD MAGNETICS QUAD MAGNETICS QUAD RJ45 Fig. 1 System block diagram Hub 7 Hub 6 Hub 5 Hub 4 Hub 3 Hub 2 Hub 1 Hub 0 BACKPLANE CONTROLS OSCILLATOR BACKPLANE BUFFERS CLOCK DRIVERS LOCAL EXPANSION BUS QUAD MAGNETICS QUAD MAGNETICS QUAD MAGNETICS QUAD MAGNETICS QUAD MAGNETICS QUAD MAGNETICS QUAD RJ45 Fig. 2 192-port stacked repeater IRD4 LACTOUT_N DIGVDD1 DIGGND1 RESET_N LACTIN_N1 LACTIN_N2 LACTIN_N3 LACTIN_N4 LACTIN_N5 TDC TDIO TA4 TA3 TA2 SUBVDD1 P0_RXGND3 P0_RXVDD3 P0_RXVDD2 P0_RXGND2 P0_RXGND1 P0_RXVDD1 P0_RXIN P0_RXIP P0_TXVDD3 P0_TXGND3 P0_TXREF P0_TXGND2 P0_TXVDD2 P0_TXON P0_TXOP P0_GND1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 IRD3 IRD2 DIGGND2 DIGVDD2 P0_RXLED_N P0_ERLED_N P1_RXLED_N P1_ERLED_N P2_RXLED_N P2_ERLED_N P3_RXLED_N P3_ERLED_N ACTLED_N4 ACTLED_N3 ACTLED_N2 ACTLED_N1 ACTLED_N0 DIGGND3 DIGVDD3 COLLED_N BPDOE_N BPDIE_N BPCOLOE_N BPACTOUT_N BPCOLIN_N BPACTIN_N1 BPACTIN_N2 BPACTIN_N3 DIGGND4 DIGVDD4 IRD1 IRD0 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69...