Wireless RF Transceiver ISL024DB1 Users Guide This document contains information about the hardware between ISL024DB1 between ISL024DB1 includes includes definitions, configuration information and mechanical drawings ion information and mechanical drawings information about the hardware interface transceiver and Receiver. Information transceiver and Receiver. Information interface interface theory of operation, specifications, theory of operation, specifications, the the Proprietary Material The information and descriptions contained herein are the property of ISL. Such information and descriptions may not be copied or reproduced by any means, or disseminated or distributed without the express prior written permission of ISL. This document is for information purposes only and is subject to change without notice. Statement of Limited Warranty ISL warrants equipment of its manufacture, and bearing its identification to be free from defects in workmanship and material for a period of 12 months for electronics and 12 months for mechanical parts and Temperature probes from date of delivery from the factory or authorised distributor under normal use and service and otherwise when such equipment is used in accordance with instructions furnished by ISL and for the purposes disclosed in writing at the time of purchase, if any. ISL liability under this warranty shall be limited to replacement or repair of any defective equipment or part which, having been returned to ISL, has been inspected and determined by ISL to be defective, excluding battery cells. THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EITHER EXPRESS OR IMPLIED, AS TO DESCRIPTION, QUALITY, AND MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE OR USE, OR ANY OTHER MATTER. Revision History Issue Date Author Comments 0-1 09/09/2011 Vahid Tambe Initial Release 0-2 29/09/2011 Rob Jevans Removed antenna references Operation is subject to the following two conditions: this device may not cause harmful interference, and this device must accept any interference received, including interference that may cause undesired operation. Caution: any changes or modifications not expressly approved by the Manufacturer could void the user's authority to operate the equipment. Contents 1. Safety Information .......................................................................................................................... 5 DECLARATION OF CONFORMITY ................................................................................................... 8 2. ISL024DB1 ..................................................................................................................................... 9 3. Theory of operation ......................................................................................................................... 9 3.1 Network Topologies ...................................................................................................................... 9 3.2 Point-To-Point............................................................................................................................... 9 3.3 Point-to -Multipoint .................................................................................................................... 10 3.4 Other network topologies ............................................................................................................ 11 4. Board Level Pin Assignments ....................................................................................................... 13 5. Specifications ................................................................................................................................ 14 1. Safety Information FCC WARNING This equipment generates or uses radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual. The user could lose the authority to operate this equipment if an unauthorized change or modification is made Agency Identification Numbers FCC ZWZISL024DB1 Part #
ISL024DB1 Approved Antenna List The ISL024DB1 has been designed with an internal PCB antenna only. Caution: Any changes or modifications not expressly approved by Invisible Systems could void the users authority to operate the equipment. FCC REQUIREMENTS NOTE: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does not cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Re-orient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment to an outlet on a circuit that is different from that to which the receiver is connected. Replacing battery
!CAUTION:
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS WARNING!
Only qualified service personnel may install this equipment. The instructions in this manual are intended for use by qualified service personnel only. Only qualified persons should service the system. The installation and service of this hardware is to be performed only by service personnel having appropriate training and experience necessary to be aware of hazards to which they are exposed in performing a task and of measures to minimize the danger to themselves or other persons. Electrical shock hazards from the telecommunication network and AC mains are possible with this equipment. To minimize risk to service personnel and users, the system must be connected to an outlet with a third-wire Earth. Service personnel must be alert to the possibility of high leakage currents becoming available on metal system surfaces during power line fault events near network lines. These leakage currents normally safely flow to Protective Earth via the power cord. Therefore, it is mandatory that connection to an earthed outlet is performed first and removed last when cabling to the unit. Specifically, operations requiring the unit to be powered down must have the network connections (exchange lines) removed first. Intrinsic safety Do not install the unit in conditions where there is a danger of electrically ignited explosions. Exposure to sunlight, heat and moisture Do not expose the unit to direct sunlight for long periods. Keep away from excessive heat and moisture. Spare parts and accessories Use only approved spare parts and accessories. The operation of non-approved parts cannot be guaranteed and may even cause damage. DECLARATION OF CONFORMITY Measurement Standard Applied ANSI C63.10:2009 Manufacturer:
