Sensys Networks FLEX-AP FlexAP User Manual AP240 Access Point

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Document ID	3390533
Application ID	D8L6F8YV52D/EZQkqvJ0Fg==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	21.76kB (271946 bits)
Date Submitted	2017-05-15 00:00:00
Date Available	2017-05-15 00:00:00
Creation Date	2017-05-04 15:08:49
Producing Software	Adobe PDF Library 10.0.1
Document Lastmod	2017-05-04 15:09:19
Document Title	AP240 Access Point
Document Creator	Adobe InDesign CS6 (Windows)
Document Author:	Zenobia Redeaux

FlexAP
The Sensys Networks VDS240 Wireless Vehicle Detection System
uses pavement-mounted magnetometer or MicroRadar® sensors
to detect the presence and movement of vehicles and bicycles. The
magnetometer and MicroRadar® sensors are wireless, transmitting their
detection data in real-time via low-power radio technology to a nearby
Sensys Networks access point that then relays the data to one or more
local or remote traffic management controllers and systems.
The Sensys Networks FlexAP is an intelligent device operating under
the Linux operating system that maintains two-way wireless links to
a vehicle detection system’s sensors and repeaters, establishes overall
time synchronization, transmits configuration commands and message
acknowledgements, and receives and processes data from the sensors.
The FlexAP then relays the sensor detection data to a roadside traffic
controller or remote server, traffic management system, or other vehicle
detection application.
The FlexAP is the second generation of Sensys Networks access points
and replaces the AP240. The FlexAP includes a higher sensitivity
radio for more robust wireless links and more processing and memory
capacity for additional applications. The FlexAP is housed in a robust
enclosure that provides excellent protection against the environment.
Types of FlexAPs. A FlexAP uses a single cable to support
10/100Base-T Ethernet communications and, in some versions,
serial communications to the contact closure card that furnishes the
interface to standard traffic controllers.
FLEX-AP-S, FLEX-AP-ES
• RJ45 port supports serial interface to Contact Closure card
(CC card) for relay of vehicle detection output via the EX cards or
FlexConnect SDLC link
• Supports Ethernet interface for field configuration (via Sensys
Networks AccessBox)
• Statistics processing of sensor detection data only in FLEX-AP-ES
• 48VDC power input from CC card via RJ45 port
FLEX-AP-D, FLEX-AP-ED
• RJ45 port supports Power-over-Ethernet (PoE) interface for relay
of detection data directly to controller
• Supports field configuration over the Ethernet interface
• Statistics processing of sensor detection data only in FLEX-AP-ED
• 48VDC power input from PoE interface (adapter required)
Functions / Features
Sensys Networks radio communications
• To/from wireless sensors
• To/from repeaters
Relay of sensor data
• Via contact closure signals, FlexConnect SDLC link, or Ethernet
interface to traffic controller
Functions / Features (cont.)
Relay of sensor data (cont.)
• Via IP connectivity (wired or wireless) to traffic
management systems, upstream servers, etc.
Processing of sensor data
• Per-lane or per-vehicle data
• Data binning over selectable time intervals
• Data filtering (e.g., adaptive holdover)
Storage of sensor data
• Data buffering (event caching)
• Data storage (processed data)
Master timebase for all supported wireless sensors
• Common clock for sensor timestamps
• Can be synchronized to NIST timing signals
Radio signal quality measurements
• Receive Signal Strength Indicator (RSSI, in dBm)
• Link Quality Index (LQI, figure of merit 40-99)
Firmware upgrades
• Upgrades via IP connectivity or via local PC connection
• Delivers upgrades to all other Sensys Networks devices
Simple installation
• Any roadside location that provides adequate signal
coverage to sensors/repeaters
