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Mitel NWK954 manual

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Table of contents for the manual

  • Page 1

    The NWK954 is a fully integrated, unmanaged, 4-port Fast Ethernet Repeater conforming to the IEEE 802.3 100BASE-TX Standard. The device integrates the 802.3 Repeater functions with four 100BASE-TX PHY modules, enabling direct connection to the isolation transformers with no additional PHY components. It has built-in LED drivers for display of port [...]

  • Page 2

    NWK954 2 QUAD RJ45 QUAD MAGNETICS NWK954 QUAD MAGNETICS NWK954 QUAD MAGNETICS NWK954 QUAD MAGNETICS NWK954 QUAD MAGNETICS NWK954 QUAD MAGNETICS NWK954 CLOCK DRIVERS OSCILLA TOR BACKPLANE BUFFERS BACKPLANE CONTROLS LOCAL EXP ANSION BUS Hub 0 Hub 1 Hub 2 Hub 3 Hub 4 Hub 5 Hub 6 Hub 7 Fig. 2 192-port stacked repeater[...]

  • Page 3

    NWK954 3 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 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 68 67 66 65 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 51 62 63 64 IRD3 IRD2 DIGGND2 DIGVDD2 P0_RXLED_N P0_ERLED_N P1_RXLED_N P1_[...]

  • Page 4

    NWK954 4 PORT 0 TRANSCEIVER P0_TXOP P0_TXON P0_TXREF P0_RXIP P0_RXIN PORT 1 TRANSCEIVER P1_TXOP P1_TXON P1_TXREF P1_RXIP P1_RXIN PORT 2 TRANSCEIVER P2_TXOP P2_TXON P2_TXREF P2_RXIP P2_RXIN PORT 3 TRANSCEIVER P3_TXOP P3_TXON P3_TXREF P3_RXIP P3_RXIN RESET_N PSEN [1:0] TXCLKIN T A [4:2] VOL T AGE REFERENCE REPEA TER CONTROLLER POWER-ON RESET IRD [4:0[...]

  • Page 5

    NWK954 5 Basic Repeater Function The Repeater Controller monitors activity on the 4 twisted pair ports and on the Expansion Port. When a packet is received on one of the twisted pair ports it is forwarded to the other 3 twisted pair ports and to the Expansion Port. When a packet is received on the Expansion Port it is forwarded to all 4 twisted pai[...]

  • Page 6

    NWK954 6 BP ACTIN_ N [7:1] LACTIN_N [5:1] LACTOUT_N BPCOLIN_N BPCOL_N BPCLK IRD [4:0] TXCLKIN BP ACTIN_ N [7:1] LACTIN_N [5:1] LACTOUT_N BPCOLIN_N BPCOL_N BPCLK IRD [4:0] TXCLKIN BP ACTIN_ N [7:1] LACTIN_N [5:1] LACTOUT_N BPCOLIN_N BPCOL_N BPCLK IRD [4:0] TXCLKIN BP ACTIN_ N [7:1] LACTIN_N [5:1] LACTOUT_N BPCOLIN_N BPCOL_N BPCLK IRD [4:0] TXCLKIN B[...]

  • Page 7

    NWK954 7 The IRD bus in each hub is connected to the 5-bit backplane bus via a bidirectional buffer . This allows data to be driven from any hub to all other hubs in the stack. The bidirectional buf fer is controlled by 2 control signals (BPDOE_N and BPDIE_N) which can be taken from any one of the NWK954 devices in the hub. BPDOE_N and BPDIE_N defa[...]

  • Page 8

    NWK954 8 100BASE-TX Receiver The 100BASE-TX receiver recovers data from up to 140m of Cat5 UTP cable. Received data is decoded and descrambled and presented to the repeater controller as 5-bit symbols. The T ransceiver Controller sequences the start-up of the receiver and does not allow data to be passed to the Repeater Controller until the receive[...]

  • Page 9

    NWK954 9 PIN DESCRIPTIONS Active low signals are denoted by the _N suf fix; all other signals are active high Network Interface Signal P0_RXIP P0_RXIN P0_TXOP P0_TXON P0_TXREF P1_RXIP P1_RXIN P1_TXOP P1_TXON P1_TXREF P2_RXIP P2_RXIN P2_TXOP P2_TXON P2_TXREF P3_RXIP P3_RXIN P3_TXOP P3_TXON P3_TXREF Description ( 1 ) Dif ferential receive signal from[...]

