Comments

Comm. NT: 61.
Saṅkhārakkhandhakathāvaṇṇanā

“‘On any one side’ means on any one side of itself, like a pair of planks and so on.
‘Non-adherent’ means not sticking (asaṃsilissamāna).
It is only the impact without adherence that contact shares with visible data and sound, not the objective field.
Just as, though eye and ear are non-adherent respectively to visible data and sounds still they have the word ‘touched’ used of them, so too it can be said of contact’s touching and impinging on the object.
Contact’s impinging is the actual concurrence (meeting) of consciousness and object”

For “non-adherent” see §46.

пали	Ekadesena ca analliyamānopi rūpaṃ viya cakkhu, saddo viya ca sotaṃ cittaṃ ārammaṇañca saṅghaṭṭeti, tikasannipātasaṅkhātassa attano kāraṇassa vasena paveditattā sannipātapaccupaṭṭhāno.
Nyanamoli thera	And [as to its function], although it is not adherent on anyone side61 as eye-cum-visible-object and ear-cum-sound are, yet it is what makes consciousness and the object impinge. It is said to be manifested as concurrence because it has been described as its own action, namely, the concurrence of the three [(cf. M I 111), that is, eye, visible object, and eye-consciousness].