User's Manual
System Start-Up
20 MCPS4080 Operations Manual
2001 Spectrian Corporation. All rights reserved.
4.
If used, verify that the MCPS4080 address is set correctly.
!
WARNING: The RF output of the MCPS4080 should be connected to a 50-ohm
load before DC power is turned on. The load must be capable of dissipating at
least 290 watts average power and 3,750 watts of peak power.
After mechanical and electrical installation tasks are complete, the MCPS4080 is
ready for power-on check.
4.4 Power Up the MCPS4080
☛
Caution: Read and understand all of the following steps before taking any
action.
✎
Note: The MCPS4080 should be powered on and enabled before the RF input
power is applied.
1.
Switch on the DC input power to the MCPS4080. Measure the input
voltage at the bus bar connections at the rear of the unit and verify it is
27VDC. Adjust the power supply if necessary.
Following the power-up self-test, the MCPS4080 AMM
POWER
LED
should be GREEN, indicating that the unit is functional and that in input
voltage is between 24 and 28 VDC. If the
POWER
LED is amber, red, or
does not light, turn off the DC input power and correct the power supply
fault.
The ENABLE switch should be “ON”. The MCPS4080 RF modules will
automatically be ENABLED. All four LEDs on each MCPA module
should be GREEN.
To DISABLE an RF module, set the front panel ENABLE/DISABLE
switch to DISABLE; the
ENABLE
LED will then be AMBER.
2.
Wait 5 minutes for the MCPS4080 to reach a stable operating
temperature. DO NOT apply commercial traffic signal power during this
time.
3.
If the MCPS4080 is connected to a remote operations center via one of
the rear panel interface connections, verify no alarms have been reported.
4.
Verify that all MCPS4080 status LED indicators remain GREEN.
5.
If any LED indicators are AMBER, then RF modules are disabled or
there is a problem, which must be remedied before continuing. Refer to
section 6, Troubleshooting.
☛
Caution: Before applying RF input power to the MCPS4080, verify that the
applied RF input power for a single channel and the sum of all channels is
below the calculated maximum rated RF input.