NETGEAR ProSafe GS748T Hardware Installation Guide

29
GS748T Gigabit Smart Switch
Additional Troubleshooting Suggestions
If the suggestions in Troubleshooting Chart do not resolve the problem, refer to the
troubleshooting suggestions in this section.
Network Adapter Cards
Ensure the network adapter cards installed in the computers are in working condition and the
software driver has been installed.
Configuration
If problems occur after altering the network configuration, restore the original connections
and determine the problem by implementing the new changes, one step at a time. Ensure
that cable distances, repeater limits, and other physical aspects of the installation do not
exceed the Ethernet limitations.
Switch Integrity
If required, verify the integrity of the switch by resetting the switch. To reset the switch,
remove the AC power from the switch and then reapply AC power. If the problem continues,
contact NETGEAR technical support. In North America, call 1-888-NETGEAR. If you are
outside of North America, please refer to the support information card included with your
product.
Auto-Negotiation
The RJ-45 ports negotiate the correct duplex mode, speed, and flow control if the device at
the other end of the link supports auto negotiation. If the device does not support auto
negotiation, the switch determines only the speed correctly, and the duplex mode defaults to
half-duplex.

NETGEAR ProSafe GS748T Specifications

Interface

RJ-45 connectors	48
SFP GBIC module bays	4
Auto Uplink	Yes

Performance Specifications

Bandwidth	40 Gbps
Network latency	Less than 20 microseconds
Buffer memory	1, 632 KB

Power Supply

Power consumption	70 W maximum
Input voltage	100-240VAC
Frequency	50-60 Hz

Physical Specifications

Dimensions (H x W x D)	1.7 x 17.3 x 10.1 in
Weight	8.8 lbs
Weight (kg)	4.0 kg

Environmental Specifications

Operating temperature	0 to 40°C
Storage temperature	-20 to 70°C
Operating humidity	90% maximum relative humidity