Gtech GWT154 User manual

PROPRIETARY NOTICE:
This document contains GTECH confidential and proprietary information, know-how, trade secrets,
intellectual property and/or methodologies and is intended only for the use of the individual or entity to
which it is addressed. It may be privileged, and is proprietary, confidential and otherwise exempt from
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transferred without proper prior authorization from GTECH.
Proprietary Notice applies to all pages
APPROVALS DATE
AUTHOR:
Henry Constant
RESPONSIBLE ENGINEER:
Henry Constant
GTECH Aircon Radio (Model GWT154)
User’s Guide
MANUFACTURING ENGINEER:
S. Leigh
QUALITY:
Ray Snow
NO. 96-1886-01E
REV. 1.1
PAGE 1OF 72
REV DESCRIPTION DATE REVIEWED
1.0 Initial Document June 29, 2011
1.1 Updated Transmit Power settings July 5, 2011

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1.1
GTECH Aircon Radio (Model GWT154)
PAGE 2OF 72
TABLE OF CONTENTS
1.0INTRODUCTION ..........................................................................................................4
1.1Purpose, Overview & Scope......................................................................................................4
1.2Audience....................................................................................................................................4
1.3Applicable Documents...............................................................................................................4
2.0Key Features....................................................................................................................5
3.0GWT154 Wireless Transceiver Application Circuits..................................................6
3.1System Components ..................................................................................................................6
3.2Electronics Overview.................................................................................................................6
3.3Radio Module Pin Definitions...................................................................................................7
3.4Mechanical Drawings................................................................................................................9
3.5Mounting Considerations.........................................................................................................10
3.6Radio Module Performance Characteristics............................................................................13
3.7Host Board Electrical Characteristics......................................................................................15
3.8GWT154 Recommended Configurations................................................................................15
3.9RF Module Operation..............................................................................................................17
3.10Setting Compliance Limits When Using Host Software.........................................................20
4.0Wireless Network Infrastructure................................................................................21
4.1Establishing Network...............................................................................................................21
4.2Device Joining.........................................................................................................................21
4.3Device Security........................................................................................................................22
4.4Non Volatile Settings...............................................................................................................24
5.0Wireless Data Transport..............................................................................................25
5.1End Device selection ...............................................................................................................25
5.2Data Security ...........................................................................................................................26
5.3Acknowledgement...................................................................................................................27
5.4Single Unicast MAC Packet....................................................................................................28
5.5Fragmented Packets.................................................................................................................28
5.6Fragmentation Packet Structure...............................................................................................29
6.0Wireless Inter-communication....................................................................................32
7.0Host and Peripheral Wired Interfaces........................................................................33
7.1Wired Inter-communication.....................................................................................................33

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7.2Wired Interface Infrastructure .................................................................................................37
8.0User Interface................................................................................................................57
8.1Uninstalled Radio ....................................................................................................................57
8.2End Device Joining..................................................................................................................57
8.3Radio Programming.................................................................................................................57
8.4Alternate Configuration and Setup Tool..................................................................................57
9.0Host Port Configuration Sequences............................................................................59
9.1Coordinator Configuration, Network Start and Joining ..........................................................59
9.2Coordinator Configuration Setting Firewall Address Mask....................................................63
9.3Coordinator Configuration – Get End Device Statistics..........................................................64
9.4Coordinator Configuration – Setting End Device Parameters.................................................65
9.5Peripheral Configuration, Status..............................................................................................66
10.0Agency Statements........................................................................................................67
10.1Federal Communication Commission Interference Statement................................................67
10.2Industry Canada Statements ....................................................................................................68
10.3OEM Responsibilities to comply with FCC and Industry Canada Regulations......................70
10.4End Product Labelling.............................................................................................................71
11.0Contacting GTECH Corporation................................................................................72

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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

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2.0 KEY FEATURES
802.15.4-2006 compliant transceiver operating in the unlicensed Industrial, Scientific, and
Medical (ISM) frequency band of 2.400 – 2.4835 GHz.
Lost Link Prevention – The GWT154 provides a failsafe timeout in the event the GTECH
Terminal doesn’t receive a response from the peripheral.
The GTW 15.4 provides security:
oUses AES 128 bit authentication and packet encryption
oUses EUI-64 (MAC address) filtering to keep rogue devices off the network
oUses the GTECH Terminal for initialization and authorization of End Device
peripherals. This allows GTECH the ability to integrate the local security measures with
field service installations.
oUses a peripheral addressable firewall to exclude single or multiple peripherals from
accessing the GTECH 485 Bus
The GWT154 supports the GTECH 485 Packet Protocol over the following data interfaces:
oGTECH RS-485 (Half duplex 4-wire, DB-9)
Two pairs of uni-directional lines.
The terminal always transmits on Tx± and receives on Rx±.
Female 9-pin DSUB receptacle.
Reset-on-Break support in accordance with [3].
oUSB 2.0 Type B Mini
oInternal 3.3V UART
The following form factors are supported.
oPinned module – For new embedded designs or as an OEM module replacement
1.0” (W) x 1.33” (L) (UART two 1x10 headers)
oDongle – For existing or legacy GTECH online terminals or RS-485 peripherals
2.1” (W) x 2.6” (L) (RS-485 DB9F or USB 2.0 Type mini B interface)
The transceiver will be used only indoors.
RF power will be software selectable at 10mW (10dBm) or 63mW (18dBm) during operation
with a 1dB resolution.
An internal chip antenna is on the circuit board along with a software switchable RF connector
for an optional external antenna connection.
The transceiver derives its power from the following options.
oSpecific interface ports in the dongle configuration.
RS-485: +12V and/or +5V, 300 mA available.
USB: +5V BUS supply
oPCB pins in the OEM replacement module configuration.
oDC power connector – A wall mount power transformer with integral 6 foot cord.
Storage Environment
oTemperature: -40 to +80°C.
oRate of change: 20°C per minute
oHumidity: 10 to 90%, noncondensing.
Operating Environment
oTemperature: -40 to +80°C.
oRate of change: 10°C per minute
oHumidity: 10 to 90%, noncondensing.
Radiated and conducted limits meet FCC part 15 and Industry Canada ICES-003 emission