Product Description Product Model Part Number Test Laboratories STANDARDS TO WHICH CONFORMITY IS DECLARED Part 15 Specific conditions for 900MHz Title 47 CFR 15.209, 15.249 (a),(e), 15.215, 15.109, 15.203 Invisible Systems Ltd 9 Beetham Rd Milnthorpe Cumbria LA7 7QL U.K 925.78MHz Transceiver designed for low cost solution for wireless application ISL024DB1 250001 Unit E South Orbital Trading Park Hedon Road Hull HU9 1NJ UK T 01482 801801 F 01482 801806 I the undersigned, hereby declare that the equipment specified above conforms to the specified Directive and Standards. Signature Print Name Date Title 2. ISL024DB1 The ISL024DB1 transceiver is a narrowband radio designed for license-free operation in 900MHz ISM band. The ISL024DB1 has a fixed 1mW of output power for use in the USA and Canada 902MHz 928MHz ISM bands. This is a half-duplex wireless data transceiver which is integrated with an ultra speed MCU and a powerful RF chip. A software application is offered so that users can modify the settings of the module. Its slim size, and ultra long transmission distance makes itself the most popular selection of many applications in different fields. 3. Theory of operation 3.1 Network Topologies Topology refers to the shape of a network or the networks layout. How different nodes communicate with each other is determined by the network topology. The ISL024DB1 support a point-to-point and a point-to-multipoint network topology. 3.2 Point-To-Point A point-to-point network consists of only two radios, one configured as a receiver and one configured as a transmitter. Sometimes referred to as a wireless bridge, a point-to-point link replaces a single communications cable. Transmitter Receiver 3.3 Point-to -Multipoint Point-to-multipoint systems have one base station (receiver) that controls all communications with all of the other wireless nodes in the network. This allows for the creation of a wireless network consisting of multiple nodes. In a point-to-multipoint network the receiver would typically be set up as the access point and would be configured to receive data. The other nodes would be set up as transmitters. There is a limit of 60 transmitters that can be configured in a point-to-multipoint network, but all radios would share the same bandwidth over the RF, so as more nodes were added care should be taken when transmitting data to prevent collisions. Transmitter Transmitter Transmitter Transmitter Transmitter Receiver Transmitter 3.4 Other network topologies 3.4.1 Repeater networks Though there is no functionality for a transmitter to automatically forward a message along to another radio, repeater networks can be setup to provide for additional coverage. This example of a repeater network would still be useful for a point-to-multipoint network where some of the transmitters are not in range of the primary access point. In this network topology an ISL024DB1R product is setup as a repeater to act as the primary access point. To cover additional areas, a repeater consisting of two ISL024DB1R can be added to the network. Transmitter Transmitter Transmitter Transmitter Repeater Repeater Transmitter Receiver Transmitter Limitations:
There are some limitations to this setup. The addition of the repeaters requires additional radios which increases the cost of the systems. The repeater setup must be powered sufficiently. The antennas of the transmitter and the receiver in the repeater should be positioned to minimize interference. For best performance the antennas should be placed more than 10ft from each other. There is some additional latency associated with the repeater; this latency is between 200 and 400ms typically 4. Board Level Pin Assignments Board Level Pin Assignments 4 1 3 1 2 1 1 1 0 1 Pins:8-14 9 8 1 2 3 4 5 6 7 Pins: 1-7 Color Pin Signal Assignment Ground Ground 1 wire Data Pulse Input 2 1 2 3 Output VSW switched VDD out switched VDD out 4 Input 5 Input 6 Input Analogue Input 7 Input Pulse Input 1 8 Output TX Out 9 Input 10 Input 11 Input 12 Output VDD 13 Output VSW switched VDD out VSW switched VDD out Ground 14 Pulse Input 1 1 wire Data Pulse Input 2 Appendix I Antennae Data sheets HH-MMCXMSFB 25cm-174 5. Specifications TABLE 1: ISL024DB1 DETAILED SPECIFICATIONS INTERFACES RF Connector OPERATIONAL Network Topologies Security Frequency Band RF Data rate RF Technology Output Power Maximum radiated power (EIRP) Range Line of sight Sensitivity ELECTRICAL/ENVIROMENTAL Supply voltage Current consumption Temperature (Operating) Temperature (storage) PHYSICAL Dimensions Weight CERTIFICATIONS FCC CE ROHS None internal PCB antenna. Point-to-Point, Point-to-Multi Point N/A 925.78MHz 2400 kbps Narrowband 1mW 45.13mV/m measured at 3 meter Outdoor: up to 300m Indoor: up to 30m
-115dBm at 2400kbps RF rate
+3.6 v DC 35mA
-30C to 75C
-50C to 85C 35x50mm 8g FCC ID: ZWZISL024DB1 ANSI C63.10:2009 yes