1. Overview ................................................ 2
2. Reference Design Details ......................... 3
QSFP28 Host Board V1.2
1 Overview
QSFP28 Host Board is a high-speed, Small Form Factor Pluggable (QSFP28) host board designed for evaluating 100G QSFP28 modules that operate at data rates up to 28Gbps per lane. The host board can be used to test a variety of different modules, and includes additional features for testing, monitoring, and programming Customer’s QSFP28 reference design boards.
QSFP28 Host Board V1.2
2 Reference Design Details
1. CH4 TX±;
2. CH2 TX±;
3. CH1 TX±;
4. CH3 TX±;
5. CH3 RX±;
6. CH1 RX±;
7. CH2 RX±
8. CH4 RX±
9. DIP Switch:
(1), ModPrsL Setting;
(2), LPMode Setting;
10. Key: Module Reset
11. Key:Reset for MCU
12. I2C Interface:
1:GND; 2:SDA; 3:SCL; 4: 3.3V;
13. +5V/5A DC Adaptor Input
+5V/5A DC Power Input
14. USB2.0
Communicate with PC GUI
15. +3.3V DC Power input
When +5V/5A DC Power Input have not been plugged-in, Add external +3.3V power from POWER SUPPLIER.
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11.

3 PC GUI