MOOG CG
201840-xxx VME Dual Port Gigabit Ethernet Board Manual, Rev B February 24, 2009
Page 4 of 8
1.3
VME Dual Port Gigabit Ethernet Board Operation:
The Gigabit Ethernet board has three main electrical connectors: two Ethernet RJ-45
connectors and the DIN backplane connector for DC power. The board also has a single 2-
pin Phoenix DC power connector if the board is used without a VME rack and backplane.
The RJ-45 connectors (J4 and J7) are located at the left side of the board and are standard 8-
pin Ethernet connectors with an integrated transformers. The RJ-45 connectors each have a
pair of integrated Ethernet status LEDs.
There is single DIN backplane connector (J1) mounted on the tight side of the board for
acq5VDC power. Also a green 2-pin Phoenix connector (J2) is located on the on
the lower right side of the board for supplying the board with DC operating power if the
backplane is not used. Pin 1 (upper pin of the J2 connector and labeled “+5V”) is the
+5VDC input and pin 2 (the bottom pin and labeled “GND”) is the ground.
The SFP optical modules (J3 and J6) are located on the left side of the board.
NOTE: On power-up of the board, both LEDs within RJ-45 connectors J4 and J7 will
briefly flash ON then OFF to indicate that the GBE chips (U5 and J9) are starting.
Even if the two boards are optically connected, neither LED on RJ-45 connectors J4
and J7 will light until a valid GBE signal is present at BOTH ends of the fiber optic
link. Once valid GBE signals are seen at both ends of the link then the LEDs on J4
and J7 will activate.
1.3.1
Gigabit Ethernet Board Indicators and Controls:
LEDS:
There are 3 through-hole right angle LED indicators on the top of the board. There are no
LEDs on the bottom of the board.
Top of Board
LED
Indication
D3 (Green)
Located at the lower right of the board, labeled “+5V”, serves as an indicator that +5VDC
power is available to the board.
D5 (Green)
Located on the upper left of the board, labeled “FIBER TRAFFIC #1”. LED blinks ON
briefly when power is applied to the board, otherwise it is not lit.
D7 (Green)
Located on the left center of the board, labeled “FIBER TRAFFIC #2”. LED blinks ON
briefly when power is applied to the board, otherwise it is not lit.
D9 (Green)
Located on the lower left of the board, labeled ‘TXD #2’, provides an indication that the
Cypress microprocessor has responded to a data request from the PMON2 computer. This
LED is ON for the duration of the transmitted data.
D11 (Green)
Located on the lower left of the board, labeled ‘RXD #2’, provides an indication that the
Cypress microprocessor has received a data request from the PMON2 computer. This LED is
