If switchboards, as set forth in § 20:10:28:21, are of the key pulsing type, the cost of the key pulsing senders, link, and trunk finder equipment is included with the switchboards.
S.D. Admin. R. 20:10:28:23
General Authority: SDCL 49-1-11, 49-31-5, 49-31-18.
Law Implemented: SDCL 49-31-18.
Operator systems equipment - category 1, 47 C.F.R. § 36.123(a) (1991).