  • Page 10

    NWK954 10 Expansion Port (Continued) Signal BP ACTIN_N7 BP ACTIN_N6 BP ACTIN_N5 BP ACTIN_N4 BP ACTIN_N3 BP ACTIN_N2 BP ACTIN_N1 BPDIE_N BPDOE_N BPCLK BPCOL_N BPCOLIN_N BPCOLOE_N T ype Digital input, no pull-up Standard digital output and digital input with pull-up Standard digital output and digital input with pull-up High drive open drain digital [...]

  • Page 11

    NWK954 11 LED Drivers Signal COLLED_N P0_RXLED_N P1_RXLED_N P2_RXLED_N P3_RXLED_N P0_ERLED_N P1_ERLED_N P2_ERLED_N P3_ERLED_N ACTLED_N4 ACTLED_N3 ACTLED_N2 ACTLED_N1 ACTLED_N0 T ype Standard digital output Standard digital output Standard digital output Standard digital output Standard digital output Standard digital output Standard digital output [...]

  • Page 12

    NWK954 12 Power Signal DIGGND[5: 1] DIGVDD[5: 1] DIGGND6 DIGVDD6 SUBVDD[2:1] VREFGND VREFVDD P0_TXGND[3:1] P0_TXVDD[3:2] P0_RXGND[3:1] P0_RXVDD[3:1] P1_TXGND[3:1] P1_TXVDD[3:2] P1_RXGND[3:1] P1_RXVDD[3:1] P2_TXGND[3:1] P2_TXVDD[3:2] P2_RXGND[3:1] P2_RXVDD[3:1] P3_TXGND[3:1] P3_TXVDD[3:2] P3_RXGND[3:1] P3_RXVDD[3:1] Pin no. 94, 100, 1 1 1, 126, 4 93[...]

  • Page 13

    NWK954 13 POWER SUPPLY Recommended Operating Conditions apply except where otherwise stated Supply voltage Supply current Characteristic Min. Typ. Max. 5·25 400 4·25 V DD I DD V mA Value Symbol Includes current through external components(see Fig. 8) Conditions Units DC ELECTRICAL CHARACTERISTICS Recommended Operating Conditions apply except wher[...]

  • Page 14

    NWK954 14 AC ELECTRICAL CHARACTERISTICS Recommended Operating Conditions apply except where otherwise stated TXCLK and RESET_N Typ. Max. TXCLKIN Frequency Duty cycle RESET_N Pulse width 55 - MHz % ns Units Conditions Characteristic Value 25 ± 100ppm - f TCLK t WRES Symbol Min. 45 100 TXOP/TXON The differential output voltage shall be in the range [...]

  • Page 15

    NWK954 15 Fig. 8 External components 1:1 MAGNETICS VALOR ST6184 BEL 5558-5999-74 RXON3 RXOP3 RXOC3 TXIP3 TXIN3 TXIC3 TXIC2 TXIN2 TXIP2 RXOC2 RXOP2 RXON2 RXON1 RXOP1 RXOC1 TXIP1 TXIN1 TXIC1 TXIC0 TXIN0 TXIP0 RXOC0 RXOP0 RXON0 C1 C2 R2 R1 R2 R1 R2 R1 R2 R1 C1 C2 C3 C3 R3 R3 R3 R3 C1 C2 R2 R1 R2 R1 C3 C3 R3 R3 R3 R3 C1 C2 R2 R1 R2 R1 P3_RXIN P3_RXIP P[...]

  • Page 16

    NWK954 PACKAGE DETAILS Dimensions are shown thus: mm (in). 31·65/32·15 (1·246/1·266) 3·60/4·00 (0·142/0·157) PIN 1 IDENT PIN 128 27·90/28·10 (1·098/1·106) SQ. 128-LEAD PLASTIC QUAD FLA TP ACK – GP128 0·13/0·20 (0·005/0·008) 3·35/3·60 (0·132/0·142) 0 ° - 7 ° 24·80 (0·976) NOM. PIN 1 128 LEADS A T 0·80 (0·0315) NOM. SP ACI[...]