Seneca Z-AIR Instruction Manual

Uhf radiomodem in the 868 – 870 mhz band

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Z-AIR -
UHF Radiomodem in the 868 - 870 MHz Band
General Index ................................................................................................................................................ page
1.0.0 General Information ............................................................................................................................ page
1.0.1 CE Conformity ................................................................................................................................................................. page
1.1.0 Quick reference features ..................................................................................................................... page
2.0.0 Technical Data ..................................................................................................................................... page
2.0.1 Absolute Maximum Ratings ............................................................................................................................................ page
2.0.2 Nominal and Operating Characteristics ......................................................................................................................... page
3.0.0 Circuit Description .............................................................................................................................. page
3.1.0 Cable connections, Supply and Installation Notes ............................................................................ page
3.1.1 Cable connections ............................................................................................................................................................. page
3.1.2 Supply Notes ..................................................................................................................................................................... page
3.1.3 Installation Notes .............................................................................................................................................................. page
4.0.0 Configuration and use of the Radiomodem ....................................................................................... page
4.0.1 Default Configuration ...................................................................................................................................................... page
4.1.0 Special Functions ................................................................................................................................. page
4.1.1 Duty Cycle Limitations .................................................................................................................................................... page
4.1.2 LBT, Listen Before Talk .................................................................................................................................................. page
4.1.3 AFA, Adaptative Frequency Agility ............................................................................................................................... page
4.1.4 PwSav, Power Saving function ........................................................................................................................................ page
5.0.0 Z-AIR Configuration ........................................................................................................................... page
5.1.0 The BASIC Page .................................................................................................................................. page
5.1.1 System Code ..................................................................................................................................................................... page
5.1.2 Rx and Tx Frequencies .................................................................................................................................................... page
5.1.3 RTC upd (real Time Clock Update) ................................................................................................................................ page
5.1.4 LBT (Listen Before Talk) ................................................................................................................................................ page
5.1.5 Broad. (Broadcasting) ...................................................................................................................................................... page
5.1.6 Power (R.F. Output Power) ............................................................................................................................................. page
5.1.7 Flow Control ..................................................................................................................................................................... page
5.1.8 Time DTX ......................................................................................................................................................................... page
5.1.9 Baud Rate DTE / Parity ................................................................................................................................................... page
5.1.10 Dig. In Repet. Time ........................................................................................................................................................ page
5.2.0 The ADVANCED Page ........................................................................................................................ page
5.2.1 Its Address ........................................................................................................................................................................ page
5.2.2 Target ................................................................................................................................................................................ page
SENECA s.r.l.
Instruction Manual
MI003150-E
In accordance with art. 13 of the Legislative Decree of
25th July 2005, no. 15 "Implementation of Directives
2002/95/EC, 2002/96/EC and 2003/108/EC, relative to
reduction of the use of hazardous substances in
electrical and electronic equipment, in addition to waste
disposal". The crossed bin symbol shown on the
equipment indicates that at the end of its working life
the product must be collected separately from other
waste. The user must therefore take the above
equipment to the appropriate differentiated collection
centres for electronic and electro technical waste, or
return it to the dealer when purchasing a new appliance
of equivalent type, in a ratio of one to one. Appropriate
differentiated waste collection for subsequent recycling,
treatment and environment-friendly disposal of the
discarded equipment helps to prevent possible negative
environmental and health effects and encourages
recycling of the component materials of the equipment.
Illegal disposal of the product by the user will be
punished by application of the administrative fines
provided for by the legislative decree no. 22/1997
(article 50 and following of the legislative decree no.
22/1997).
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Summary of Contents for Seneca Z-AIR

  • Page 1: Table Of Contents

    4.1.2 LBT, Listen Before Talk ..............................page 4.1.3 AFA, Adaptative Frequency Agility ..........................page 4.1.4 PwSav, Power Saving function ............................page 5.0.0 Z-AIR Configuration ........................... page 5.1.0 The BASIC Page ..........................page 5.1.1 System Code ..................................page 5.1.2 Rx and Tx Frequencies ..............................page 5.1.3 RTC upd (real Time Clock Update) ..........................
  • Page 2: General Information

