User's Manual

32 MDS iNet 900 Installation Guide MDS 05-2873A01, Rev. A
DRAFT 6—8/29/01
Modulation Type: Binary CPFSK
Output Impedance: 50 Ohms
Spurious: –60 dBc
Harmonics: –80 dBc
Occupied Bandwidth: 312.5 kHz
RECEIVER:
Type: Double conversion superheterodyne
Sensitivity: –90 dBm @ 512 kbps < 1x10
-
6
BER
–100 dBm @ 256 kbps < 1x10
-
6
BER
Intermodulation: 59 dB minimum (EIA)
Desensitization: 75 dB
Spurious: 70 dB minimum
Interference Ratio
(BER degraded by 10
-1
): Co-channel:–10 dB
Adjacent channel:+30 dB
Two channels away:+50 dB
Three channels away:+60 dB
Time Required to Synchronize
with Access Point Radio: Less than 13 seconds (typical)
9.2 Data Interface Connectors—
LAN, COM1 & DATA Ports
Three data interface connectors are provided on the face of the trans-
ceiver. The first, the LAN Port, is an RJ-45 connector. The balance are
two DB-9 interface connectors which use the RS-232 (EIA-232) sig-
naling standard. Note that the connector for
COM1 Port is DCE (Female
DB-9) and the
COM2 Port is DTE (male DB-9).
The iNet 900 transceiver meets U.S.A.’s FCC Part 15, Class A limits
when used with shielded data cables.
LAN (Local Area Network) Port—RJ-45 Ethernet Interface
The LAN Port is used to connect the radio to an Ethernet network. The
iNet transceiver will provide a data link to an Internet Protocol-based
(IP) data network through the radio network’s Access Point station.
Each radio transceiver in the network must have a unique IP address for
the network to function properly. The
LAN port only supports the
Internet Protocol (IP).
CAUTION
RADIO FREQUENCY
INTERFERENCE
POTENTIAL