NETGEAR ProSafe GS748T Hardware Installation Guide

11
GS748T Gigabit Smart Switch
LED Designations
Port LEDs
The following table describes the RJ-45, combo, and dedicated SFP port LED designations.
There are two LEDs for each RJ-45 port.
Each SFP port has its own indication LED.
System LED
The following table describes the system LED designations.
LED Designation
Link/Speed/ACT LED mode for
copper ports 1 to 48:
• Off— No link established.
• Solid Green — A valid 1000 Mbps link is established.
• Blinking Green — The port is transmitting or receiving packets at
1000
Mbps.
• Solid Yellow — A valid 10/100 Mbps link is established.
• Blinking Yellow — The port is transmitting or receiving packets
at
10/100 Mbps.
If the media for ports 47 and 48 changes to SFP, the port LED for copper
ports 47 and 48 changes to off.
Link/ACT LED for SFP ports
47
to 50:
• Off — No SFP module link is established
• Solid Green — A valid 1000 Mbps SFP module link is established.
• Blinking Green — The port is transmitting or receiving packets
at
1000 Mbps.
If the media for ports 47 and 48 changes to copper, the port LED for the
SFP combo ports changes to off.
LED Designation
Power • Green — Device is powered on, run-time code is up and running
• Off — Power is not supplied to the device

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