User's Manual
Table Of Contents
- About This Manual
- System Description
- Mobile Equipment System
- Repeater System
- Base Station
- System Installation and Checkout
- User Interface
- Acronyms
- Radio Module Specifications
- General Description
- Functional Specifications
- FCC Items
- Channel Definitions
- Power and Distance
- Photographs
- DSSS Channels and Regulations
- EL Antenna Pattern
- AZ Antenna Pattern
4 Spread Spectrum Radio System User’s Manual
March 2001
on the back of the radio module. The signals are identified in the
following table:
Shielded connections inside the radio encapsulate the LVDS lines so
that radiation is minimized.
Hub The Hub controls the high-speed LVDS links to the radios by way of
FPGAs inside the Hub and the radio modules. The Hub supplies
protected power to the radios as well as protected power to all other
DISPATCH hardware on the mine equipment, such as the CGC and
external Generic Serial Processor (GSP). This eliminates the need for
an external power supply and reduces the amount of input protection
circuitry the non-Hub devices require.
Figure 3 Mobile Equipment Hub
Table 1 Radio Module External Connector
Pin Signal Description
A DATA OUT + LVDS driven from radio +
B DATA OUT − LVDS driven from radio −
C DATA IN − LVDS received from Hub −
D DATA IN + LVDS received from Hub +
E PWR IN
24 V dc received from Hub
*
*Acceptable input range is 8 to 38 volts.
F PWR GND Power ground connected to Hub
SLIP
GPS ANTENNA
CAN A
CAN A [RESERVED] RADIO A
RADIO B
POWER
DIGITAL I/OGSPETHERNET