One Stop Systems MAX Expansion OSS-KIT-EXP-2000, User Manual

Page: 7 / 13

One Stop Systems OSS-KIT-EXP-2000-2M
Page 7
4. Technical Information
4.a. Host adapter card switch settings
The OSS HIB2-
x4 contains two x8 micro switches that allow configuration of the Pericom PI2EQX4402D’s equalization,
amplification and de-emphasis circuitry. The two switches, SW1 and SW2, are located above the Pericom devices on the front side
of the PCB.
SW1 and SW2 Switch Location and Orientation
Switch SW1 Settings Switch SW2 Settings
Switch
#
Signal
Name
Default* Comments
1 ENABLE Down
Up = Disable all Lanes
Down = Normal operation
2
RX_SEL0 Up
Rx Equalizer Selection
See Table 1
3
RX_SEL1 Up
4
RX_SEL2 Up
5
RX_SEL3 Up
Rx Amplifier Selection
See Table 2
6
RX_SEL4 Up
7
RX_SEL5 Up
Rx De-Emphasis
Selection
See Table 3
8
RX_SEL6 Up
Table 1 Table 2 Table 3
Switch
#
Signal
Name
Default
*
Comments
1 N/C Not connected
2
TX_SEL
0
Up
Tx Equalizer
Selection
See Table 1
3
TX_SEL
1
Up
4
TX_SEL
2
Up
5
TX_SEL
3
Down
Tx Amplifier Selection
See Table 2
6
TX_SEL
4
Down
7
TX_SEL
5
Up
Tx De-Emphasis
Selection
See Table 3
8 TX_SEL6 Down
2 3 4 Equalization
0 0 0 No Equalization
0 0 1 1.5db @ 1.25 GHz
ON, low, 0, Up
OFF, high, 1, Down
1 2 3 4 5 6 7 8
SW2 SW1
1 8 1 8