Cisco 837 Broadband Router - CISCO837K9

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Product Overview

The Cisco 837 routers are asymmeric digital subscriber line (ADSL)-over-plain old telephone service (POTS) routing devices. They have an integrated 4-port Ethernet switch for the LAN and an ADSL physical interface for the WAN, allowing the routers to connect a corporate telecommuter or small office to corporate LANs and the Internet.

The routers support high-speed encryption, the 10/100BASE-T switch, and dial backup functionality via the auxiliary console port. The autosensing function in these routers eliminates the need for a crossover cable and allows the router to detect medium dependent interface in normal mode (MDI) or medium dependent interface in crossover mode (MDIX) in any other PC or hub with a straight-through cable or a crossover cable. The routers are capable of bridging and multiprotocol routing between LAN and WAN ports.

The dial backup feature allows the user to connect an analog modem to the console port as a backup link to the WAN in case the ADSL service goes down. This feature gives the Cisco 837 routers a high level of performance and security.

The Cisco 837 router is designed with both hardware-based and software-based encryption.


Manufacturer Cisco
Mfg Part# CISCO837K9
SKU 10339194
UPC 746320796062
UPC 14 00746320796062
Management Port Yes
Total Number of Ports 5
Product Type Router
Manufacturer Part Number CISCO837-K9
Manufacturer Cisco Systems, Inc
Product Model 837
Product Name 837 Broadband Router
Product Series 800
Brand Name Cisco
Broadband Transmission Technology ADSL
Carrier Supported DSL
Package Contents Cisco 837 ADSL RouterYellow Ethernet cableDesktop power supplyBlack power cordProduct documentation and Cisco 800 and SOHO Series Product Documentation CD-ROMLight blue console cable (RJ-45-to-DB-9)
Network Technology 10/100Base-TX
Ethernet Technology Fast Ethernet
Weight (Approximate) 1.50 lb
Form Factor Wall Mountable / Desktop
Height 2"
Width 9.7"
Depth 8.5"
Power Source AC Adapter
Limited Warranty 1 Year
Tech Specs
Dimensions 2" Height x 9.70" Width x 8.50" Depth
Weight (Approximate) 1.50 lb
Form Factor Wall-mountable / Desktop
Input Voltage 110 V AC / 220 V AC
Power Source AC Adapter
Frequency 50 Hz or 60 Hz
Power Consumption 6 W to 10 W Maximum
Input Voltage Range 100 V AC to 250 V AC
Processor Motorola RISC
Protocols IGRP / PPPoE / PPPoA / RIP v2.0 / VPN Pass-through
Management SNMP Telnet console port Syslog Trivial File Transfer Protocol (TFTP) client and server Cisco Service Assurance Agent (SAA) Out-of-band management through virtual AUX port
Security Features DES 3DES Radius PAP CHAP
Operating System Cisco 837 Series IOS IP/FW 3DES
Standard Warranty 1 Year Limited
Controls Power Switch
Status Indicators PWR_OK ADSL_CD ADSL_RxD ADSL_TxD E1 Status E2 Status E3 Status E4 Status LAN_RxD LAN_TxD
Number of Ports 5
Fast Ethernet Port Yes
DSL Port Yes
Altitude 0 ft to 10000 ft Operating
Humidity 10% to 85% Non-condensing Relative Humidity Operating
Temperature 32°F (0°C) to 104°F (40°C) Operating / -4°F (-20°C) to 149°F (65°C) Non-operating
Product Type Router Appliance
Manufacturer Part Number CISCO837-K9
Manufacturer Website Address
Manufacturer Cisco Systems, Inc
Product Name 837 Broadband Router
Product Series 800
Brand Name Cisco
Connectivity Media Twisted Pair
Broadband Transmission Speed 8 Mbps
Broadband Transmission Technology ADSL
Flash Memory 12 MB
Standard Memory 32 MB
Memory Technology DRAM
Additional Information Cisco SDM CRWS Dial backup with external modem through virtual AUX port NAT many-to-one (PAT) NAT many-to-many (multi-NAT) H.323 support with NAT NetMeeting V.2.10/1 and 3.01 IP Control Protocol (IPCP) address and subnet negotiation Dynamic Host Control Protocol (DHCP) client and server DHCP relay DHCP client address negotiation
Package Contents Cisco 837 ADSL Router Yellow Ethernet cable Desktop power supply Black power cord Product documentation and Cisco 800 and SOHO Series Product Documentation CD-ROM Light blue console cable (RJ-45-to-DB-9)
Compatibility Alcatel ASAM 1000 Alcatel 7300 Lucent Stinger ECI: ADI 918 ECI: ADI 930 Siemens XpressLink 2.0 Siemens XpressLink 2.1
Certifications & Standards Safety: UL 1950/CSA 950-95: Third Edition IEC 950: Second Edition with Amendments 1, 2, 3, and 4 EN60950: 1992 with Amendments 1, 2, 3, and 4 CS-03, Canadian Telecom Requirements FCC Part 68 U.S. Telecom Requirements AS/NZS 3260: 1996 with Amendments 1, 2, 3, and 4 ETSI 300-047 TS 001 with Amendment 1 EMI AS/NRZ 3548: 1992 Class B CFR 47 Part 15 Class B EN60555-2 Class B EN55022 Class B VCCI Class II ICES-003, Issue 2, Class B, April 1997S IEC 1000-3-2 Immunity: IEC 1000-4-2 (EN61000-4-2) IEC 1000-4-3 (ENV50140) IEC 1000-4-4 (EN61000-4-4)
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