Matrix Switches Section - JFW Industries

Matrix Switches 

Section 5


Model Number Index 

Please add connector type to the end of part number to complete model number (Example: 50MS-193 N). 

Blocking Matrix Switches 

Model Number Impedance Confi guration Frequency Range Control Page 

50MS-193 50 Ohm 2 X 4 Blocking DC-500 MHz Ethernet/RS-232 5-4 

50MS-211 50 Ohm 4 x 8 Blocking DC-6000 MHz Ethernet/RS-232 5-6 

50MS-232 50 Ohm 12 x 4 Blocking DC-4000 MHz Ethernet/RS-232 5-8 

Non-Blocking Matrix Switches 

Model Number Impedance Confi guration Frequency Range Control Page 

50MS-192 50 Ohm 24 X 3 Non-Blocking 800-2400 MHz Ethernet/RS-232 5-16 

50MS-216 50 Ohm 4 x 8 Non-Blocking 2000-3000 MHz Ethernet/RS-232 5-10 



Custom Capabilities with no NREs 

This section of the catalog showcases some standard blocking matrix switches. However, most of JFW’s test system 

business involves custom designed models. JFW does not charge NRE’s for custom models. We encourage you 

to email us your requirement (sales@jfwindustries.com). We will respond with a ROM (rough order of magnitude) 

quote in 1-2 days. Please include a block diagram with your request if you already have an idea of exactly what you 

require. 

Blocking Pros 

Lower insertion loss 

Higher port to port isolation 

Non-Blocking Pros 

All input ports available to all output ports all the time 

Blocking Cons 

Input ports not available to multiple output ports 

Non-Blocking Cons 

Higher insertion loss 

Lower port to port isolation 

Available Options 

- GPIB, RS-232, or Ethernet control - Frequency ranges from DC-18 GHz 

- Keypad & LCD display for manual control - Various RF connector options (BNC, TNC, SMA, N, etc.) 

- 19”, 23”, 24” rack enclosures - 50 Ohm and 75 Ohm impedance 

- Benchtop enclosures - Dual redundant power supplies 

5-2

3 X 3 Blocking Matrix Example 

The below schematic shows an example of a 3 X 3 blocking matrix. It is built with switches on both the 

input ports and output ports. Each output port can only be connected to a single input port. Also, each 

input port can only be connected to a single output port. This confi guration maximizes the isolation 

between ports and minimizes the insertion loss of the system. If you do require an input port be connected 

to multiple output ports at the same time, then you need to use a Non-Blocking Matrix Switch which is 

detailed in the next example. 

Both schematics on this page show some bolded connections. These bolded lines help to show the 

difference between the two types of matrix switch. For a blocking matrix switch, input #1 can only be 

connected to a single output. On the nonblocking matrix switch, input #1 can be connected to all outputs 

at the same time. 

3 X 3 Non-Blocking Matrix Example 

The below schematic shows an example of a 3 X 3 non-blocking matrix. It is built with power dividers on 

the inputs and switches on the outputs. Each input signal is split to all output switches. This confi guration 

provides greater switching fl exibility because you can have multiple output ports connected to the same 

input port at the same time. The power dividers help provide more possible connection confi gurations, 

but the power dividers also increase the insertion loss of the system. 

Both schematics on this page show some bolded connections. These bolded lines help to show the 

difference between the two types of matrix switch. For a blocking matrix switch, input #1 can only be 

connected to a single output. On the nonblocking matrix switch, input #1 can be connected to all outputs 

at the same time. 

5-3

Matrix Switch 

Model Configuration Impedance Frequency Range VSWR 

(maximum) 

Input Power 

(average) 

50MS-193 

2 x 4 Blocking Matrix Switch 

(all switches) 

50 Ohms DC-500 MHz 1.10:1 100 Watts (cold switched) 

Control 

Insertion Loss 

(maximum) 

Isolation 

(minimum) 

Switching Speed 

(typical) 

Ethernet(10/100)/RS-232/Manual 

0.5 dB 

Radio to Radio: 90 dB minimum 

Antenna to Antenna: 90 dB minimum 

20 milliseconds (after command is processed) 

(3 milliseconds typical processing time) 

AC Supply RF Connectors Operating Temperature Remote Commands 

100-240 VAC @ 47-63 Hz SMA or N female 0ºC to +50ºC Set Path, Read Input, Read Output, Identification, Change Baud Rate 

See next page for block diagram. 

