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Forwarding Mode 

Store-and-forward 

Throughput 

Wire speed 

Flow Control 

Full Duplex: IEEE 802.3x 
Half Duplex: Back pressure 

Management Features 
In-Band Management 

Telnet, SNMP, or HTTP 

Out-of-Band Management 

RS-232 DB-9 console port 

Software Loading 

TFTP in-band, or XModem out-of-band 

Standards 

IEEE 802.3 Ethernet 
IEEE 802.3u Fast Ethernet 
IEEE 802.3z and 802.3ab Gigabit Ethernet 
IEEE 802.1D (Bridging) 
IEEE 802.3x full-duplex flow control 
ISO/IEC 8802-3 

Compliances 
Emissions 

Industry Canada Class A 
EN55022 (CISPR 22) Class A 
EN 61000-3-2/3 
FCC Class A 
VCCI Class A 
C-Tick - AS/NZS 3548 (1995) Class A 

Immunity 

EN 61000-4-2/3/4/5/6/8/11 

Safety 

CSA/CUS (CSA 22.2.950 & UL 1950) 
EN60950 (TÜV/GS) 
IEC 60950 (CB) 

Glossary 
10BASE-T 

IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3, 4, or 
5 UTP cable. 

100BASE-FX 

IEEE 802.3 specification for 100 Mbps Ethernet over two strands of 50/125, 62.5/ 
125 micron, or 9/125 micron core fiber cable. 

100BASE-TX 

IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of Category 5 
UTP cable. 

1000BASE-LX 

Summary of Contents for MR2228-S2C

Page 1: ...MR2228 S2C Stackable Fast Ethernet Switch Installation Guide Installation GMMMMMM...

Page 2: ...2 Installation Guide Stackable Fast Ethernet Switch with 24 10BASE T 100BASE TX RJ 45 Ports 2 1000BASE T Combination Ports RJ 45 SFP and 2 1000BASE T Stacking Ports MR2228 S2C...

Page 3: ...13 Equipment Checklist 14 Package Contents 14 Optional Rack Mounting Equipment 14 Mounting 14 Rack Mounting 15 Desktop or Shelf Mounting 16 Installing an Optional SFP Transceiver 17 Connecting Switche...

Page 4: ...28 In Band Access 28 Stack Troubleshooting 28 Appendix B Cables 29 Twisted Pair Cable and Pin Assignments 29 10BASE T 100BASE TX Pin Assignments 29 Straight Through Wiring 30 Crossover Wiring 30 1000...

Page 5: ...ng them into separate broadcast domains with IEEE 802 3Q compliant VLANs and empowers multimedia applications with multicast switching and CoS services Figure 1 1 Front and Rear Panels Switch Architec...

Page 6: ...on so you can use straight through cables for all network connections to PCs or servers or to other switches or hubs See 10BASE T 100BASE TX Pin Assignments on page B 1 Each of these ports support aut...

Page 7: ...This is the unit through which you manage the entire stack The stacking ports can also be used as normal Ethernet ports in standalone mode by pressing the Uplink button Figure 1 2 Stacking Ports Port...

Page 8: ...ork connection Flashing indicates activity Link Activity Off There is no valid link on the port Gigabit Ethernet Ports Ports 25 26 and Ports 27 28 when stacking is not implemented On Flashing Amber Po...

Page 9: ...s attached and is in backup or active mode Amber There is a fault in the redundant power unit RPU Off There is no redundant power unit currently attached Flashing Amber An initial power on state durin...

Page 10: ...t RJ 45 10 100BASE TX ports with auto MDI MDI X Unshielded UTP cable supported on all RJ 45 ports Category 3 or better for 10 Mbps connections Category 5 or better for 100 Mbps connections and Categor...

Page 11: ...filtering and forwarding Supports flow control using back pressure for half duplex and IEEE 802 3x for full duplex Broadcast storm control Management At a glance LEDs for easy troubleshooting Network...

Page 12: ...two This is known as the hop count However a switch turns the hop count back to zero So subdividing the network into smaller and more manageable segments and linking them to the larger network by mea...

Page 13: ...t collision domains the MR2228 S2C can collapse a complex network down into a single efficient bridged node increasing overall bandwidth and throughput When up to eight switch units are stacked togeth...

Page 14: ...er can be used for a high speed connection between floors in the same building and a 1000BASE LX SFP transceiver can be used to connect to other buildings in a campus setting For long haul connections...

Page 15: ...nating group and can eliminate broadcast storms in large networks This provides a more secure and cleaner network environment VLANs can be based on untagged port groups or traffic can be explicitly ta...

Page 16: ...id using flow control on a port connected to a hub unless it is actually required to solve a problem Otherwise back pressure jamming signals may degrade overall performance for the segment attached to...

