NETGEAR GS748T User Manual

41
GS748T Smart Switch
Click Refresh to refresh the page with the most current data from the switch.
Last Attempt Status Specifies the status of the last SNTP request or unsolicited message for both
unicast mode. If no message has been received from a server, a status of
Other is displayed. These values are appropriate for all operational modes:
• Other: None of the following enumeration values.
• Success: The SNTP operation was successful and the system time was
updated.
• Request Timed Out: A directed SNTP request timed out without
receiving a response from the SNTP server.
• Bad Date Encoded: The time provided by the SNTP server is not valid.
• Version Not Supported: The SNTP version supported by the server is
not compatible with the version supported by the client.
• Server Unsynchronized: The SNTP server is not synchronized with its
peers. This is indicated via the 'leap indicator' field on the SNTP
message.
• Server Kiss Of Death: The SNTP server indicated that no further
queries were to be sent to this server. This is indicated by a stratum field
equal to 0 in a message received from a server.
Server IP Address Specifies the IP address of the server for the last received valid packet. If no
message has been received from any server, an empty string is shown.
Address Type Specifies the address type of the SNTP Server address for the last received
valid packet.
Server Stratum Specifies the claimed stratum of the server for the last received valid packet.
Reference Clock Id Specifies the reference clock identifier of the server for the last received valid
packet.
Server Mode Specifies the mode of the server for the last received valid packet.
Unicast Sever Max Entries Specifies the maximum number of unicast server entries that can be
configured on this client.
Unicast Server Current
Entries
Specifies the number of current valid unicast server entries configured for
this client.
Field Description

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