NETGEAR GS748T User Manual

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GS748T Smart Switch
To configure OUI settings:
1. To add a new OUI prefix, type the VOIP OUI prefix in the Telephony OUI(s) field,
provide a description of the prefix, and click Add. The OUI prefix must be in the format
AA:BB:CC.
2. To delete an OUI prefix from the list, select the check box next to the OUI prefix and click
Delete.
3. To modify information for an entry in the OUI list, select the check box next to the OUI prefix,
update the OUI prefix or description, and then click Apply.
4. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
5. Click Restore Defaults to restore the list to the preconfigured OUIs.
Auto-VoIP Configuration
The Auto-VoIP automatically makes sure that time-sensitive voice traffic is given priority over
data traffic on ports that have this feature enabled. Auto-VoIP checks for packets carrying the
following VoIP protocols:
• Session Initiation Protocol (SIP)
• H.323
• Skinny Client Control Protocol (SCCP)
VoIP frames that are received on ports that have the Auto-VoIP feature enabled are marked
with CoS Traffic Class 7.
Use the Auto-VoIP Configuration menu to configure the Auto-VoIP parameters. Interface
specifies all the configurable Auto-VoIP interfaces. Traffic Class displays the Traffic Class on
which the received VoIP frames are marked.
To display the Auto-VoIP Configuration page, click Switching Auto-VoIP.

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