Datasheet

Specifications
3COM
®
SUPERSTACK
®
3 SWITCH 3870 24- AND 48-PORT STACKABLE SWITCHES DATA SHEET
3Com Corporation, Corporate Headquarters 350 Campus Drive, Marlborough, MA 01752-3064
To learn more about 3Com solutions, visit www.3com.com. 3Com Corporation is publicly traded on NASDAQ
under the symbol COMS.
Copyright © 2004 3Com Corporation. All rights reserved. 3Com, the 3Com logo, NBX, and SuperStack are
registered trademarks of 3Com Corporation. All other company and product names may be trademarks of their
respective companies. While every ef
fort is made to ensur
e the information given is accurate, 3Com does not accept
liability for any errors or mistakes which may arise. Specifications and other information in this document may be
subject to change without notice.
400845-004 08/04
3Com SuperStack 3 Switch 3870, 3CR17450-91
24-Port
20-port 10/100/1000 switch with four
dual-personality 10/100/1000 or SFP ports
3Com SuperStack 3 Switch 3870, 3CR17451-91
48-P
ort
44-port 10/100 switch with four
dual-personality 10/100/1000 or SFP ports
3Com SuperStack 3 Switch 3870 3C17462
Stacking Cable
3Com SuperStack 3 Switch 3870 3C17463
Resilient Stacking Cable
SFPs (multimode
, LC connectors)
3Com 1000B
ASE-SX SFP
3CSFP91
3Com 1000BASE-LX SFP 3CSFP92
3Com 1000BASE-LH70 (70km) SFP 3CSFP97
Redundant Power
3Com SuperStack 3 Advanced 3C16071B
Redundant Power System
3Com Su
perStack 3 Ad
v
anced 3C16075
Redundant Power System,
325W Power Module Type 3
Ordering Information
All information in this section is
relevant to both models of the
3Com SuperStack 3 Switch 3870,
unless stated otherwise.
Port Capacities
24-Port:
20 10/100/1000 ports
4 dual-personality 10/100/1000
or SFP Gigabit ports
48-Port:
44 10/100/1000 ports
4 dual-personality 10/100/1000
or SFP Gigabit ports
Dimensions
Height: 45 mm (1.7 in or 1U)
Width: 440 mm (17.3 in)
Depth: 415 mm (16.4 in)
Weight: 5.0 kg (11.0 lbs)
Performance
24-port:
Bandwidth: 108 Gbps
Throughput: 80 Mpps
48-port:
Bandwidth: 156 Gbps
Throughput: 115 Mpps
Power Supply
Input voltage: 100-240 VAC
autoranging
Operating frequency: 47-63 Hz
Current Rating: 2A maximum
Heat dissipation: 717 BTU (210W)
CPU
MPC8245 (466Mhz)
32MB Flash memory
128MB Processor memory
Packet Buffer Memory
24-port: 2MB
48-port: 4MB
Environmental Requirements
Operating temperature:
0° to 40°C (32° to 104°F)
Storage temperature:
-40° to 70°C (-40° to 158°F)
Humidity:
10% to 90% non-condensing
MTBF
24-port:
31 years (268,000 hours)
48-port:
21 years (184,000 hours)
Industry Standar
ds Supported
Ethernet Protocols
IEEE 802.1p (CoS)
IEEE 802.1Q (VLANs)
IEEE 802.1w (RSTP)
IEEE 802.1X (Security)
IEEE 802.3a
b (Copper Gigabit)
IEEE 802.3ad
(Link Aggregation)
IEEE 802.3i (10B
ASE-T)
IEEE 802.3u (Fast Ethernet)
IEEE 802.3x (Flo
w Control)
IEEE 802.3z (Fiber Gigabit)
Administration Protocols
RFC 1812 (IPv4)
RFC 783 (TFTP)
RFC 768 (UDP)
RFC 791 (IP)
RFC 793 (TCP)
RFC 2474 (DiffServ)
RFC 2131 (DHCP)
RFC 2138 (Radius Authentication)
Management, including MIBs
Supported
RFC 1157 (SNMP v1/v2c)
RFC 1213 (MIB II)
RFC 1398 Ethernet MIB
RFC 1493 (Bridge MIB)
RFC 1573 (Private IF MIB)
RFC 1757 RMON MIB
RFC 2011 IP-MIB
RFC 2012 TCP-MIB
RFC 2013 UDP-MIB
RFC 2037 Entity MIB
RFC 2618 (RADIUS
Authentication Client MIB)
RFC 2665 Ethernet-MIB
RFC 2674P P-BRIDGE-MIB
RFC 2674Q Q-BRIDGE-MIB
RFC 2737 Entity MIB
RFC 2819 RMON MIB
RFC 2863 IF-MIB
IEEE8021-PAE-MIB (IEEE)
(Network Login)
Emissions / Agency Appr
ovals
CISPR 22: 1995; Class A
FCC Part 15 subpart B, Class A
EN 55022: 1998; Class A
ICES -003 Class A
AS/NZS 3548 Class A
EN 61000-3-2: 2000
EN 61000-3-3: 1995 +A1
Immunity
EN 55024: 1998
Safety Agency Certifications
UL 60950-1
IEC 60950: 2001; all national
deviations
EN 60950: 2001; all national
deviations
CSA 22.2 # 60950-00
W
arranty
3 Year hardware warranty. See
www.3com.com/warranty for
details.
90 day software warranty
Management
SNMP, Web, and Telnet support
RMON-1
RMON Groups: Statistics,
History, Alarms and Events
GUI management with 3Com
Network Supervisor and other
3Com management offerings