No
. 96-1886-01E
Rev
.
1.1
GTECH Aircon Radio (Model GWT154)
PAGE
4
OF
72
1.0
INTRODUCTION
1.1
Purpose,
Overview
&
Scope
The purpose of this document is to provide details regarding the use of the GWT154
transceiver module as a cable replacement between GTECH online lottery terminals and
associated peripherals. The GWT154 transceiver module is based on the IEEE 802.15.4-2006
standard, this wireless link provides a point to multipoint peripheral bus with low latency and
modern security features.
The link operates in the 2.4GHz band with low power, making it suitable for license-free
worldwide operation.
The link will use AES 128 bit authentication and packet encryption available as part of the
802.15.4 standard. It will also use EUI-64 (MAC address) filtering to keep rogue devices off
the network. It relies on the GTECH online lottery terminal for initialization and authorization
of End Device peripherals. This allows GTECH the ability to integrate the local security
measures with field service installations and manufacturing operations, as well as to provide
security audit trails, without on-site technical staff.
This document describes the electrical and wiring considerations when interfacing the
GWT154 module with a GTECH online lottery terminal and a peripheral.
Peripheral devices include (but are not limited to) the following:
Ticket Scan
Accutherm Supreme and Accutherm Ultra printers
Customer Display Units
Jackpot Signs.
1.2
Audience
This document is intended to be read by engineers and technical management. A general knowledge
of common engineering practices is assumed.
1.3
Applicable
Documents
96-1886-00E, GTECH Wireless Peripheral Transceiver, Rev 3.1, June 2, 2010
96-0258-01, Spec Protocol 485 Bus Packet, Rev D
96-0320-01, RS-485 Physical Interface Specification, Rev C, September 2, 2003
33-0154-01E, System Diagram GWT154, Rev 1, June 3, 2011
