2
General Information
1.2 MMS SPDT Matrices
MMS
stands for
Miniature Multiple Switches
. It is a Mini-Matrix where a
number of independent latching SPDT (Single Pole Double Throw) and/or SPnT
(Single Pole n Throw) switches are populated on the front panel. From an RF
point of view the switches are not interconnected and all of the
switch’s RF
ports are available to the user on the front panel of the Mini-Matrix.
Examples of a Mini-Matrix Models
with 2 independent SPDT switches with 1 independent SP6T switch
Part Numbering Examples:
MMS-A26S-2TSPDT
Is a
M
iniature
M
ulti
S
witch matrix with
following characteristics: A, 26.5 GHz, SMA,
2 Terminated SPDT switches
MMS-A26S-2SPDT
Is a
M
iniature
M
ulti
S
witch matrix with
following characteristics: A, 26.5 GHz, SMA,
2 non-terminated SPDT switches
The part numbering is interpreted as follows:
MMS-[chassis size][frequency][connector]-[number of switches]/[type of switch]
[chassis size]:
A, B, C etc.
[frequency]:
12 (for 12.4 GHz) | 18 (for 18 GHz | 26 (for 26.5 GHz) | 40 (for 40 GHz)
[connector]:
B (for BNC) | N (for N) | S (for SMA) | K (for 2.9 mm)
[number of switches]:
1 | 2 | 3 | 4 | 5 |… |16
(or more if chassis size allows)
[type of switch] :
SPDT | X (for transfer switch = DPDT) | 4 (for SP4T) | 6 (for SP6T) |
8 (for SP8T) | 10 (for SP10T) |12 (for SP12T).
If switch type is ter
minated, add ‘T’ to the number.
Example: 6T (terminated SP6T)
[number of switches]/[type of switch]: If different switch types are combined, repeat this section
as needed.
Example: MMS-A26S-2TSPDT-2SPDT
(2 terminated SPDT + 2 non-terminated SPDT)
Example: MMS-A26S-1TSP6T-4SPDT
(1 terminated SP6T + 4 non-terminated SPDT)
Note: not all switch configurations and combinations are possible.