CXB/32×4 Mainframes and Expansion Chassis are built for either Nx8 or Nx4 Matrix configurations, where the number of installed switch modules determines the number of connections in the N direction. All systems are completely bidirectional, so either side of the matrix may be considered inputs or outputs. 

These Chassis control up to 16 switch modules in 16×8, 32×4 or dual 16×4 configurations. Available as single pole systems with the outer conductor of the BNC taken to ground, or isolated 2 pole systems switching both center conductor and ground. LEDs on the front panel show switch and power status. Add Switch Modules to complete the system.

Dimensions: 19″ Rack Mount (483 mm) 15″ deep (381 mm) 3.5″ (2 RU) high (90 mm)
Weight: 15 to 25 lbs (7 to 12 Kg) max AC Power : 75 Watts max. 110/220 selectable.

• DC to 50 MHz 50 ohm systems
• 2×8 to 16×8, 2×4 to 32×4 or dual 16×4 configurations.
• Single or two pole switch modules
• LAN, GPIB, USB, RS232 or Manual Control
• BNC connectors with outer conductor grounded, isolated or switched.

link to switch module selector