1508685 Rev D CHP Max Element Management Modules CHP-CMM, CMM-1, SMM, and SMM-1 6-9
Serial Peripheral Interface Bus
The CMM sends the requests through the chassis SPI bus to the application modules and
power supplies. The polled modules return requested information and alarms through the
SPI bus to the CMM or SMM, which sends it to the Craft Management Software.
RS-485 between CMM and SMM
To monitor up to 10 chassis of CHP Max modules with an SMM, install an SMM module in 1
chassis and 1 CMM in each of the remaining 9 chassis in the monitored site. The SMM
receives requests for information from the system management software and routes those
requests through the RS-485 port to the appropriate CMM. The CMM then routes the request
to the appropriate application module.
DC Power
DC voltages from the power supply module(s) enter the CMM and SMM through the multi-pin
DC/Communications connector.
CHP Max Craft Management Software
CHP Max Craft Management Software provides local access to the CHP Max5000 chassis using
a standard serial interface cable or a USB to RS-232 (P/N CHP-RS232-USB) cable between a
mobile computer and the chassis' CMM. With CHP Max Craft Management Software installed
on a computer, you may monitor the status of any module installed in a CHP Max5000
chassis.
The Craft Management Software allows you to monitor the following parameters:
■ Communication status of all modules installed in the chassis
■ Alarm thresholds and history during a management session
■ Power supply voltages (12, 5, 3.3, –5VDC), fan currents of the two fans in the power
supply, and internal temperature of the power supply
■ Fan currents of each of the eight fans in chassis
■ Transmitter laser bias current, optical output power, laser temperature and status,
internal temperature, and RF input status
■ Receiver optical input power, RF attenuation, and internal temperature
■ EDFA input power, output power, gain, and internal temperature
■ RF amplifier input status, gain, and internal temperature
CHP Max Craft Management Software displays data reported by firmware embedded in
hardware modules; the Craft terminal does not make measurements.
For remote and comprehensive network management tools, contact your ARRIS
representative.
Note Craft Management Software allows the operator to lock/unlock local switch
and manual control to prevent unauthorized use of front panel buttons. However,
for safety reasons, when an unlocked front panel button is used to disable the
transmitter's laser output, it cannot be reactivated by Craft Management Software
or by using SNMP via the SMM until the button is physically enabled.
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