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2-14
Chapter 2
System Boards
C
B
O A
G
NC
n
LED Indicators
LED
LED
LED
LED
Color
Color
Color
Color
Description
Description
Description
Description
P1
P2
P3
P4
P5
P6
P7
P8
Green
LED is on during each port in use.
❷
J1~J8 Jumper
LED
LED
LED
LED
Default
Default
Default
Default
Description
Description
Description
Description
J1
J2
J3
J4
J5
J6
J7
J8
J1~J8 jumpers are intended to select signaling type for each
port of E&M board.
y
To use TYPE I -Standard signaling,
☞
Close pin B-O and C-G.
y
To use TYPE I -Inverted signaling,
☞
Close pin B -C and G-O.
y
To use TYPE II –Standard signaling,
☞
Close pin A-O.
y
To use TYPE II -Inverted signaling,
☞
Open all pins.
If the power of the connected system is not
–
48V, open the shunt pin of C-B.