Installation Manual

Commissioning the IFU
28 GHz SONET OC-3 IFU Installation - R1.0 4-7
7 Sweep the IFU from the far left to the far right. The measured voltage of
the multimeter displays a succession of peak signals as the IFU moves.
Note the approximate position of the IFU when the higher peak occurs
and the corresponding voltage value.
8 Move the IFU to the higher peak position as indicated by the multimeter
display.
9 Tighten the horizontal alignment nut on the IFU mounting bracket.
To commission the far-end IFU:
1 Ensure the far-end IFU transmitter is set to ON.
2 Loosen the four vertical screws on the IFU mounting bracket.
3 While viewing the multimeter, sweep the IFU vertically by pointing the
IFU all the way up and then down. The measured voltage of the
multimeter displays a succession of peak signals as the IFU moves.
Specifically, the signal displays a “small” peak, a relatively higher peak,
and then redisplays the “small” peak. Note the approximate position of
the IFU when the higher peak occurs and the corresponding voltage
value. The peak voltage should be approximately 3 Vdc.
WARNING: Beware! Radio transmitter is ON when the
red light indicator on back side of Invisible Fiber™ unit is
illuminated. Observe all radio frequency energy exposure
and service interruption cautions.
MISE EN GARDE : Attention ! Le poste émetteur est EN
MARCHE lorsque le témoin rouge sur le dos de l’unité
Invisible Fiber
MD
est allumé. Respecter toutes les mises en
garde concernant l’exposition aux radiofréquences et
l’interruption de service.
WARNING – RF EXPOSURE HAZARD: Ensure the
safety of all personnel. Do not stand in front of the
Invisible Fiber™ unit (antenna) in order to avoid possible
harmful radio frequency energy exposure. Serious bodily
injury may result.
MISE EN GARDE – RF EXPOSURE HAZARD :
Assurer la sécurité de tout le personnel. Ne pas rester
debout devant l’unité Invisible Fiber
MD
(l’antenne) afin
d’éviter toute exposition dangereuse aux radiofréquences.
Les lésions corporelles serieux s’ensuivre.