Specifications include, but are not limited to: A. SLIDE GATE OPERATOR SYSTEM The gate operator shall be a Linear Model VSGSLG with one (1) HP motor and heater. No other brands or models are being considered at this time. There are currently four (4) gate openers that need to be replaced. The actual number of openers that will be replaced will be dependent on cost bid and available funding. Rock County does not guarantee that all four openers will be replaced. B. SLIDE GATE OPERATOR 1. The slide gate operator shall use a microprocessor based solid-state control board that controls all functions of the slide gate operator. Operator shall be rated for continuous duty for use in commercial and industrial maximum security applications, and supplied with a heating unit for its proper operation during winter conditions. 2. Motor shall be directly coupled to the primary gear reduction system. 3. Primary reduction and power transfer shall be provided by a heavy-duty worm gear running in a continuous oil bath. 4. Operator limit switches shall be internally driven and shall not be accessible, easily tampered with or activated from outside the operator cabinet. 5. Pulling medium shall provide a positive mechanical connection to the gate system. Friction driven rail type pulling mediums shall not be allowed. Roller chain pulling medium shall be minimum size #50. 6. Operator shall function as a fail-secure device and shall provide a positive gate lock without the need of additional hardware or equipment. 7. Operator shall be capable of being mounted at the front, center, or rear of the gate system, shall be designed for either left or right hand mount and shall be designed for pad or pedestal mounting. 8. Operator housing shall use 12-gauge G90 galvanized steel to avoid rusting and shall be painted charcoal gray. 9. Operator shall have two 115 VAC convenience outlets available for accessory transformer power and shall have a guilt-in lockable power disconnect and reset switch. C. CONTROL CIRCUIT 1. A warn-before-operate function shall activate the internal operator alarm 3-5 seconds prior to gate movement. 2. Control board shall have connections for optional Gate Tracker board. Gate tracker shall record operator cycles (x100), input errors, loop detector errors, obstruction hits, and power up events. Record shall be time and date stamped. 3. Control board shall allow a stop or a stop and reverse function (settable) from a safety related input. 4. Control board shall have two ports for plug in of vehicular loop detectors (Door King, Models 9405 or 9406). 5. A dry set of relay contacts shall be available for external use, and shall have four programmable functions. 6. A special input shall allow the gate to be partially opened. 7. A timer override function shall cause an opening gate to stop and then reverse direction when the reverse loop(s) or reverse input is clear even if the gate has not reached the full open opposition, to help reduce tailgating. 8. Control board shall have separate inputs for external contact and non-contact entrapment protection devices. 9. Functions will be user programmable by DIP-switches located on the control board. 10.Specific frequency shall be approved by the owner. Each gate operator must be equipped with one R.F. receiver (Linear AP-4 or approved equal) and two transmitters for remote control. Transmitter shall be linear MDT-4A (five channel) or approved equal.