MODEL 8900 SERIES GEONET WIRELESS DATA HOSTING SYSTEM
| SPECIFICATIONS |
27
APPENDIX A.
SPECIFICATIONS
A.1 SUPERVISOR SPECIFICATIONS
10:
TABLE 10:
Supervisor Specifications
A.2 NODE SPECIFICATIONS
11:
TABLE 11:
Node Specifications
A.3 NETWORK SPECIFICATIONS
12:
TABLE 12:
Network Specifications
Data Memory
32 MB
Storage Capacity
> 1.04 M arrays
Communication Type
USB, RS-232
Communication Speed
115.2 kBits/second
Communication Parameters
8,N,1 (data bits, parity, stop bits)
Communication Protocol
Modbus RTU
Scan Interval
10-1440 minutes
USB Driver (not applicable to RS-232 version)
FTDI
Power Supply
Battery pack, or 9
‑
24V DC external (Cellular Gateway Supervisor)
D cell, alkaline or lithium (2x), or 12V external (non
‑
cellular Supervisor)
Operating Time
Please contact GEOKON
Operating Temperature
−40 °C to +85 °C
(L
×
W
×
H)
160 × 260 × 91 mm (Cellular G Mesh Supervisor)
120 × 122 × 91 mm (Mesh Supervisor)
Data Memory
32 MB
Storage Capacity
Varies by model
Trueness
0.082 Hz
Frequency Precision
±0.146 Hz (99% CI)
Frequency Resolution
±0.002 Hz
Thermistor Accuracy
External thermistor: ±0.5 °C
On-board sensor: ±0.4 °C
Thermistor Resolution
External thermistor: 0.032 °C
On-board sensor: 0.1 °C
Scan Interval
10-1440 minutes
Power Supply
D cell, alkaline or lithium (2x), or 12V external
Operating Temperature
−40 °C to +85 °C
VW Excitation Peak Current
25 mA (max)
VW Frequency Range
400 Hz - 5000 Hz
Sweep/Read Duration per Channel
< 500 mS
Battery Life
Refer to Section 4.2
Dimensions (L×W×H)
120 × 122 × 91 mm (single-channel node)
160 × 260 × 91 mm (four-channel node)
180 × 280 × 101 mm (eight-channel node)
Vibrating wire (VW) channel
lightning protection
Gas discharge tube
High-speed surge protector
Transient voltage suppression diode
Thermistor (TH) channel
Gas discharge tube
Inductor (lower resistance than high-speed surge protectors)
Transient voltage suppression diode
Network
Value
Topology
Star/Mesh/Cluster Tree (Automatic)
Radio Technology
FHSS
Radio Frequency, ISM Band
902-928 MHz
Channels
12
Range (Line of Sight)
Up to 60 km (15 km x 4 hops)
Transmit Power
1 W
Receiver Sensitivity
−
106 dBm
Antenna (Half
‑
Wave Dipole)
2.1 dBi
Содержание GeoNet 8900 Series
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