About Keysight L8990A-01A Switch with 89600 VSA Software

The 89600 VSA software supports the Keysight L8990A-01A switch. The L8990A-01A switch provides up to 32 RF Radio Frequency: A generic term for radio-based technologies, operating between the Low Frequency range (30k Hz) and the Extra High Frequency range (300 GHz). input ports for massive MIMO Multiple Input, Multiple Output: A physical layer (PHY) configuration in which both transmitter and receiver use multiple antennas. measurements.

The L8990A-01A switch can be used as a standalone 32-port switch, or it can be paired with a Keysight L8990A-01H switch for an expanded 64 port configuration. In the expanded case, the L8990A-01A module is the primary switch (Ports 1-32) and the L8990A-01H module is used as an expansion switch (Ports 33-64).

Figure 1. Block diagram of L8990A-01A (as supported by VSA), used as a standalone switch.

Figure 2. Block diagram of expanded 64-port configuration using L8990A-01A as the primary switch and L8990A-01H as an expansion switch.