Murata Electronics North America ZN241 NETWORK RADIO LINK User Manual USERS MANUAL

Murata Electronics North America NETWORK RADIO LINK USERS MANUAL

USERS MANUAL

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15.247 Certification Test Report FCC ID: HSW-ZN241 FCC Rule Part: 15.247 ACS Report Number: 05-0173-15C Manufacturer: Cirronet Inc. Model: ZN241 Manual / Installation Guide
5373 Oakbrook Pkwy Norcross, GA 30093 (678) 684-2000 main (678) 684-2001 fax www.cirronet.com ZN-241 Base/Remote Radio Network Product Manual for Installers
Important Regulatory Information Cirronet Product FCC ID: HSW-ZN241 IC 4492A-ZN241 Note: This unit has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their expense. Information to user/installer regarding FCC s Maximum Permissible Exposure (MPE) limits. NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT. FCC s MPE Requirements Information to user/installer regarding FCC s Maximum Permissible Exposure (MPE) limits. Notice to users/installers using the following mobile antennas, with Cirronet RF products: ZN241 5 dBi and 2 dBi Omni Antennas The field strength radiated by any one of these antennas, when connected to Cirronet RF products, may exceed FCC mandated RF exposure limits. FCC rules require professional installation of these antennas in such a way that the general public will not be closer than 20 cm from the radiating aperture of any of these antennas. End users of these systems must also be informed that RF exposure limits may be exceeded if personnel come closer than 20 cm to the apertures of any of these antennas. Getting Started The ZN241 Radio network is designed for Point of Service (POS) transactions. The network consists of a server (ZN241-S) and many clients (ZN241-C). Both models use the same hardware with different software. One option for the server is two antenna outputs provided by a 2-way splitter with each output 3 dBm lower in RF power. The ZN241 utilizes a Zigbee standard hardware module. The software is Cirronet’s networking POS system. The ZN241 has the following connections: The antenna connector (RF) is located on the left side of the case, as shown above. The RS232 and 6 Volt DC connection is on the right side of the case.
Figure 1 -- ZN241/Hypercom System Block Diagram Frequency Selection The ZMN2400 is not frequency agile during run-time, but it can select an unoccupied portion of the spectrum at startup from among the choices programmed into the Channel Mask. We believe the most likely source of interference would be from nearby 802.11b access points, which typically default to one of the following three channels: 802.11 Channel Center Frequency (MHz) Nominal Occupied BW 1 2412 2401-2423 6 2437 2426-2448 11 2462 2451-2473 ZigBee defines channel centers from 2405 to 2480 with 5 MHz spacing. Our strategy is to balance between keeping the number of possible channels as few as possible (to minimize variation from power-up to power-up) and to avoid possible 802.11b interferers. With this in mind, we can select three channels, one at 2480, completely above the three most common 802.11b channels, and two at the nulls between channels at 2425 and 2480: ZigBee Channel Center Frequency (MHz) Nominal Occupied BW 15 2425 2422.5-2427.5 20 2450 2447.5-2452.5 26 2480 2477.5-2482.5 The channels in the 2.4 GHz band span from 11 to 26. Only these channels are supported by the ZMN2400.
Hardware Specifications Radio Specifications Operating Band 2400-2483.5 MHz Radio Type Direct Sequence (DTS), IEEE 802.15.4 PHY layer Channel Bit Rate 250 Kbps Channel Chipping Rate 2 Mcps Modulation MSK with Raised Cosine Filtering Certification Type DTS device per FCC 15.247 and ETS 300-328 RF power +17 dBm typical, +15 dBm minimum Receiver Sensitivity -98 dBm typical, -95 dBm minimum Link Margin 110 dB (approximately 3 Km Line of Sight propagation) Adjacent Ch. Rejection >39 dB with jammer @ 5 MHz offset Spurious Output Per FCC 15.247 and ETS 300-328 General Input Voltage 5.5 volts minimum, 6 volts nominal, 15 volts maximum Current Consumption 70 mA typical operating, 180 mA peak (transmit) Operating Temp Range -40 C to + 70 C Humidity 95% Non-condensing RF Connector Reverse SMA Host Connector Male DB-9 (Amp 747840-3) Power Connector CUI Stack PJ-002A Approved Antennas 5 dBi Collinear – Nearson Antennas Colinear Nearson Server <<<<< S-151AH-2450S Client>>>>>S-151FL-36-AH-2450 Colinear 5 dBi 5 dBi 7" 7" SMA SMA R/A Swivel Right Angle Straight Swivel

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