Abstract: An anchor assembly configured for receiving therein and gripping a wall is provided. The anchor assembly comprises first and second anchor arms pivotable between a collapsed, storage position and an open, operable position in which the anchor arms define therebetween a clamping area for receiving the wall. Each of the anchor arms has a bent shape which is open in the operable position toward the clamping area. Distal ends of the anchor arms comprise first and second contact arrangements configured for bearing on the wall during use. The first anchor arm comprises a coupling arrangement facilitating coupling thereto an external cable assembly. The anchor assembly is configured such that, when the wall is received within the clamping area and the contact arrangements bear against an opposite face of the wall, a force is applied to the anchor assembly away from the clamping area biasing the contact arrangements toward the wall.