Datalogic STARGATE RF910MHz Quick start guide

Datalogic_Block_Diagram Revision: 1.00 6/19/2003 Signature: F.Giovanetti page 1of 6
DATALOGIC PROPRIETARY INFORMATIONS
Block Diagram STARGATE RF910MHz
BASE STATION
Author: Datalogic

Datalogic_Block_Diagram Revision: 1.00 6/19/2003 page 2of 6
DATALOGIC PROPRIETARY INFORMATIONS
STARGATE RF910MHz: FUNCTIONAL DESCRIPTION AND BLOCK DIAGRAMS
Functional blocks description with reference to page 3/4/5 block diagrams:
Main Processor
It’s a 16 bits embeeded Microprocessor (Mitsubishi 37733) with internal Flash and Ram memories. Static Ram:
128 kB. Flash memory: 128kB
It runs at 12 Mhz. This processor moves data between other blocks and controls block funtionality.
Radio Transceiver
Receives and transmit data packets at 36864 baud Manchester encoded.
Tx Power out (50 Ohm) + 0 dBm typ.
Tx FM deviation = 45 KHz typ.
State Indicators
One led using red, orange and green colors.
Antenna
StarGate has an external antenna not removable.
UART
Two external UART (16550) which drives respectively the Radio Transceiver and the 232/485 input-output
interface. It’s frequency work is 3.6864 MHz.
PIC
Programmable OTP microcontroller which converts uart NRZ (start+data+stop) bits into radio output
Manchester RZ data bits. It works at 3.6864 MHz.
Power Supply (Step Down)
No batteries.
Supplies 9-30 Vdc. It sources 70 mA.
An interface reset button is included.
Multiinterface
Transmit and received the data via RS232 and RS485 interface.
Clock sources description
12.00 MHz Quartz Crystal Main Microprocessor Clock (onto GEL-4734)
3.6864 MHz Ceramic Resonator Microcontroller + UART (onto GEL-4734)
3.6864 MHz Ceramic Resonator UART (onto GEL-2372)
Radio transmitter/ receiver:
X1: 14.21875MHz XTAL TX
X2: 14.05160MHz XTAL RX
RF suppression devices:
On dc power input:
N.2 inductor 1uH TDK NCL453232T-1R0K
N.2 ferrite bead TDK ZBFS5101

Datalogic_Block_Diagram Revision: 1.00 6/19/2003 page 3of 6
DATALOGIC PROPRIETARY INFORMATIONS
N.2 capacitors X7R C=220nF
N.1 capacitors 2F4 C=100nF
On 232 interface port:
N.4 ferrite bead MURATA BLM21A601S
On 485 interface port:
N.2 ferrite beads MURATA BLM21A601S

Datalogic_Block_Diagram Revision: 1.00 6/19/2003 page 4of 6
DATALOGIC PROPRIETARY INFORMATIONS
STARGATE BLOCK DIAGRAMS
Fig. 1 -Block Diagram of the Connections inside STARGATE RF910MHz BASE
STATION and Printed Circuit Boards.
MAIN BOARD STARGATE RF910MHz (USA)
GEL
-
4734
Radio Board
RF ?ISA GEL
-
2372
UART 16550
16 BIT MICROPROCESSOR
M37733
MULTIPLEXER
RS232/RS485
RS232
RS 485
POWER
SUPPLY
PLUG-IN
STEP
DOWN
RS 485
reset
Telital Radio
Module
RT-14 Antenna

Datalogic_Block_Diagram Revision: 1.00 6/19/2003 page 5of 6
DATALOGIC PROPRIETARY INFORMATIONS
Fig. 2 -Block Diagram of the EUT
LEDINDICATOR
(red,orangeandgreen)
MAIN
PROCESSOR
910 MHZ
RADIO
TRANSCEIVER
EXTERNAL
ANTENNA
STEP DOWN
JACKPLUG-IN
5VDC POWERSUPPLY
UART
RS232
PIC
3.6864 MHz
CERAMIC
RESONATOR
12 MHz QUARTZ CRYSTAL
RS485 RS485
RESET
UART
3.6864 MHz
CERAMIC
RESONATOR
MULTIPLEXER

Datalogic_Block_Diagram Revision: 1.00 6/19/2003 page 6of 6
DATALOGIC PROPRIETARY INFORMATIONS
Fig. 3 -Block Diagram of Transceiver