- Combine up to 6 SPDT and 6 multiport high-performance building blocks in 2U footprint
- Extended life and self-terminating options provide maximum design flexibility
- Excellent repeatablity (< 0.03 dB) over lifetime minimizes measurement uncertainty
- Latching relay design reduces power consumption and improves repeatability and thermal stability
- Embedded web interface provides interactive utility to monitor and control relays from anywhere in the world
- Flexible API supports IVI and Linux development environments minimizing software investment
- LXISync implementation provides seamless test synchronization with external devices
- Store up to 128 relay configurations for quick recall, including automatic power up state
- Define exclude lists to avoid setting an undesirable configuration
- Relay odometer tracks closures to facilitate preventative maintenance
- Access to 32-bit TTL I/O for monitor and control of external devices
The EX72SF is a high-density microwave switching platform that is designed to address applications that demand maximum performance, flexible design options and an operating range to either 20 GHz, 26.5 GHz or 40 GHz. Configuration options include self-termination of unused ports, and an expected lifetime of > 5 million cycles. Any combination of up to twelve latching building blocks can be housed in a single 2U rack LXI Class A enclosure. Building block topologies include SPDT, SP4T, SP6T, and transfer switches, as well as a 6-line pass-through adapter and 32-bit TTL I/O bus that can be used to drive external circuitry.
| Step 1 | - | Start with the EX72SF base unit. It holds up to twelve microwave building blocks in two rack U (3.5'') height. |
| Step 2 | - | Select up to six SPDT and six multiport switches. |
| Step 3 | - | Contact VTI for price and delivery. |
The EX72SF software architecture has been developed to allow it to be easily integrated with other GPIB, PXI, VXI, or LXI instruments. The software drivers are based on the IVI industry standard and can be used within virtually any application development environment in addition to Windows and Linux operating systems. An intuitive graphical web-based interface provides the necessary tools for controlling and monitoring an EX71HD through local or remote access using familiar web browsers.
The EX72SF leverages the
EX7000-OEM feature set and provides users with tools that can be used to enhance the efficiency of their application, such as scan lists, exclude lists, programmable MBB and BBM, pre-defined configuration storage, LXISync and IEEE-1588 synchronization and triggering, and TTL I/O control of other devices.
The goal of a system engineer is to make a switching interface as invisible as possible to the rest of the system in order to maximize the integrity of the signals passing through it. The EX72SF uses relays that employ superior design technology and deliver unmatched isolation and minimal crosstalk resulting in a high-degree of confidence in measurement accuracy. However, the quality of a system design also depends on its ability to deliver repeatable measurement performance. Repeatability specifies the measure of change that occurs in insertion loss over the rated life of the switch and systems, that utilize relays with performance that drifts over time, drive the need for costly recalibration of the system. EX72SF switches guarantee an industry leading
repeatability of insertion loss within a maximum of 0.03 dB throughout its rated lifetime to provide consistent measurement performance.
The EX72SF platform further drives down the total cost of ownership by providing operating life of > 2 million cycles. Many automated test systems can execute thousands of cycles per day on a single relay, and for demanding applications such as, extended life (EL) options are available to extend the operating life to > 5 million cycles. With a powerful combination of economical price and outstanding performance, the EX72SF is capable of handling a wide array of application spaces ranging from aerospace and defense to commercial wireless products.
The EX72SF relays employ a unique design that ensure highly repeatable closures over time. The center conductor profiles are designed with a spherical mating surface that produces a wiping action as the jumper contact mates with the center conductor. The wiping action removes debris that forms between the contacts of electro-mechanical relays and causes measurement instability. The result is a higher degree of confidence in repeatable data throughout the life of the product.
| VSWR | Insertion | Loss | Isolation [EL*] |
| DC-4 GHz | 1.20:1 | 0.36 dB | 90 dB (100 dB) |
| 4-8 GHz | 1.35:1 | 0.42 dB | 90 dB (100 dB) |
| 8-12 GHz | 1.35:1 | 0.48 dB | 90 dB (100 dB) |
| 12-15 GHz | 1.45:1 | 0.52 dB | 70 dB (80 dB) |
| 15-18 GHz | 1.45:1 | 0.57 dB | 65 dB (70 dB) |
| 18-20 GHz | 1.70:1 | 0.60 dB | 65 dB (70 dB) |
| 20-26.5 GHz | 1.70:1 | 0.70 dB | 60 dB (65 dB) |
| 26.5-40 GHz | 1.95:1 | 0.10 dB | (65 dB) |
*(EL) = With Extended Life Option
| Switching Time | <15 ms |
| RF Impedance | 50 ohm |
| Lifespan (EL) | 2 million life cycles (5 million life cycles) |
| Repeatability | <0.03 dB, absolute |
| Connector | DC - 26.5 GHz SMA
DC - 40 GHz 2.92 (f) |
| Dimensions | 3.469" H x 17.25" W x 14.436" D |
Product Brochure
Data Sheet
VTEX Switch Software Manual
EX7000 Series User’s Manual
| Model | Relay Type |
| EX72SF | 2U LXI Class A enclosure |
| 7202-20 | SPDT, Latching 20 GHz |
| 7202-26 | SPDT, Latching 26.5 GHz |
| 7202-20T | SPDT, Self-Terminated, 20 GHz |
| 7202-26T | SPDT, Self-Terminated, 26 GHz |
| 7202-20TEL | SPDT, Self-Terminated, EL, 20 GHz |
| 7202-26TEL | SPDT, Self-Terminated, EL, 26 GHz |
| 7222-26 | Transfer, 26 GHz |
| 7222-26EL | Transfer, EL, 26 GHz |
| 7204-20 | SP4T, 20 GHz |
| 7204-26 | SP4T, 26 GHz |
| 7204-20T | SP4T, Self-Terminated, 20 GHz |
| 7204-26T | SP4T, Self-Terminated, 26 GHz |
| 7204-20TEL | SP4T, Self-Terminated, EL, 20 GHz |
| 7204-26TEL | SP4T, Self-Terminated, EL, 26 GHz |
| 7204-40TEL | SP4T, Self-Terminated, EL, 40 GHz |
| 7206-20 | SP6T, 20 GHz |
| 7206-26 | SP6T, 26 GHz |
| 7206-20T | SP6T, Self-Terminated, 20 GHz |
| 7206-26T | SP6T, Self-Terminated, 26 GHz |
| 7206-20TEL | SP6T, Self-Terminated, EL, 20 GHz |
| 7206-26TEL | SP6T, Self-Terminated, EL, 26 GHz |
| 7206-40TEL | SP6T, Self-Terminated, EL, 40 GHz |
