[Figure 1, callout 19]
The VCU128 board hosts four QSFP28 small form-factor pluggable (28 Gb/s QSFP+) connectors: QSFP1 J42, QSFP2 J39, QSFP3 J35, and QSFP4 J32, which accept 28 Gb/s QSFP+ optical modules. The four connectors are housed within a single 1x4 ganged 28 Gb/s QSFP+ cage assembly J37. The following figure shows a typical implementation of the 28 Gb/s QSFP28 module connector circuitry.
Table 1 through Table 4 in Right-side GTY Transceiver Connectivity list the QSFP28 connections to the XCVU37P FPGA U1 MGTY transceiver banks 135 (QSFP1), 134 (QSFP2), 132 (QSFP3), and 131 (QSFP4).
Figure 1. 28 Gb/s QSFP28 Module Connector
