WSDA
®
-Base-104
®
USB Base Station
User Manual
Specifications
54
9.2
Operating Specifications
Parameter
Specifications
General
Connectivity
USB 2.0 virtual serial communication @ 921,600 bps
Sampling
Supported node sampling
modes
Synchronized, low duty cycle, continuous, periodic burst,
event-triggered, and datalogging
Synchronization beacon
interval
1 Hz beacon provides ± 32 μsec node-to-node synchronization
Synchronization beacon
stability
± 3 ppm
Network capacity
Up to 2000 nodes per RF channel (and per gateway) depending
on the number of active channels and sampling settings.
Refer to the system bandwidth calculator:
http://www.microstrain.com/configure-your-system
Operating Parameters
Wireless communication range
Outdoor/line-of-sight: 2 km( ideal)
*
, 800 m (typical)
**
Indoor/obstructions: 50 m (typical)
**
Radio frequency (RF)
transceiver carrier
2.405 to 2.470 GHz direct sequence spread spectrum over 14
channels, license-free worldwide, radiated power
programmable from 0 dBm (1 mW) to 16 dBm (39 mW); (low
power option available for use outside the U.S.A.- limited to 10
dBm (10 mW)
RF communication protocol
IEEE 802.15.4
Power consumption
Idle: 45.7 mA; Eight active node channels operating at 256 Hz
low duty cycle: 65.6 mA
Operating temperature
-40 °C to + 85 °C (electronics)
-30 °C to +70 °C (enclosure/antenna)
Physical Specifications
Dimensions
88 mm x 70 mm x 20 mm without antenna
Weight
123 grams
Enclosure material
Black anodized aluminum
Integration
Connectors
Micro-USB
Communications cable
USB standard to USB micro-B
(3 foot cable included in starter kit)
Compatible sensor nodes
All LXRS
®
sensor nodes, all legacy 2.4 GHz nodes
Firmware
Firmware upgradeable through software interface
Software
SensorCloud™,SensorConnect™, Node Commander
®
,
WSDA
®
Data Downloader, Live Connect
™
, Windows
XP/Vista/7 compatible
Software development kit (SDK)
Data communications protocol available with EEPROM maps
and sample code (OS and computing platform independent)
http://www.microstrain.com/wireless/sdk
Regulatory compliance
FCC (U.S.), IC (Canada), CE, ROHS
*Measured with antennas elevated, no obstructions, and no RF interferers.
**Actual range varies depending on conditions such as obstructions, RF interference, antenna height, & antenna orientation.