Motorola SG4-DRT-2X Provozní pokyny stáhnout pdf (Strana 60)

3-32 Bench Setup and Operation

SG4000 Installation and Operation Manual

In a typical installation, the RF modules in Ports 1 and 3 are connected to the 2X redundant

return board in return configuration location 3. The RF modules in Ports 4 and 6 are

connected to the 2X redundant return configuration board in configuration location 2.

7 Ensure that the PIC cable is properly connected to the lid and center power distribution

board in the housing base.

8 Route and connect the fiber service cable.

9 Apply power to the node (see Powering the Node in this section). Allow five to ten seconds

for the system self-diagnosis to complete.

10 Verify that the green LED (ON), located on the top panel of each transmitter, is illuminated

to confirm enable status. Refer to Section 4, “Modules” for fault LED functions.

11 Measure the RF power at the test point on the top of each return path transmitter.

The −20 dB test point is located after the JXP pad location and indicates the level into the

transmitter.

12 Place the proper JXP pad into each transmitter pad facility to achieve the nominal total

power level of −5 dBmV at the test point.

13 Review return path system levels.

The transmitter is configured to drive the laser to the recommended level (+15 dBmV) when

the total combined power at the housing ports connected to the split return board is

approximately (+28 dBmV).

14 Measure the optical power level at the DC test point using a multimeter.

The scaled voltage at this test point is 1.0 V/mW.

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Motorola SG4-DRT-2X Provozní pokyny Strana 60