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standards.
The product complies with all current European Union Directives applicable to CE marking.
RoHS compliant.
3.0 GWT154 WIRELESS TRANSCEIVER APPLICATION CIRCUITS
The Radio Module is a standalone RF module with an optional external dipole antenna. It is intended
to be an RS-485 cable replacement for new GTECH embedded applications or as an OEM replacement
module for our suppliers of GTECH equipment.
For existing or legacy GTECH products, the Radio Module should be mounted to the Host Board via
the two 1x10 headers. These mated boards are enclosed in a plastic housing and this constitutes the
Dongle solution.
3.1 SystemComponents
The GWT154 Wireless Transceiver consists of the following components:
Radio module (51-1884-01E) – Standalone for new designs or as an OEM replacement
module
oRadio Module Label (14-2027-02E)
oOptional External Antenna with Cable
Carrier/Host board (51-1885-01E) – Optional for legacy products
Plastic enclosure (Dongle) – Optional for legacy products
oPlastic Parts (16-2104-502E & 16-2105-502E)
oDongle Label (14-2027-01E)
Wall mount Power Supply – Optional for legacy products
oUS: 50-0347-01E
oUK: 50-0347-02E
oEU: 50-0347-03E
Interface cables – Optional for legacy products
oUSB A to USB mini B Cable (32-1743-01E)
oRS-485 Straight pinned Cable (32-1344-03E)
oRS-485 Crossed pinned Cable (32-1744-01E)
Note: Optional components are used based on the specific installation requirements.
3.2 ElectronicsOverview
The electronic design solution for this product consists of two PC boards.
Radio module. This stand-alone module will be the solution for new embedded designs
or for an OEM module replacement. The two 1 x 10 pin headers will be the interface to
the radio module for all configurations. The radio module will consist of the Texas
Instruments CC2530 SOC, the Texas Instruments CC2591 Front end module, a
Johanson 2450AT18A100 chip antenna, and a Hirose U.FL coaxial RF connector.
A host board will consist of the GTECH RS-485 interface, USB 2.0 interface, DC
power jack, and interface connectors to plug the radio module into. The combination of
these two boards with the plastic enclosure will provide the solution for the dongle.

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Figure 1 – Block Diagram
3.3 RadioModulePinDefinitions
The communication between the Host board and the Radio module is via UART.

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Figure 2 - The interface pin numbering (top side view)
Pin
#
NAMEDESCRIPTION
1VCC3.3Vdc
2UTXUARTdataoutfrommodule
3URXUARTdataintomodule
4NCNoConnect.ModuleoptiontoconnecttoportP1_5
5RESET_NModuleReset
6NCNoconnect.ModuleoptiontoconnecttoportP2_0
7P2_2/DCCC2530DebugClock.Forprogramminganddebuggingofradiomodule
CC2530
8P2_1/DDCC2530DebugData.Forprogramminganddebuggingofradiomodule
CC2530
9DTR_NDataTerminalReadycommunicationline
10GROUNDGround
11NCNoConnect
12CTS_NCleartoSendFlowControl
13SLEEP_NModulestatusindicator
14NC/P1_6/UTX1NoConnect.ModuleoptiontoconnecttoalternativeUARTTXD
15NC/P1_7/URX1NoConnect.ModuleoptiontoconnecttoalternativeUARTRXD
16RTS_NRequesttoSendFlowControl
17TX_ENRS‐485driverenableoutputline.Disablesbusdriverduringhardware
reset
18NCNoConnect.ModuleoptiontoconnecttoportP1_4
19NCNoConnect.ModuleoptiontoconnecttoportP1_2
20STATUS_LEDNoConnect.ModuleoptiontoconnecttoportP1_0
Table 1 - The interface pin assignments and definitions

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3.4 MechanicalDrawings
Figure 3 - Radio Module (1.0” x 1.33”) (antenna option not shown)
Figure 4 - Host Board with Radio Module (1.6” x 2.25”)

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Figure 5 - Plastic Enclosure (2.1" x 2.6")
3.5 MountingConsiderations
The GWT154 Radio Module was designed to mount into a receptacle (socket) and therefore does not
require any soldering when mounting it to a board.
3.5.1 NewGTECHEmbeddedApplicationsorOEMReplacementModules
For new designs, the footprint design on the host/carrier board will depend on the host/carrier board
requirements, desire for compatibility with other GWT154 series modules, and the desired antenna.
(Note: Figure 6 – Example of the GWT154 Radio Module mounting to a Host/Carrier Board does not
show the external antenna option.)