3.0 Introduction
The RXT-6400 is the first truly portable 400G test set offering native PAM4, QSFP-DD and OSPF support. Equipped to support all
common transceiver form-factors, this module is a perfect complement to the RXT Platform, extending its testing range to 400 Gbps
and offering a future upgrade path for all-in-one 10M-to-400GE testing. Evaluation, Interop, Installation, verification, commissioning,
monitoring, troubleshooting, and maintenance tasks are simplified thanks to a combination of intuitive user interface and powerful
test functions. Novice users benefit from the easy-to-use GUI, while experienced users will appreciate an array of advanced layer 1-
4 features, such as FEC codeword Error distribution analysis, PAM4 pre-emphasis, skew, I2C/MDIO Read/Write, transceiver check
and stress, Lane BERT, Throughput test, IPv4/IPv6 and much more.
Platform Highlights
Native PAM4 QSFP-DD and OSFP hardware for best-in-class signal integrity (no adapters required)
400G Ethernet testing per IEEE 802.3bs specification with KP4 Forward Error Correction (FEC)
Provides all the necessary features to test QSFP-DD and OSFP transceivers, networking equipment and 400GE links
Advanced and flexible state-of-the-art FPGA-based design, with native PAM4 transceivers, provides future-proof hardware
support for 400GE evolution, emerging standards, test functions, requirements and applications
Wide range of supported 400GE interfaces, including 400GBASE-SR8, FR8, LR8, DR4, and FR4
MDIO/I2C registers Read and Write
Per-lane PAM4 pre-emphasis settings
KP4 FEC codeword symbol errors distribution and Skew
Ethernet Throughput performance test
Hardware supports QSFP56, QSFP28, QSFP+, SFP28, SFP+, SFP, RJ45 (via SFP transceivers) interfaces for lower rate
applications
Battery backup for efficient operation and mobility within large equipment rooms and data centers (no need for constant
rebooting)
3.1 Connector Panels & Test Ports
RXT-1200 with RXT-6400 blade
RXT-6400_Module_Manual
Page 9 of 119
