NETGEAR GS748T User Manual

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GS748T Smart Switch
Voice VLAN Properties
To display the Voice VLAN Properties page, click Switching Voice VLAN  Basic 
Properties.
To configure Voice VLAN:
1. Fro
m the Voice VLAN Status field, enable or disable Voice VLAN on the switch. If the
switch does not handle traffic from IP phones, the status should be disabled.
2. From the V
oice VLAN ID field, select the VLAN to use for voice traffic on the switch. The
VLAN must already exist on the switch. For information about how to create VLANs, see
VLAN Configuration on p
age 86.
3. From the Class of Servi
ce field, set the CoS tag value to be reassigned for packets
received on the Voice VLAN when Remark CoS is enabled.
4. From the Remark CoS
field, select Enable or Disable to reassign the CoS tag value to
packets received on the Voice VLAN.
5. From the V
oice VLAN Aging Time field, specify the amount of time after the last IP phone’s
OUI is aged out for a specific port. The port will age out after the bridge and voice aging
time.
6. Click Canc
el to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
7. If you make any change
s to this page, click Apply to send the updated configuration to the
switch.

NETGEAR GS748T Specifications

General

Basic switching RJ-45 Ethernet ports quantity	48
MAC address table	16000 entries
Packet buffer memory	1.632 MB
Maximum data transfer rate	1 Gbit/s
Latency	20 µs
I/O ports	48 RJ-45 connectors for 10BASE-T, 100BASE-TX, and 1000BASE-T (Auto Uplink on all ports) 4 SFP slots for fiber Gigabit Ethernet modules
Dimensions (WxDxH)	440 x 260 x 43 mm
Power requirements	100-240VAC 50/60 Hz
Networking features	10BASE-T, 100BASE-TX, 1000BASE-T
Connectivity technology	Wired
Full duplex	Yes
Networking standards	IEEE 802.3x
Minimum system requirements	Category 5 network cables Network card for each PC Network software (e.g., Windows)
Mean time between failures (MTBF)	69930 h
Safety	UL listed (UL 1950)/cUL, IEC950/EN60950
LED indicators	Link, Power
Power consumption (typical)	70 W
Storage temperature (T-T)	-10 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Weight	4000 g