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

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Document ID	568677
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Document Description	USERS MANUAL
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Date Submitted	2005-08-05 00:00:00
Date Available	2005-08-05 00:00:00
Creation Date	2005-07-29 11:30:11
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Document Title	USERS MANUAL
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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 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:
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.
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.
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
2412
2401-2423
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
Approved Antennas
5 dBi Collinear – Nearson Antennas
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
Power Connector
Server
<<<<<
S-151AH-2450S
250 Kbps
2 Mcps
MSK with Raised Cosine
DTS device per FCC 15.247 and
Client
>>>>>
S-151FL-36-AH-2450
+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
General
Input Voltage
15 volts maximum
Current Consumption
(transmit)
Operating Temp Range
Humidity
RF Connector
Host Connector
Nearson
2400-2483.5 MHz
Direct Sequence (DTS), IEEE
5.5 volts minimum, 6 volts nominal,
70 mA typical operating, 180 mA peak
-40 C to + 70 C
95% Non-condensing
Reverse SMA
Male DB-9 (Amp 747840-3)
CUI Stack PJ-002A
Colinear
5 dBi
7"
SMA
R/A
Swivel
Colinear
5 dBi
7"
SMA
Right Angle Straight
Swivel

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