National Instruments BNC-2095, Руководство по установке

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BNC/TC-2095 Rack-Mount Adapter Installation Guide 10 ni.com
Table 2. BNC/TC-2095 Shield Ground Jumper Configuration
Jumper W2 Configuration Description When to Use a Setting
100
Ω
(factory-default)—
Connects the
BNC/TC-2095 housing
to SCXI chassis ground
through a 100
Ω
resistor,
while minimizing any
potential ground loop
current.
Use this setting when you are using
the SH96-96 cable, and if one of the
following is true:
• You have not rack-mounted the
BNC/TC-2095.
• You have rack-mounted the
BNC/TC-2095, but are unsure
whether the rack and the
BNC/TC-2095 are grounded.
0
Ω
—Connects the
BNC/TC-2095 housing to
SCXI chassis ground.
Use this setting only if the
factory-default setting is inadequate
for noise rejection, you are using the
R9696 cable, and if one of the
following is true:
• You have not rack-mounted the
BNC/TC-2095.
• You have rack-mounted the
BNC/TC-2095 and are sure that
the rack and the BNC/TC-2095
are not grounded.
Open—Disconnects the
BNC/TC-2095 metal
housing from SCXI
chassis ground. Use this setting only if all of the
following are true:
• Factory-default setting was
inadequate for noise rejection.
• You are using either the SH96-96
cable or the R9696 cable.
• You have rack-mounted the
BNC/TC-2095.
• You are sure that the rack and the
BNC/TC-2095 are grounded.
0
Ω
100
Ω
OPEN
4321
W2
0
Ω
100
Ω
OPEN
4321
W2
0
Ω
100
Ω
OPEN
4321
W2