
Technical Specifications
• Network Protocol and Standards Compatibility:
-IEEE 802.3 10BASE-T
-IEEE 802.3u 100BASE-TX
-IEEE 802.3ab 1000BASE-T
-IEEE 802.3x Flow Control
• Management Specifications:
-IEEE 802.1Q Static VLAN (Up to 512)
-IEEE 802.1p Class of Service (CoS)
-IEEE 802.3ad Link Aggregation Control
Protocol (LACP)
-IEEE 802.1D SpanningTree Protocol
-IEEE 802.1w Rapid SpanningTree
-IEEE 802.1s Multiple SpanningTree
-IEEE 802.1x Port Access Authentication
-RFC 768 UDP
-RFC 854-859 Telnet
-IGMP Snooping Support
-Port Mirroring Support
-RFC 951 BootP
-RFC 1157, 1902, 1903, 1904, 1905, 1906,
1907 SNMP v1, v2c, v3
-RFC 1213 MIB II-RFC 1215 SNMP Traps
-RFC 1493 Bridge MIB
-RFC 1534 DHCP and BootP Interoperation
-RFC 1643 Ethernet Interface MIB
-RFC 1757 RMON groups 1,2,3, and 9
-RFC 2131, 2132 DHCP and BootP
-RFC 2865 RADIUS-RFC 2998 DiffServ
-RFC 3046 DHCP Relay
-Broadcast Storm Protection
-Private Enterprise MIB
-Broadcast Storm Protection
-Weighted Round Robin (WRR)
Queuing Technology
-RFC 2030 Simple NetworkTime Protocol (SNTP)
-SYSLOG
• User Interfaces:
-Command Line Interface (CLI) via console port
-Web-based management via embedded HTTP
server protected with Secured Sockets Layer
(SSLv3) or Transport Layer Security (TLS v1)
-Telnet remote login (5 sessions) securable with
Secured Shell (SSH v1.5, v2)
• Physical Interfaces:
-48 RJ-45 connectors for 10BASE-T, 100BASE-TX,
and 1000BASE-T (Auto Uplink and auto-negotiate
on all ports)
-4 SFP connectors for fiber connection (shared with
the last four copper ports)
-RS-232 Console Port
•LEDs:
-Per port: Speed, Link, Activity
-Per device: Power, Fan Status
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-Layer 2 Support Pack P3L21-1 year
-Layer 2 Support Pack P3L23-3 years
GSM7248 ProSafe™ 48 Port Gigabit
L2 Managed Switch
• Performance Specifications:
-Forwarding modes: Store-and-forward
-Bandwidth: 96 Gbps (non-blocking)
-Switch latency: Less than 20 microseconds for 64-byte frames
-System memory: 64 MB
-Packet buffer memory: 122 KB embedded memory per port
-Code Storage (Flash): 8 MB
-Address database size: 8,000 media access control
(MAC) addresses
-Addressing: 48-bit MAC address
-Number of VLANs: 512 (1-4069)
-Number of trunks: 6
-Number of Queues: 4
-Acoustic noise: (ANSI-S10.12) 47 dB
-Heat Dissipation: 28.24 Btu/hr
-Mean Time Between Failure (MTBF): 57,800 hours
(~ 6.5 years)
• Electrical Specifications:
-Power Consumption: 90 W maximum
-100-240VAC/50-60 Hz universal inputs
• Physical Specifications:
-Dimensions: H: 1.7" (43 mm), W: 17.32" (440 mm),
D: 10.12" (257 mm)
-Weight: 9.24 lb (4.2 kg)
• Environmental Specifications:
-Operating temperature: 0 to 40° C (32 to 104 F)
-Storage temperature: -20 to 70°C (-4 to 158 F)
-Operating humidity: 90% maximum relative humidity,
non-condensing
-Storage humidity: 95% maximum relative humidity,
non-condensing
-Operating altitude: 10,000 ft (3,000 m) maximum
-Storage altitude: 10,000 ft (3,000 m) maximum
• Electromagnetic Emissions:
-CE mark, commercial
-FCC Part 15 Class A
-VCCI Class A-EN 55022 (CISPR 22), Class A
-C-Tick
• Electromagnetic Immunity:
-EN 50082-1
-EN 55024
• Safety:
-CE mark, commercial
-CSA certified (CSA 22.2 #950)
-UL listed (UL 1950)/CUL IEC950/EN60950
• Warranty:
-NETGEAR 5-year warranty
Package Contents
-GSM7248 ProSafe 48 Port Gigabit L2 Managed Switch
-Power cable
-Null modem cable
-Rubber footpads for tabletop installation
-Rackmount kit
-Installation guide
-Resource CD
-Warranty/Support information card
4500 Great America Parkway
Santa Clara, CA 95054 USA
Phone: 1-888-NETGEAR
www.NETGEAR.com
©2005 NETGEAR, Inc. NETGEAR®,
Everybody's connecting®, the Netgear
logo, Auto Uplink, ProSafe, Smart Wizard
and RangeMax are trademarks or regis-
tered trademarks of NETGEAR, Inc. in the
United States and/or other countries.
Microsoft, Windows, and the Windows
logo are trademarks or registered
trademarks of Microsoft Corporation in
the United States and/or other countries.
Other brand and product names are
trademarks or registered trademarks of
their respective holders. Information is
subject to change without notice.
All rights reserved.
* Free basic installation support provided
for 90 days from date of purchase.
Advanced product features and
configurations are not included in free
basic installation support; optional
premium support available.
D-GSM7248-0