
MOOG CG 201840-xxx VME Dual Port G gab t Ethernet Board Manual, Rev B February 24, 2009
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1.3 VME Dual Port Gigabit Ethernet Board Operation:
The G gab t Ethernet board has three ma n electr cal connectors: two Ethernet RJ-45
connectors and the DIN backplane connector for DC power. The board also has a s ngle 2-
p n Phoen x DC power connector f the board s used w thout a VME rack and backplane.
The RJ-45 connectors (J4 and J7) are located at the left s de of the board and are standard 8-
p n Ethernet connectors w th an ntegrated transformers. The RJ-45 connectors each have a
pa r of ntegrated Ethernet status LEDs.
There s s ngle DIN backplane connector (J1) mounted on the t ght s de of the board for
acqu r ng +5VDC power. Also a green 2-p n Phoen x connector (J2) s located on the on
the lower r ght s de of the board for supply ng the board w th DC operat ng power f the
backplane s not used. P n 1 (upper p n of the J2 connector and labeled “+5V”) s the
+5VDC nput and p n 2 (the bottom p n and labeled “GND”) s the ground.
The SFP opt cal modules (J3 and J6) are located on the left s de 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 r ght angle LED nd cators 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 r ght of the board, labeled “+5V”, serves as an nd cator that +5VDC
power s ava lable to the board.
D5 (Green) Located on the upper left of the board, labeled “FIBER TRAFFIC #1”. LED bl nks ON
br efly when power s appl ed to the board, otherw se t s not l t.
D7 (Green) Located on the left center of the board, labeled “FIBER TRAFFIC #2”. LED bl nks ON
br efly when power s appl ed to the board, otherw se t s not l t.
D9 (Green) Located on the lower left of the board, labeled ‘TXD #2’, prov des an nd cat on that the
Cypress m croprocessor has responded to a data request from the PMON2 computer. Th s
LED s ON for the durat on of the transm tted data.
D11 (Green) Located on the lower left of the board, labeled ‘RXD #2’, prov des an nd cat on that the
Cypress m croprocessor has rece ved a data request from the PMON2 computer. Th s LED s