If only two signals are involved, the switch can be described in the usual shorthand nomenclature as a single-pole double-throw
(SPDT) capable of connecting the DVM--the single pole--to either of the two signals.
Like their larger siblings, reed relays offer three general-purpose contact configurations: normally open single-pole single-throw (NO SPST); normally closed single-pole single-throw (NC SPST) and single-pole double-throw
The HB Series can be specified in single-pole double-throw
, momentary or maintained circuits.
These system-solution switches are Quad Single-Pole Double-Throw
(SPDT) video switches.
The device is a cost-effective device compared to alternative devices and can be used in instant power-up circuits for USB ports, double data rate (DDR) DRAM memory applications, or other circuits requiring a single-pole double-throw
(SPDT) device to switch between a standby voltage and a core voltage rail.