Keysight 34947A/004 - Triple 1x2 SPDT Unterminated Microwave Switch Module for 34980A; with 3 x N1810UL 4 GHz Terminated Switches
The 34946A and 34947A modules provide single-pole, double-throw switches in 4 GHz, 20 GHz, and 26 GHz options. The 34946A and 34947A modules are also available with no switches installed - but include cable kits that allow you to connect switches external to the module chassis.
The 34946A and 34947A modules do not connect to the analog buses. Instead, all connections are made through the visible SMA connectors via external cables. Each connector on the modules is labeled with a three-digit number that represents a channel you can control programmatically from the front panel or from the Web UI.
The 34946A module (Options 004, 020, 026) has two independent Keysight N1810TL switches. These terminated 3-port 50-ohm switches are designed to maintain impedance matching. The 34947A module (Options 004, 020, 026) contains three independent Keysight N1810UL switches. These higher density 3-port switches are unterminated.
34946A Option 001 contains cables and connectors to support two of the supported switches listed above.
34947A Option 001 contains cables and connectors to support three Keysight N1810UL switches.
34946A part numbers
- 34946A/001 - mount your own N1810 switches or drive 2 N1810 external to the module
- 34946A/004 - with 2 x N1810TL 4 GHz Terminated Switches
- 34946A/020 - with 2 x N1810TL 20 GHz Terminated Switches
- 34946A/026 - with 2 x N1810TL 26.5 GHz Terminated Switches
34947A part numbers
- 34947A/001 - mount your own N1810 switches or drive 3 N1810 external to the module
- 34947A/004 - with 3 x N1810UL 4 GHz Terminated Switches
- 34947A/020 - with 3 x N1810UL 20 GHz Terminated Switches
- 34947A/026 - with 3 x N1810UL 26.5 GHz Terminated Switches
| 34946A | 34947A |
| Dual 1x2 SPDT Terminated Microwave Switch | Triple 1x2 SPDT Unterminated Microwave Switch |
| Option 001: no switches installed | Option 001: no switches installed |
| Option 004: 4 GHz switches installed | Option 004: 4 GHz switches installed |
| Option 020: 20 GHz switches installed | Option 020: 20 GHz switches installed |
| Option 026: 26 GHz switches installed | Option 026: 26 GHz switches installed |
| Supported switches | Supported switches |
| N1810UL Unterminated 3-port SPDT | N1810UL Unterminated 3-port SPDT |
| N1810TL Terminated 3-port SPDT |
|
| N1811TL Terminated 4-port transfer |
|
| N1812UL Unterminated 5-port transfer |
|
| Required N1810 options: | Required N1810 options: |
| Opt. 124 - 24 Volt coil voltage | Opt. 124 - 24 Volt coil voltage |
| Opt. 201 - “D” subminiature 9-pin female connector | Opt. 201 - “D” subminiature 9-pin female connector |
| Opt. 402 - Position indicators | Opt. 402 - Position indicators |