In the rules, deployables cannot be placed while an enemy camo-marker is the sole elligible target within their 'Trigger Area' (capitalized as a proper term as listed in the wiki). However, while the only time that 'Trigger Area' is loosely and formally defined is in the context of mines, where a diagram is shown, the entry for Perimeter weapons lists an example where the trooper has to maneuver to deploy their Perimeter weapon with an elligible target in its ZoC (not specifically listed in the writing as a Trigger Area). So, first off, what deployables does this actually apply to? We know it applies to mines, as specific context is given and nomenclature applied. Do Perimeter weapons have Trigger Areas? I'm going to assume it's their ZoC. Can Perimeter weapons be placed in activation range of Camo Markers, since they can't actually trigger against Camo Markers? Do Armed Turrets have Trigger Areas? Can they be placed if the only enemy that the turret would have LoF to upon deployment would be a camo marker? Do Repeaters have Trigger Areas? Can they be deployed when the only thing in range of their ZoC is a camo marker? Does Deployable Cover have Trigger Areas?
That is a good question, the example on Perimeter Weapons alludes to "trigger Areas been whatever area/ range triggers the weapon, but it is not clearly defined.
On Minelayer, I think it's pretty clear that Trigger Areas are distinct from "the Zone of Control for Perimeter Weapons."