1-12 GENERAL MDS 05-2415A01, Rev. A
Remote Maintenance Module Continued
When Mode 1 (Local Diagnostics) is enabled, the following parameters are available:
• RSSI
• Forward and reflected transmit power
• VSWR
• Transceiver internal ambient temperature
• Phase lock loop (PLL) lock condition
• Primary power and internally regulated voltages
This information is available locally through the HHT or a PC running MDS Remote
Diagnostic software (P/N 06-1972A01)
In Mode 2: Advanced Diagnostics mode, the diagnostics information available locally can
also be retrieved over-the-air through an MDS 4100 Series Master Station. The results are
displayed on a personal computer running MDS 2000 Diagnostics and Control System
software.
Mode 3: Remote Maintenance provides the highest level of diagnostics capability. When
Remote Maintenance is enabled, all of the above features are available plus local or over-the-
air control of the following parameters:
• RF Power Output Setting
• Frequency Offset
• Modem Data Deviation
Certain hardware elements must be present in the Remote and Master Stations for the Remote
Maintenance feature to be enabled. Also, the transceiver must be properly programmed at the
factory, or in the field using the HHT or a PC. If you ordered your radio system with Remote
Maintenance capability, all of these elements will have been installed and tested at the
factory.
If Remote Maintenance is being added to the system, refer to the instructions included with
the upgrade kit for detailed installation procedures (Publication Number 05-2104A01).
Consult the factory if you have questions regarding the capabilities of your existing system.
When using Remote Maintenance over the radio link, MDS 2000 Diagnostics and Control
Software is required. Refer to the instructions included with the software for detailed
installation procedures (Publication Number 05-1919A01).
Hand-Held Terminal Kit (External)—P/N 02-1501A01
The Hand-Held Terminal (HHT) allows the service technician to make certain key
performance checks on the transceiver without removing the radio from its mounting
position, and without the need for additional test equipment. In addition, the user can
program the receive and transmit frequencies in the field, as well as other parameters.
Refer to Chapter 3 for information on connecting and using the HHT.
RS-232 to RS-422 Converter Assembly—P/N 01-2358A01
An optional RS-232 to RS-422 adapter plug (P/N 01-2358A01) is available to allow direct
connection of an RS-422 circuit to the
INTERFACE connector of a radio configured for RS-232
operation. An RS-422 connection may be required if the length of the interface cable exceeds
50 feet (15.24 meters).
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