2 orType 4ports as describedin GR-1089-CORE, Issue 4) and require isolation
from the exposed OSP cabling. The addition of primary protectors is not
sufficient protection in order to connect these interfaces metallically to OSP
wiring.
CAUTION: For routers with AC power supplies, use an external surge
protective device (SPD) at the AC power source.
Environmental Requirements and Specifications for an ACX5000 Router
The router must be installed in a rack or cabinet. It must be housed in a dry, clean,
well-ventilated, and temperature-controlled environment.
Follow these environmental guidelines:
•
The site must be as dust-free as possible, because dust can clog air intake vents and
filters, reducing the efficiency of the router cooling system.
•
Maintain ambient airflow for normal router operation. If the airflow is blocked or
restricted, or if the intake air is too warm, the router might overheat, leading to the
router temperature monitor shutting down the device to protect the hardware
components.
Table 21 on page 48 provides the required environmental conditions for normal router
operation.
Table 21: ACX5000 Router Environmental Tolerances
ToleranceDescription
No performance degradation to 6,562 feet (2000 meters)Altitude
Normal operation ensured in relative humidity range of 5% through 90%,
noncondensing
•
Short-term operation ensured in relative humidity range of 5% through 93%,
noncondensing
NOTE: As defined in NEBS GR-63-CORE, Issue 3, short-term events can be
up to 96 hours in duration but not more than 15 days per year.
Relative humidity
•
Normal operation ensured in temperature range of 32° F through 104° F (0° C
through 40° C)
•
Non-operating storage temperature in shipping container: –40° F through
158° F (–40° C through 70° C)
Temperature
Designed tocomplywith Zone 4 earthquakerequirementsper NEBS GR-63-CORE,
Issue 3.
Seismic
Copyright © 2015, Juniper Networks, Inc.48
ACX5048 and ACX5096 Universal Access Router
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