GSA Protocol Driving New Innovative Gaming Products of Today and Tomorrow. SAS protocol consists of 3 layers of physical layer, link layer, and application layer. The physical layer leverages RS at kbps of 1 start bit, 8 data. I have a Python script that communicates with the slot machine; I would like to know how Python does this and how to transfer it to Perl. 40ms when EGM support RTE (real time event) mode. GAME TO SYSTEM (G2S) VERSUS SLOT ACCOUNTING SYSTEM (SAS). My boss wants that the machine isn't playable if the player card isn't inserted. Slot Accounting System (SAS) Serial Communication Protocol, version , with The SAS Protocol Specification document is the property of. SAS protocol consists of 3 layers of physical layer, link layer, and application layer. The following table shows SAS — The SAS protocol only supports a limited subset of the GAT protocol. Download the article here. HOME. . Resources · SAS Protocol Overview · IGT Voucher Layout · Latest SAS Game Identification Codes (Table C-1). SAS (Slot Accounting System) is. 08/ proprietary SAS based slot machines. SAS is a serial protocol with RS or in some cases TTL levels.