    The device is completely transparent to the user and may be simply configured through a PC, using the dedicated confi- guring software, available for free download from our internet site www.seneca.it The Z-AIR is enclosed in a fiberglass tube with stainless steel fixing bracket and screws, including the integrated antenna. 1.0.1 CE Conformity The Z-AIR device is compliant to the following directives and related modifications: EN 301 489 –...
  • Page 3: Technical Data

    Internally limited. Both Led outputs are protected against overvoltages by the use of a transient voltage suppressor. 2.0.2 Nominal and Operating Characteristics The following Table 2 shows the Nominal and recommended Operating characteristics of the Z-AIR. Table 2: Nominal and Operating Characteristics...
  • Page 4: Circuit Description

    3.0.0 Circuit description The Z-AIR Radiomodem is made up by a motherboard, containing the switching supply, the RS-485 Interface and all the ancillary circuits, the dipole antenna and, finally, the radiomodem module. The Switching Supply receives the positive input voltage, in a range from 8 to 32 Vdc, and provides a stabilised supply voltage of 3.5 Vdc to all the sections of the device.
  • Page 5: Cable Connections, Supply And Installation Notes

    3.1.2 Supply Notes The supply voltage of the Z-AIR is included in the 8 → 32 Vdc range and the source of this voltage may be not stabilised, due to the internal switching regulator. The supply voltage input is protected against the polarity rever-sal but there is not an internal fuse because, in case of fault, its replacement would be not easy.
  • Page 6: Configuration And Use Of The Radiomodem

    Because the Z-AIR utilise a RS-485 Serial Port, a RS-232 to RS-485 or a USB to RS-485 converter is needed to configure the device, because the majority of current notebook computers uses only the USB ports.
  • Page 7: Z-Air Configuration

    2 – Connect the Z-AIR Radiomodem to the supply unit and to the PC, through the serial port converter. 3 – Open the configuration software and in the Option Menu choose the COM Port, in according to the availability of your computer, and, successively, the desired Operating Sub-Band.
  • Page 8: The Basic Page

    It’s used to avoid a partial packet transmission, if a dead time is present between the incoming bytes. The default va- lues of 10 milliseconds it’s generally adequate to avoid this phenomena but may be increased until it ceases. SENECA s.r.l. MI003150-E...
  • Page 9: Baud Rate Dte / Parity

    Parity Bit, if used. The permissible values are N = None, E = Even or O = Odd. The default value is N = None. 5.1.10 Dig. In Repet. Time This function is not available on the Z-AIR Radiomodem, therefore the related box is inactive (grey colour). 5.2.0 The ADVANCED Page In this page are shown all the Advanced Parameters of the device, specified for each operating channel.
  • Page 10: Addr To Dte

    5 (500 milliseconds) or 10 (1 second) is adequate. In the units used as Digipeaters, the Pwsava time is internally calculated by the firmware, therefore is not necessary to calculate it and, also for these units, may be set the same time used for the peripherals. SENECA s.r.l. MI003150-E Page 10 of 12...
  • Page 11: The Link Test Page

    5.4.1 Use of the Diagnostic out of the Configuration program The Z-AIR radiomodem allows the Diagnostic Mode without entering in the Configuration program. To allow this feature the radiomodem must be configured in a Addressing from DTE Mode and a particular hexadecimal string must be sent to the Radiomodem.
  • Page 12 The value of the Battery Voltage shows the supply voltage of the transceiver integrated circuit, therefore it remains con- stant, if the supply source is stabilised, otherwise it may vary, if the supply voltage is derived from a battery. All stated specifications are subjected to change without notice or obligation. SENECA s.r.l. MI003150-E Page 12 of 12...

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