• No special requirements regarding setback or mounting
stability
Enclosure
• Robust protection against outside environment
• Cable connects straight to board, removing one bulkhead
connection on the outside of enclosure
Software Compatibility
• Requires TrafficDOT software 2.12.7 or later
1608 4th Street Suite 200 Berkeley CA 94710 | www.sensysnetworks.com/resources| P 510.548.4620 F 510.548.8264
FlexAP
Functional Specifications
• to/from sensors via 802.15.4 PHY radio
• to/from repeaters via 802.15.4 PHY radio
• to/from configuration device (PC) via
interfaces
IP connectivity
per-lane data
processing
per-vehicle data
processing
memory
resources
processor
TCP/IP over 10/100Base-T Ethernet
• to roadside traffic controller via contact
closure, SDLC link, or Ethernet interface
• to/from central network management/
data collection facilities via TCP/IP
• Telnet, FTP, HTTP, PPP, PPTP, optional
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
encryption over tunnel
10/100Base-T via RJ45 connector
counts (volume)
occupancy
average and median speeds
binned speeds and vehicle lengths over
selectable time intervals
initial vehicle detect time
gap
speed
length
• via PoE cable to RJ45 connector
• 36-58 VDC (48 VDC nominal)
power
consumption
• FLEX-AP-S, -D, -ED, -ES: 2 W
dimensions
• 9” x 4.8” x 3.8”/22.8 cm x 12.1 cm x 9.6 cm
weight
• FLEX-AP-S, -D, -ED, -ES: 1.6 lbs/0.7 kg
• mounting kit: add’l 1.2 lbs/0.5 kg
environmental
• designed for weatherproof, outdoor operation
operating temp
Order
Codes
400 MHz ARM9 processor
Linux 3.14 operating system
256 MB Flash
128 MB SDRAM
FLEX-AP-D
physical layer
protocol
IEEE 802.15.4 PHY
modulation
Direct Sequence Spread Spectrum Offset
Quadrature Phase-Shift Keying (DSSS
O-QPSK)
transmit/receive bit
rate
250 kbps
frequency band
2400 to 2483.5 MHz (ISM unlicensed band)
frequency channels
16
channel bandwidth
2 MHz
antenna type
microstrip patch antenna (side with Toward
Sensors label)
antenna field of
view
±60° (azimuth & elevation)
nominal output
power
+3 dBm
30 - 1000 MHz: < -36 dBm
1 - 12.75 GHz: < -30 dBm
1.8 - 1.9 GHz: < -47 dBm
5.15 - 5.3 GHz: < -47 dBm
typical receive
sensitivity
-101 dBm (PER ≤ 1%)
saturation
(max input level)
≥ 10 dBm
-40ºF to +176ºF/-40ºC to +80ºC
Types of Access Points
FLEX-AP-S
Sensys NanoPower (SNP) protocol (TDMA)
spurious emissions
input voltage
~500 kB for event caching
~1 MB for processed data storage
over-the-air protocol
•
•
•
•
Power, Physical, & Environmental
stats
processing
capability
FLEX-AP-ES
FLEX-AP-ED
●
detection data interfaces
contact
closure
SDLC
10/100 Base-T
●
●
●
●
●
●
●
●
●
Compliance
• FCC: 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.
• Note: Any changes or modifications not expressly
approved by the party responsible for compliance
could void the user’s authority to operate the
equipment.
EMC
• IC: This device complies with Industry Canada
licence-exempt RSS standard(s). Operation is subject
to the following two conditions: (1) this device may
not cause interference, and (2) this device must
accept any interference, including interference that
may cause undesired operation of the device.
• IC : Le présent appareil est conforme aux CNR
d’Industrie Canada applicables aux appareils radio
exempts de licence. L’exploitation est autorisée
aux deux conditions suivantes : (1) l’appareil ne
doit pas produire de brouillage, et (2) l’utilisateur
de l’appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
Local Distributor
Sensys Networks and the Sensys Networks logo are trademarks of Sensys Networks, Inc. All other trademarks are the property of their respective owners.
Information contained herein is believed to be reliable, but Sensys Networks makes no warranties as to its accuracy or completeness.
Copyright © 2017 Sensys Networks, Inc. • ALL RIGHTS RESERVED • CONTENTS SUBJECT TO CHANGE

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