74740-0001 Datasheet, PDF (10/11 Pages) Molex Electronics Ltd. – 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver

GBIC HOST CONNECTOR PIN DESCRIPTIONS
1000Base-T RJ-45 Gigabit
Ethernet GBIC Copper
Transceiver
PIN
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PIN 9
PIN 10
PIN 11
PIN 12
PIN 13
PIN 14
PIN 15
PIN 16
PIN 17
PIN 18
PIN 19
PIN 20
NAM E
RX_LOS
RGND
RGND
MOD_DEF(0)
MOD_DEF(1)
MOD_DEF(2)
TX_DISABLE
TGND
TGND
TX_FAULT
RGND
RX_DATA (-)
RX_DATA (+)
RGND
V _DDR
V _DDT
TGND
TX_DATA (+)
TX_DATA (-)
TGND
DESCRIPTION
Receiver Loss of Signal, logic high, open collector compatible, 4.7 K to 10 K Ohm pull-up to V_DDT on
host. See part number chart for details.
Receiver Ground
Receiver Ground
GBIC module def inition and presence, 4.7 K to 10 K Ohm pull-up to V_DDT on host
Signal SCL (Clock) of the 2-w ire serial ID interface, 4.7 K to 10 K Ohm pull- up to V_DDT on host,
100KHz maximum clock rate.
Signal SDA (Data) of the 2-w ire serial ID interface, 4.7 K to 10 K Ohm pull- up to V_DDT on host
TX_DISABLE is not implemented. Transmitter Disable, logic high, open collector compatible, 4.7 K to
10 K Ohm pull-up to V_DDT on GBIC.
Transmitter Ground
Transmitter Ground
Transmitter Fault, logic high, open collector compatible, 4.7 K to 10 K Oh pull-up to V_DDT on host.
Not implemented on the RJ-45 GBIC
Receiver Ground
Receive Data, differential AC coupled
Receive Data, differential AC coupled
Receiver Ground
Receiver Supply +5.0 Volts
Transmitter Supply +5.0 Volts
Transmitter Ground
Transmit Data, differential AC coupled
Transmit Data, differential AC coupled
Transmitter Ground