Page 17: ...e sure that the unit is connected to a separate grounded power outlet that provides 100 to 240 VAC 50 to 60 Hz is within 2 44 m 8 feet of each device and is powered from an independent circuit breaker...

Page 18: ...crews for attaching the brackets to the switch Power Cord either US Continental Europe or UK RS 232 console cable This Installation Guide Management Guide Optional Rack Mounting Equipment If you plan...

Page 19: ...ment on top of a rack mounted unit Circuit Overloading Be sure that the supply circuit to the rack assembly is not overloaded Grounding Rack mounted equipment should be properly grounded Particular at...

Page 20: ...to the bottom of the first switch Figure 3 4 Attaching the Adhesive Feet 2 Set the device on a flat surface near an AC power source making sure there are at least two inches of space on all sides for...

Page 21: ...es in a Stack Figure 3 6 shows how the stack cables are connected between switches in a stack The connection uses only Category 5 Ethernet cables The switch supports a line and ring topology stacking...

Page 22: ...k cable into the Up port on the bottom unit and the other end into the Down port on the top unit Figure 3 6 Connecting Switches in a Ring topology Stack 6 Select the Master unit in the stack by pressi...

Page 23: ...in correctly 4 If you have purchased a Redundant Power Unit connect it to the switch and to an AC power source now following the instructions included with the package Connecting to the Console Port...

Page 24: ...DTE Port 2 RXD receive data 3 TXD transmit data 3 TXD transmit data 2 RXD receive data 5 SGND signal ground 5 SGND signal ground The serial port s configuration requirements are as follows Default Bau...

Page 25: ...ions Category 5 or better for 100BASE TX connections and Category 3 or better for 10BASE T connections Cabling Guidelines The RJ 45 ports on the switch support automatic MDI MDI X pinout configuration...

Page 26: ...the segment attached to the hub 3 As each connection is made the Link LED on the switch corresponding to each port will light to indicate that the connection is valid Network Wiring Connections Today...

Page 27: ...both ends WARNING This switch uses lasers to transmit signals over fiber optic cable The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal op...

Page 28: ...Ethernet Collision Domain on page 4 5 Connectivity Rules When adding hubs repeaters to your network please follow the connectivity rules listed in the manuals for these products However note that bec...

Page 29: ...550 m 7 1805ft LC Table 4 3 Maximum 1000BASE LX Gigabit Ethernet Cable Length Fiber Size Fiber Bandwidth Maximum Cable Length Connector 9 125 micron single mode fiber N A 2 m 5 km 7 ft 3 2miles LC Ta...

Page 30: ...a map of the location of all network connected equipment For each piece of equipment identify the devices to which it is connected Note the length of each cable and the maximum cable length supported...

Page 31: ...cables are properly connected Link LED is Off Verify that the switch and attached device are powered on Be sure the cable is plugged into both the switch and corresponding device If the switch is inst...

Page 32: ...entered the correct IP address Also be sure the port through which you are connecting to the switch has not been disabled If it has not been disabled then check the network cabling that runs between...

Page 33: ...strates how the pins on the RJ 45 connector are numbered Be sure to hold the connectors in the same orientation when attaching the wires to the pins 10BASE T 100BASE TX Pin Assignments Use unshielded...

Page 34: ...able is to join two ports and only one of the ports has an internal crossover MDI X the two pairs of wires must be straight through When auto negotiation is enabled for any RJ 45 port on this switch y...

Page 35: ...that the length of any twisted pair connection does not exceed 100 meters 328 feet Table B 2 1000BASE T MDI and MDI X Port Pinouts Pin MDI Signal Name MDI X Signal Name 1 Bi directional Data One Plus...

Page 36: ...rs for 1000BASE T there are basically three measures that can be applied to try and correct the problem 1 Replace any Category 5 patch cables with high performance Category 5e or Category 6 cables 2 R...

Page 37: ...Buffer Architecture 4 Mbytes Aggregate Bandwidth 8 8 Gbps Switching Database 8K MAC address entries LEDs System PWR Power Supply Diag Diagnostic RPU Redundant Power Unit Stack Port status link speed...

Page 38: ...flow control ISO IEC 8802 3 Compliances Emissions Industry Canada Class A EN55022 CISPR 22 Class A EN 61000 3 2 3 FCC Class A VCCI Class A C Tick AS NZS 3548 1995 Class A Immunity EN 61000 4 2 3 4 5 6...

Page 39: ...egment CSMA CD CSMA CD Carrier Sense Multiple Access Collision Detect is the communication method employed by Ethernet Fast Ethernet and Gigabit Ethernet End Station A workstation server or other devi...

Page 40: ...is specified in units of MHz per km which indicates the amount of bandwidth supported by the fiber for a one km distance Media Access Control MAC A portion of the networking protocol that governs acc...

Page 41: ...37 VLAN serves as a logical workgroup with no physical barriers allowing users to share information and resources as though located on the same LAN...

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