User Manual

MDS 05-4055A01, Rev. A MDS entraNET 900 System Guide (Preliminary) 129
Data Rate: 1200–115,200 bps
asynchronous
Data Latency: < 10 ms typical
PORTS (Remote):
Ethernet:
Interface Connectors: RJ-45 Standard
Data Rate: 10BaseT
COM1, COM2:
Signaling Standard: EIA-232/V.24
Interface Connectors: DB-9
Interface: COM1: DCE / COM2: DTE
Data Rate: 1200–115,200 bps
asynchronous
Data Latency: < 10 ms typical
PROTOCOLS: • CSMA/CA Wireless Protocol with Collision Avoid-
ance (802.11)
• IEEE 802.11 CSMA/CD (Wireless)
• IEEE 802.3 (Ethernet)
• IP/Ethernet (ICMP, UDP, TCP, ARP)
• Clear-channel mode for serial async multidrop
protocols including: Modbus, DNP.3, Bisync,
BSAP, DF1, TotalFlow, Poll Select
RADIO CHARACTERISTICS
GENERAL:
Frequency Range: 902–928 MHz ISM Band
Frequency Hopping Range: Ten user-configurable 2.5 MHz-wide zones,
each containing 8 frequencies
Hop Pattern: Based on network name
Frequency Stability: 20 ppm
TRANSMITTER:
Power Output
(at antenna
connector): 0.1 to 1.0 watt (+20 dBm to +30 dBm) ±1.0 dB,
set by user
Duty Cycle: Continuous
Modulation Type: Binary CPFSK
Output Impedance: 50 Ohms
Spurious: –67 dBc
Occupied Bandwidth: 200 kHz
RECEIVER:
Type: Double conversion superheterodyne
Sensitivity: –108 dBm @ 106 kbps < 1x10
-
6
BER
Intermodulation: 59 dB Minimum (EIA)