Extron electronics DTP2 T/R 211, Руководство пользователя

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DTP2 T/R 211 • Reference Information 32
Internal Settings
ATTENTION:
• Use electrostatic discharge (ESD) precautions (be electrically grounded) when
making connections.
•
Prenez des précautions contre les décharges électrostatiques (soyez
électriquement relié à la terre) lorsque vous effectuez des connexions.
• Avoid ground potential differences between the transmitter and receiver
installation sites, which can lead to
equipment damage or a missing or
unstable picture. If a potential difference cannot be avoided, remove the ground
connection between the units and locally power both units.
• Évitez les différences de potentiel de mise à la terre entre les sites d’installation
d’émetteur et de récepteur de commutation, qui pourraient endommager
l’équipement ou rendre l’image invisible ou irrégulière. Si une différence de
potentiel ne peut être évitée, enlevez la connexion de mise à la terre entre les
unités et alimentez les deux unités localement.
There are two internal jumpers used to configure the DTP2 ground lift and remote power.
The jumpers have the following numbering scheme and function:
Jumper Function Jumper
Pins 1 and 2
Jumper
Pins 2 and 3
Ground Lift:
• Rx — J2
• Tx — J9
•
Closed
—
Ground is not
lifted (default)
• Open —
Ground is lifted.
Closed
1
3
Open
1
3
48 VDC Remote
Power:
• Rx — J3
• Tx — J12
• On — Remote
power is
distributed
(default).
• Off — Remote
power is
disabled.
On
1
3
Off
1
3
NOTES:
•
If the ground jumper is open, a DTP2 211 unit cannot remotely power the other
unit, because of ground potential differences. Each unit requires a local power
supply.
• If the 48 VDC remote power jumper is off, DTP2 211 unit cannot remotely power
the other unit. Each unit requires a local power supply.