QSC Audio QE 16/0 - Manual (Page 4)

Specifications:
•
Industry standards: Complies with IEEE 802.3, 10
BASE
T standard, FCC Class A, CE
Mark.
• Interface: 16 station ports for clients, servers, or other hubs. A designated
Uplink port allows cascading to another hub.
• Uplink port: Requires UTP cable (Category 3, 4, or 5). Segment length can be up
to 100 meters. When
cascading using this port, the maximum segment
length is 5 meters.
• Power supply Internally auto-sensing from 90 VAC to 250 VAC. Power consump-
tion is 50 W maximum.
• Environment: Operating temperature: 0
°
C to 50
°
C; (Storage temperature: -20
°
C to
70
°
C); Operating humidity: 10% to 80% RH; (Storage humidity: 5% to
91% RH). [RH = Relative Humidity].
• Physical dimensions: 107 Ч 482 Ч 44.4 mm [L (depth) × W × H]; 1 RU rack-mountable
• Weight: 3 kg. (6.5 lb.)
• Safety: LVD certified.
LED Indicators
The QSC QE 16/0 Ethernet hub uses front panel LED indicators to display its operating
status: power on, link & activity status, and collision. The LEDs can function as useful
troubleshooting aids.
Troubleshooting
The table below lists the LED indicators of the
QE 16/0 , what they should display in normal
operation, and what might cause an abnormal indication.
LED Indicator Normal indication What it tells you
Power (green) On If it’s not on:
1.) Make sure the AC power cord is properly
inserted into the hub and the AC outlet.
2.) Make sure the power switch is on.
Link/Activity (green) On or flashing If the LED glows green steadily, it indicates that the
port detects the 10
BASE
T network carrier signal. If
the LED flashes, it indicates network activity—i.e.,
the port is transmitting or receiving data.
Collision (red) Off If the LED flashes, it indicates that 2 or more
network nodes have tried to access the network
simultaneously. Occasional occurrences are normal
and will not affect network performance. If the LED
flashes repeatedly or continuously, one or more
nodes may be malfunctioning, or there may be other
devices utilizing the network heavily.