Installation Instructions

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2.1 - 2.2
Connect the NM3710 to the monitor input CL cable (from MCU). Use keypad CHANGE
OVER to activate the second transmitter. Read DDM and SDM.
2.3 - 2.4
Connect the NM3710 to the monitor input DS cable (from MCU). Use keypad CHANGE
OVER to activate the second transmitter. Read DDM and SDM.
2.5 - 2.6
Connect the NM3710 to the monitor input NF cable (from NF antenna). Use keypad
CHANGE OVER to activate the second transmitter. Read DDM and SDM.
2.7 - 2.8
Connect the NM3710 to the monitor input CLR cable (from MCU). Use keypad CHANGE
OVER to activate the second transmitter. Read DDM and SDM.
3.1 - 3.3
Connect the oscilloscope to BNC test points (LPA units) at each relevant Transmitter unit
and check that normal waveforms exist.
4.1 - 4.7
Record all relevant SBO attenuator values obtained from Flight Commissioning Data.
4.8 - 4.11
Record relevant phaser settings (scale divisions). (4.9 is ADU SBO attenuator setting for
NM3522 only.)
5.1 - 5.24
Fill in phase and amplitude of signals from the receiving end of the monitor cables refer-
enced to the input phase/amplitude of the antenna cables. Normalise to A1/M1.
Fill in antenna return loss data in column
Return loss .
6.1 - 6.9
Check that all remote control functions are OK.
7.1 - 7.6
Check that all Slave panel functions are OK.
8.1 - 8.2
Check that the 90° cable stub and 3 pcs different extension cards exist.
9.1 - 9.24
Transmitter shall be radiating. Select ILS\Measurements\Monitor II. Disconnect one
antenna at a time. Read values (Mon 1,2) for DC LOOP Ø,1,2,3, and record in table. For
each disconnected antenna check that one DC LOOP channel for Mon 1 and 2 is in Alarm.
10.1
Tx 1 operating normal. Make a Station Report to printer or file. Ref. Operator Manual para.
5.4.2.
10.2
Tx 2 operating normal. Make a Station Report to printer or file. Ref. Operator Manual para.
5.4.2.