Allied Telesis AT-9816GB Посібник зі швидкого встановлення - Сторінка 6
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6
8.
Apply DC power to the switch (for DC models)
Read the Safety and Statutory Information booklet before connecting a DC
power supply. A copy of this booklet is included with each switch. It is also
included on the Documentation and Tools CD-ROM, or can be
downloaded from www.alliedtelesyn.co.nz/support/at9800/.
Only trained and qualified personnel should connect a DC power supply. Due
to exposed terminals, DC powered switches should only be installed in
Restricted Access Areas.
DC supply cable specifications (one cable is required for each PSU):
•
Number of wires (cores): 3
•
Minimum size: 2.1mm
•
Minimum cable rating: 600V, 90 degrees Celsius
DC power supply specifications:
•
48 V DC (40-60 VDC is acceptable)
•
Either positive grounded or negative grounded
Circuit protection:
•
Use a 10 Amp circuit breaker
Ensure the supply cable is not live.
a) Strip the supply cable wires to expose 8mm (0.31in) of bare conductor
b) At the switch, connect the ground wire to the ground terminal. (The
terminals can be identified by the diagram on the switch's rear panel.)
Tighten the terminal to between 0.6 and 0.8 Nm (0.041 to 0.055 pound force
per foot).
c) At the switch, connect the positive feed to the + (positive) terminal and
the negative feed to the - (negative) terminal. Tighten the terminal to
between 0.6 and 0.8 Nm (0.041 to 0.055 pound force per foot).
d) Ensure that there are no exposed conductor strands.
e) Secure the supply cable (to the rack framework or similar object) so that
the connections are isolated from any forces applied to the cable.
f)
Ensure that the circuit breaker is in the OFF position.
g) Connect the supply cable wires to the circuit breaker.
h) Energise the circuit breaker.
The Fault LED should flash for approximately 10 seconds as the switch runs
internal tests. If the LED continues to flash or remains lit, refer to the AT-9800
Series Hardware Reference for troubleshooting information.
9.
Check that the Power LED on the switch's front panel lights green
If the LED fails to light, refer to the AT-9800 Series Hardware Reference for
troubleshooting information.
2
(14 AWG)
AT-9800 Series
C613-04038-01 REV F