(1) An employer who is party to an arbitration may, before the day set for the arbitration—
(a) file notice that—
(i) the employer does not admit to liability on the claim; or
(ii) the employer submits to an award of the court for the payment of the amount of weekly compensation stated in the notice but does not admit liability on the claim; and
(b) pay into court—
(i) an amount sufficient to cover the liability the employer would have on the claim if the employer did not deny liability; or
(ii) the amount stated in the notice.
(2) A party filing notice under this rule must serve a copy of the notice on each other party to the arbitration.