Zhone EtherXtend 3300 Series, Руководство пользователя

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Installation Preparation
36
EtherXtend User’s Guide
Install the system in reasonable proximity to all equipment with which it will
connect. Ensure that proper cable grades are used for all system and network
connections. For best results, use the cables and connectors recommended in
this document.
Environmental specifications
Table 8 describes the EtherXtend chassis environmental specifications and
shows the EtherXtend dimensions.
Power requirements and specifications
–48V DC power sources to be connected to the EtherXtend system. The
Return (+) terminals are common.
Table 9 describes the EtherXtend power specifications.
Table 8: EtherXtend environmental specifications
Description Specification
Weight 3.35 lbs. (1.52 kg) fully loaded
Operating temperature
0
0
C to +40
0
C (32
0
F to +104
0
F).
Storage temperature
0
0
C to +40
0
C (32
0
F to +104
0
F)
Operating relative
humidity 5% to 95% noncondensing
Storage relative
humidity Up to 95% noncondensing
Altitude Operating altitude: Up to 4,000 m (13,123 ft.)
Airflow EtherXtend (working at front of unit): Left to right
Table 9: EtherXtend power supply specifications
Description Specification
Rated voltage -41.75V to -60.0V DC
Maximum power
consumption EtherXtend: 4-port watts, 19.4 watts
EtherXtend 8-port watts, 19.4 watts
DC-input cable
AWG 18 (5.27 mm
2
) maximum