Datalogic 0015 RADIO STAR-MODULE 910 User Manual InstallationManuaSM910

Datalogic SpA RADIO STAR-MODULE 910 InstallationManuaSM910

Module Installation Manual

InstallationManuaSM910 Revision: 1.0 14/11/05 Signature: page 1 of 6 DATALOGIC PROPRIETARY INFORMATIONS Installation Manual STAR-Module 910MHz Author: Datalogic, R&d dept.
STAR-Module 910 InstallationManuaSM910 page 2 of 6 DATALOGIC PROPRIETARY INFORMATIONS Document History 11/11/2005 Rev. 1.0
STAR-Module 910 InstallationManuaSM910 page 3 of 6 DATALOGIC PROPRIETARY INFORMATIONS Document History.............................................................................................................................................................2 Introduction ......................................................................................................................................................................4 Digital interface ................................................................................................................................................................5 RF interface.......................................................................................................................................................................5 Examples ...........................................................................................................................................................................5 OM-Gryphon ..................................................................................................................................................................5 Dragon Mobile................................................................................................................................................................6
STAR-Module 910 InstallationManuaSM910 page 4 of 6 DATALOGIC PROPRIETARY INFORMATIONS Introduction The STAR-Module 910 is an FSK RF half-duplex transceiver working at 910MHz, made to be installed on fixed or mobile devices. 10 9 8 7 6 5 4 SHIELD 3 122 131 11 Number Direction Description 1 - GND 2 Input Data In 3 Output CD# (Active Low) 4 Output Data Out 5 Output 3V 6 - GND 7 - Vcc (5.5 – 3.13V) 8 Input TX Command (Active High) 9 Input RX Command (Active High) 10 - GND 11 - GND 12 - GND 13 Input/Output RF Antenna
STAR-Module 910 InstallationManuaSM910 page 5 of 6 DATALOGIC PROPRIETARY INFORMATIONS Digital interface Digital Interface with host system Data communication with host is implemented using a UART @38400, N, 8, 1 with TDX and RXD negated values: this means that data lines are low (0 V) in idle state and go high upon a start bit. Host system must provide to inverter gates between its UART and the STAR-Module 910MHz. Control is implemented using TX CMD and RX CMD lines and receiving Carrier Detect indication (refer to operating description for details) . RF interface STAR-module has 50Ohm impedance on RF out in TX and RX mode, therefore impedance matching is required for antenna system of host. Care must be taken for the proximity of conductive materials or the user’s hand that will cause a mismatch of the antenna, decreasing the transceiver RF characterics. Moreover, care must be taken to ensure that the host system doesn’t have spurious emissions in the range 910MHz+/-100kHz, that could cripple receiver sensitivity: it is advised to put a ground plane under the RF module and to filter the power supply. Noisy parts, like system buses, must be shielded in order not to irradiate spurious fields. Examples OM-Gryphon
STAR-Module 910 InstallationManuaSM910 page 6 of 6 DATALOGIC PROPRIETARY INFORMATIONS Dragon Mobile

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