Meteorcomm LLC 63020 ユーザーズマニュアル
ITCR Locomotive Radio User Guide
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4/30/2013
1.3 Chassis
Locomotive radios are housed in electrically sealed metal cases. The Locomotive
radio is LSI-rack compatible and its height is less than 6xMCUs. It weighs less than 22
lbs.
radio is LSI-rack compatible and its height is less than 6xMCUs. It weighs less than 22
lbs.
All input/output ports are grounded and/or shielded. In addition, best engineering
practices have been employed with respect to internal shielding, unit assembly and
PCB design in an effort to minimize potential sources of unwanted radiated
emissions.
practices have been employed with respect to internal shielding, unit assembly and
PCB design in an effort to minimize potential sources of unwanted radiated
emissions.
1.4 Ports and Ethernet Connectors
The Locomotive radio provides two 8-pole, female, M12, D coded connectors for
Ethernet LAN plus a Maintenance port.
Ethernet LAN plus a Maintenance port.
1.5 Power Connectors
The Locomotive radio provides a MS 3102 A18-4P connector for nominal 74 Vdc
power.
power.
1.6 Antenna Connector
The Locomotive radio is provided with two N-type connectors for the narrowband
RF antennas. One antenna jack is used for the primary receive and transmit antenna
cable. The other is used only for diversity reception.
RF antennas. One antenna jack is used for the primary receive and transmit antenna
cable. The other is used only for diversity reception.
2. Important Information for the User
2.1 Transmitter Warm-Up Period
The Locomotive transmitter uses a temperature compensated crystal oscillator
(TCXO) to achieve frequency accuracy and stability. No warm-up period is required
beyond the built-in radio startup delays.
(TCXO) to achieve frequency accuracy and stability. No warm-up period is required
beyond the built-in radio startup delays.