This module consists of two independent 4-to-1 multiplexers. The channels in each bank are organized in a "tree" structure to provide high isolation and low VSWR. Both banks have a common earth ground. This module does not connect to the internal DMM. You can connect your signals directly to the on board SMB connectors or to the SMB-to-BNC cables provided with the module.
Note: The DAQ application does not support direct control of channel operations on the non-scanning (switching) modules. You can, however, configure alarm conditions on the scanning modules to control operations, such as closing or opening channels, on the non-scanning modules (see Alarm Limits).
Notes:
The Keysight DAQM905A is used for 50Ω applications.
You can close only one channel per bank at a time on these modules; closing one channel in a bank will open the previously closed channel. One channel in each bank is always connected to COM.
You can only close channels on this module (open does not apply). To open a channel, close another channel in the same bank.
Refer to the Keysight 34970A/34972A or DAQ970A User's Guide for safety information and module wiring instructions.