Gth Tx/Rx Loopback Connections - Xilinx Virtex-7 FPGA VC7222 IBERT Getting Started Manual

Chapter 1: VC7222 IBERT Getting Started Guide

GTH TX/RX Loopback Connections

See
(RX0, RX1, RX2, and RX3) and the four transmitters (TX0, TX1, TX2, and TX3). Use eight
SMA female-to-female (F-F) adapters
cables as shown in
•
•
•
•
•
•
•
•
Note:
however do not over tighten the SMAs.
X-Ref Target - Figure 1-6
X-Ref Target - Figure 1-7
12
Send Feedback
Figure 1-2 to identify the P and N coax cables that are connected to the four receivers
Figure 1-7
TX0_P → SMA F-F Adapter → RX0_P
TX0_N → SMA F-F Adapter → RX0_N
TX1_P → SMA F-F Adapter → RX1_P
TX1_N → SMA F-F Adapter → RX1_N
TX2_P → SMA F-F Adapter → RX2_P
TX2_N → SMA F-F Adapter → RX2_N
TX3_P → SMA F-F Adapter → RX3_P
TX3_N → SMA F-F Adapter → RX3_N
To ensure good connectivity, it is recommended that the adapters be secured with a wrench,
Figure 1-6: SMA F-F Adapter
Figure 1-7: TX-To-RX Loopback Connection Example
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(Figure 1-6) to connect the transmit and receive
and detailed in the following list:
VC7222 IBERT Getting Started Guide
UG971 (v5.0) June 12, 2014