Keysight 34972A - 34905 A;6 A Dual 4-Channel RF Multiplexers

4 Features and Functions
222 Keysight 34970A/34972A User’s Guide
34905A/6A Dual 4-Channel RF Multiplexers
These modules consist 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.
11
12
Com1
13
14
21
22
Com2
23
24
98
99
Bank Switch
Bank Switch
NOTE
– The 34905A is used for 50W applications. The 34906A is used for 75W
applications (mini SMBs).
– 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.
– This module responds only to the CLOSE command (OPEN does not apply).
To OPEN a channel, send the CLOSE command to another channel in the
same bank.