NEMA All "NEMA" equipment shall comply with all applicable provisions of the National Electrical Manufacturer's Association TS1 specification and shall be compatible with 2070 traffic signal controller assemblies, including pre-emption, four-ring, and closed loop system operation. GDOT Specifications All items shall be in conformance with current Georgia Department of Transportation (GDOT) Standard Specifications and Special Provisions (as of the date of this advertisement) or as modified herein. Sections and/or Special Provisions 647, 925, 926, 927, 935, 936, 937, 939, & 942 will be most pertinent. Please note that the GDOT traffic signal standard details along with specifications 647, 925, and 937 were modified in 2021. Materials that meet the previous GDOT specifications but do not meet the 2021 GDOT Specifications will be considered for approval by Gwinnett County DOT on a case-by-case basis. Gwinnett County DOT Special Provisions All items shall be in conformance with current Gwinnett County Department of Transportation (GCDOT) Special Provisions or as modified herein. In particular, this includes 682, 925, 926, 935, 936, 937, 939, and 942. These Gwinnett County special provisions have been added as an attachment to this document. Type 2070LX Equipment (Items 1-13) These units shall comply with the current GDOT Standard Specifications Section 925 with following additional requirements. The 2070LX controller units and 2070 1C Modules shall be compatible with the current Georgia Department of Transportation licensed firmware. Each 2070LX controller unit and 2070 1C Module shall be shipped to Gwinnett County with the current GDOT license intersection firmware installed and operational.
