My friend this is called Daisy Chaining. And the actual device is called a splatter charge also known as an EFP(explosively formed penetrator). It was used with lethal effect in Iraq and was a tactic taught by Hezbollah militants.
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Different versions exist, some are command operated others use a hardwired sensor such as a PIR(Motion Sensor) that is primed manually or remotely by command.
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Abrams vs EFP Basra:
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Daisy chaining is nothing new, it’s a method used by engineers and miners to blast things since the invention of gunpowder. EFPs have been used by BLA militants for many many years, as early as 2003 BLA militants were using shaped charged to blow holes in gas pipelines - see image below:
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BLA militants using shaped charges to blow up gas pipelines in Sui.
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But the use of splatter charges is more recent and points to BLA militants receiving advanced IED training from Iran who are experts in EFP manufacture and deployment as seen in Iraq.
The threat from EFPs is present in Pakistan:
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Above photo is an EFP disarmed and seized in Balochistan by security forces after an IBO.
Here is another example of a EFP from Balochistan:
you will notice that both are command operated, one is connected to a PMR(walkie talkie), whilst the other has a det cord leading to the primer.
This is what makes countering EFPs so difficult because jammers don’t work, as militants will add failsafes to defeat traditional ECIED equipment such as jammers by using more traditional command operated devices by daisy chaining det cord and using pressure plates, trip wires or motion sensors.