5-4


JFW Model 50MS-193 Block Diagram 

5-5



(maximum) 

50MS-211 

4 x 8 Blocking Matrix 


Input Power 

(average) 

Control 

50 Ohms DC-6000 MHz 1.5:1 1 Watt Ethernet(10/100)/RS-232/Manual 


(maximum) 

1 dB DC-2500 MHz 

2 dB 2500-6000 MHz 

Isolation 

(minimum) 

70 dB DC-4000 MHz 

65 dB 4000-6000 MHz 




AC Supply RF Connectors Operating 

Temperature 

Remote Commands 


5-6



5-7



(maximum) 

50MS-232 

12 x 4 Blocking Matrix 


50 Ohms DC-4000 MHz 

1.5:1 DC-2000 MHz 

1.7:1 2000-4000 MHz 

Input Power 

(average) 

1 Watt 

Control 


(maximum) 

Isolation 

(minimum) 


Ethernet(10/100)/RS-232/Manual 

2.5 dB 

2.1 dB typical @ 4000 MHz 

Input to Input: 70 dB 

Input to Output: 70 dB 

Output to Output: 70 dB 



AC Supply RF Connectors Operating Temperature Remote Commands 

100-240 VAC at 47-63 Hz SMA female 0ºC to +50ºC 

Set Path, Read Input, Read Output, Identification, Change Baud 

Rate 


5-8



5-9


Model Configuration Impedance Frequency Range VSWR Input Power 

(average) 

50MS-216 4 x 8 Non-Blocking Matrix 50 Ohms 2-3 GHz 

1.5:1 typical 

1.7:1 maximum 

Control 

1 Watt Ethernet(10/100)/RS-232/Manual 


(nominal) 

12 dB 

Isolation 

(minimum) 

Input to Output - 70 dB 

Output to Output - 70 dB 

Output to Output switched to separate inputs - 70 dB 

Output to Output switched to same input - 20 dB 




AC Supply 

100-240 VAC at 47-63 Hz 

RF Connector Operating Temperature Remote Commands 

SMA female 0ºC to +50ºC Set Output, Read Output, Identification, Change Baud Rate 


5-10



5-11



(average) 

50MS-220 16 x 8 Non-Blocking Matrix 50 Ohms 800-2200 MHz 

1.7:1 maximum 

1.5:1 typical 

Control 

1 Watt Ethernet(10/100)/RS-232/Manual 


(nominal) 

15 dB @ 2200 MHz 

Isolation 

(minimum) 

Input to Input 68 dB 

Input to Output 50 dB 

Output to Output 28 dB 


(typical) 

20 microseconds (after command is processed) 


AC Supply 

100-240 VAC @ 47-63 Hz 


N female 0ºC to +50ºC Set Path, Read Input, Read Output, Identification, Change Baud Rate 


5-12



5-13



(average) 

50MS-225 

12 x 10 Non- 

Blocking Matrix 

50 Ohms 100-1500 MHz 

1.4:1 typical 

1.6:1 maximum 

Control 

1 Watt Ethernet(10/100)/Manual 


(nominal) 

Isolation 

(minimum) 


(typical) 

AC Supply 

20 dB @ 100 MHz 

22 dB @ 1500 MHz 

Input to Input 60 dB 

Input to Output 60 dB 

Output to Output 

(Different Inputs)60 dB 

Output to Output 

(Same Input) 20 dB 

20 microseconds (after command processed) 


100-240 VAC @ 47-63 Hz 


N female 0ºC to +50ºC Set Output, Read Output, Identification 


5-14



5-15



(average) 

50MS-192 24 x 3 Non-Blocking Matrix 50 Ohms 800-2400 MHz 

1.4:1 typical 

1.6:1 maximum 

+20 dBm 

Control Insertion Loss Isolation 

(minimum) 

Ethernet(10/100)/RS-232 

22 dB typical 800-1000 MHz 

24 dB maximum 800-1000 MHz 

26 dB typical 1000-2400 MHz 

28 dB maximum1000-2400 MHz 

Input to Input - 20 dB 

Input to Output - 50 dB 

Output to Output - 50 dB 


(typical) 

100 microseconds (after command is processed) 


Attenuation Range Attenuation Accuracy AC Supply RF Connectors Operating Temperature 

0-63 dB x 1 dB 

±0.4 dB or 2% 100-240 VAC at 47-63 Hz N female -55ºC to +85ºC 

Remote Commands 

Set Input, Read Input, Set Attenuator, Read Attenuator, Identification 


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5-17

Matrix Switches Section - JFW Industries

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