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 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 ZN-241 Base/Remote Radio Network Product Manual for Installers 5373 Oakbrook Pkwy Norcross, GA 30093
(678) 684-2000 main
(678) 684-2001 fax www.cirronet.com 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 USERS 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 Cirronets 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 2462 2437 2412 1 6 11 Center Frequency (MHz) 2401-2423 2426-2448 2451-2473 802.11 Channel Nominal Occupied BW 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:
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:
The channels in the 2.4 GHz band span from 11 to 26. Only these channels are supported by the ZMN2400. ZigBee Channel Nominal Occupied BW 2422.5-2427.5 2447.5-2452.5 2477.5-2482.5 Center Frequency (MHz) 15 20 26 2425 2450 2480 Approved Antennas 5 dBi Collinear Nearson Antennas Nearson Server
S-151AH-2450S Client
S-151FL-36-AH-2450 Colinear 5 dBi 7"
SMA R/A Swivel Colinear 5 dBi 7"
SMA Swivel Right Angle Straight Hardware Specifications Radio Specifications Operating Band Radio Type 802.15.4 PHY layer Channel Bit Rate Channel Chipping Rate Modulation Filtering Certification Type ETS 300-328 RF power minimum Receiver Sensitivity Link Margin Line of Sight propagation) Adjacent Ch. Rejection offset Spurious Output General Input Voltage 15 volts maximum Current Consumption
(transmit) Operating Temp Range Humidity RF Connector Host Connector Power Connector 2400-2483.5 MHz Direct Sequence (DTS), IEEE 250 Kbps 2 Mcps MSK with Raised Cosine DTS device per FCC 15.247 and
+17 dBm typical, +15 dBm
-98 dBm typical, -95 dBm minimum 110 dB (approximately 3 Km
>39 dB with jammer @ 5 MHz Per FCC 15.247 and ETS 300-328 5.5 volts minimum, 6 volts nominal, 70 mA typical operating, 180 mA peak 95% Non-condensing
-40 C to + 70 C Reverse SMA Male DB-9 (Amp 747840-3) CUI Stack PJ-002A