Part of the Valkyrie stateless test platform, the Loki-100G-3S-1P is a dual-media tri-speed test module.
Dual-media tri-speed test module
The Loki-100G-3S-1P is a 3-speed (100/40/10GE) dual media test module for the ValkyrieCompact and ValkyrieBay chassis (where it occupies 2 slots).
This cost-optimized test module supports two transceiver form-factors: QSFP28 (CAUI-4), QSFP+ (CAUI), and CXP (CAUI) allowing users to choose either of these transceiver form factors to be active at any time.
When the CXP form-factor is selected, the user can, in addition to a single 100G test port, also use the test module to provide two 40G test ports or eight 10G test ports. This flexibility and price/performance makes it ideal for BERT, load-stress, and functional testing of Ethernet equipment and network infrastructure.
The Loki-100G-3S-1P dual-media tri-speed test module comes complete with a comprehensive suite of management and test application software.
Unique Eye Diagram
The Loki-100G-3S-1P includes a unique feature for analyzing signal quality called the “eye diagram”. When using CFP4 and QSFP28/QSFP+ ports on the Loki-100G-3S-1P, an additional panel called “Advanced PHY Features“ will appear in the main Resource Properties tab of ValkyrieManager. This panel controls and monitors the four receive SerDes associated with the 4x10G or 4x25G link at the physical level. It also creates bit-error-rate (BER) eye diagrams, estimates the link BER from the vertical and horizontal BER bathtub curves and controls the PHY tuning in the transmit and the receive directions.
How it works
The BER eye-diagram provides a direct visual representation of the signal quality after RX equalization. The eye-diagram is formed by changing the time dimension (sampling delay) and the amplitude dimension (0/1 threshold) of the sampling point of the PHY step-by-step. For each sampling point (x,y), 1 million bits are measured, the number of bit-errors are counted and a simple division gives the BER. The result is the BER eye-diagram (see below).
The color map shows the measured bit-error rate for each point going from 1 million (maximum red) to zero (black). The color scale is logarithmic. Higher resolutions give a clearer diagram and higher values of X and Y will also give a higher precision in the vertical and horizontal bathtub curve estimations, respectively.
What it shows
The eye-data table provides an estimate of several parameters of the eye, including width, height and jitter. Future releases will also include link BER estimates based on the horizontal and vertical bathtub curves.
Please see our wiki for more information on the “eye” diagram feature.
- Dual-media support (QSFP28 or QSFP+ / CXP)
- Tri-speed – 1 x 100G or 2 x 40G or 8 x 10G ports
- Great price/performance
- Testing flexibility
- Ease of use
- Unique “eye” diagram for signal analysis
- Free software
- Three years’ free SW updates
- Three years’ free hardware warranty
- Free tech support for product lifetime