Moog Components Group
201750-xxx MM2/Mini4 10/100
Feb 24, 2009
Ethernet Daughterboard Manual, Rev B
Page 4 of 8
1.2
MM2/Mini4 10/100 Ethernet Daughterboard Revision History:
The MM2/Mini4 10/100 Ethernet daughterboard has gone through the following printed
circuit board (PCB) and Assembly revisions:
PCB Revision A
Original design.
PCB Revision B
Various circuit and routing corrections.
1.3
MM2/Mini4 10/100 Ethernet Daughterboard Dash (-) Number
Definitions
The MM2/Mini4 10/100 Ethernet daughterboard has a Dash Number appended to the part
number. This Dash Number identifies the specific board configurations:
-001A // -001A PT
Original configuration, obsolete
-001B // -001A PT
Rev B PCB, no LED display header placed
-002B
Rev B PCB, LED display header placed for Surface
1.4
MM2/Mini4 10/100 Ethernet Daughterboard Operation:
Each of the four 10/100 Ethernet ports automatically switch to follow the PC attached to the
specific port. There are two LEDs located within the quad RJ-45 connector. The left LED
(green) will be lit if the port is running at 100Mbps and will be off if 10Mbps. The right
LED (yellow) will be lit solidly if an Ethernet link is detected and blink off with traffic. All
four ports are also auto-polarity correcting so either straight or crossover cables can be used.
NOTE 1: Two DIP-socketed EEPROMs (at U15/20 and U12/13) must be placed for
this board to function correctly.
1.5
10/100 Ethernet Interface Daughterboard Indicators and
Controls:
LEDS:
There are 13 surface mount vertical LED indicators on the top of the board and 1 surface
mount LED indicators on the bottom of the board.
Top of Board
LED
Indication
D1 (Green)
Labeled ‘DB PWR’, Located at the upper left of the board serves as an indicator that +5VDC
is available to the board. Supply voltage to the board is selected via the placement of fuse F6
from the Daughterboard Header (J1), F7 from the Diagnostics Header (J2), or F3 from the
Auxiliary daughterboard header (J4).
D2 (Green)
Labeled ‘TX DATA’, located at the center right edge of the board serves as an indicator the
diagnostics data is being transmitted out of the board on the Diagnostics Header (J4) or
Diagnostics connector (J6).
NOTE: DIAGNOSTICS NOT AVAILABLE
D3 (Green)
Labeled ‘RX DATA’, located at the center right edge of the board serves as an indicator the
diagnostics data is being received into the board on the Diagnostics Header (J4) or
