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 12
2 13
1
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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