DES-3624 Fast Ethernet Switch

Technical Specifications

	General
Standards:	IEEE 802.3 10BASE-T Ethernet IEEE 802.3u 100BASE-TX Fast Ethernet IEEE 802.3z 1000BASE Ethernet IEEE 802.1 P/Q IEEE 802.3x
Protocol:	CSMA/CD
Data Transfer Rate:	Fast Ethernet: 100Mbps (half duplex) 200Mbps (full duplex)
Topology:	Star

	General
Network Cables:	10BASE-T: 2-pair UTP Cat. 3,4,5 (100 m) EIA/TIA- 568 100-ohm STP (100 m) 100BASE-TX: 2-pair or 4-pair UTP Cat. 5 (100 m) EIA/TIA-568 100-ohm STP (100 m) 100BASE-FX 50µm and 62.5µm multi-mode fiber 1000BASE-SX: 50µm and 62.5µm multi-mode fiber 1000BASE-LX: 50µm and 62.5µm multi-mode fiber or 10µm single-mode fiber
Number of Ports:	24x or 22x 10/100 Mbps NWay ports
Media Interface Exchange:	Connectors 1x and 2x in client devices are MDI-X jacks for ports 1 and 2. Connector 1x in the master device is an MDI-X jack for port 1.

	Physical and Environmental
AC inputs:	100 - 240 VAC, 50/60 Hz (internal universal power supply)
Power Consumption:	46 watts maximum
DC fans:	2 built-in 40 x 40 mm fan
Operating Temperature:	0 to 50 degrees Celsius
Storage Temperature:	-25 to 55 degrees Celsius
Humidity:	Operating: 5% to 95% RH non-condensing; Storage: 0% to 95% RH non-condensing
Dimensions:	441 mm x 367 mm x 44 mm (1U), 19 inch rack-mount width
Weight:	5 kg
EMI:	FCC Class A, CE Class A, VCCI Class A, BSMI Class A, C-Tick Class A
Safety:	UL, CSA, TUV/GS

	Performance
Transmission Method:	Store-and-forward
RAM Buffer:	12 Mbytes per device
Filtering Address Table:	12K MAC addresses per device (optimized condition)
Packet Filtering/Forwarding Rate:	148,800 pps per port (for 100Mbps)
MAC Address Learning:	Aging time: 10 to 9999 seconds

B

RJ-45 Pin Specification

When connecting the DES-3624 Switch to another switch, a bridge or a hub, a modified crossover cable is necessary. Please review these products for matching cable pin assignment.

The following diagram and table show the standard RJ-45 receptacle/connector and their pin assignments for the switch-to-network adapter card connection, and the straight/crossover cable for the switch-to-switch/hub/bridge connection.

Figure B-1. The standard RJ-45 receptacle/connector

RJ-45 Connector pin assignment

Contact

Media Direct Interface Signal

1

Tx + (transmit)

2

Tx - (transmit)

3

Rx + (receive)

4

Not used

5

Not used

6

Rx - (receive)

7

Not used

8

Not used

Table B-1. The standard Category 3 cable, RJ-45 pin assignment

The following shows straight cable and crossover cable connection:

Figure B-2. Straight cable for Switch (uplink MDI-II port) to switch/Hub or other devices connection

Figure B-3. Crossover cable for Switch (MDI-X port) to switch/hub or other network devices (MDI-X port) connection

Sample Configuration File

This appendix provides a sample configuration file that can be used with the Update Firmware and Configuration Files screen in the console program.

The configuration file is a simple text file that you create. It has two functions: to point to the location of a file on a TFTP server, and to set the IP address, subnet mask and default gateway for the Switch. The file being uploaded can be either new runtime switching software, or a switch settings file which was previously saved on the TFTP server using the Save Settings to TFTP Server screen on the System Utilities menu. The IP address settings defined in the configuration file will override all other IP settings, even those defined in the settings file being uploaded. This enables the settings from one switch to be uploaded to another switch without their IP settings being the same (and thus coming into conflict).

Commands:

Code_type – This command tells the Switch the type of file you wish to upload to the Switch. Possible Code_types are PROM, RUNTIME, or CONFIG. This should always be the first setting.

PROM – PROM update file.

RUNTIME – Switching software update file.

CONFIG – Image file of switch settings created by the settings backup procedure.

Image_file – This command tells the switch the complete path and filename for the file to be loaded into the switch. For example, “e:\3624\3624prom.tfp”. Make sure double-quotes are used as in the example file below.

Ip_addr – This is the IP address that will be assigned to the switch. This command is included for downloading a configuration settings file to another switch. The IP address defined in this file will override the IP address in the configuration settings file, thus the switch you are downloading to can have a different IP address than the one that created the configuration settings file. An example of an IP address is: 10.12.19.102.

Subnet_mask – This is the subnet mask that will be assigned to the switch. An example of a subnet mask is: 255.128.0.0.

Default_gateway – This is the default gateway IP that will be assigned to the switch. An example of a default Gateway IP is: 10.254.254.253.

# – Remark. When placed as the first character on a line, the entire line will be ignored by the switch. This allows items to be labeled, or unused commands to remain in the file so that the syntax will not be forgotten.

Notes about the Configuration File:

This configuration file can only contain 4 settings: Code_type, Ip_addr, Subnet_mask and Default_gateway.

Each command can only appear once in the configuration file.

If both the Firmware Update and Use Config File options are enabled, the Firmware Update command will take precedence and only the firmware file will be uploaded to the switch.

The Config image file, which contains all configuration settings and was created by the switch is prefixed with the version number of the runtime software to help with file management.

# Sample Config File

Code_type=PROM

Image_file="e:\3624\3624prom.tfp"

# specify IP address

Ip_addr = 10.12.19.102

# specify subnet mask

Subnet_mask = 255.128.0.0

# specify default gateway

Default_gateway = 10.254.254.253

Runtime Software Default Settings

Load Mode	Network
Configuration update	Disable
Firmware update	Disable
Out-of-band baud rate	9600
Rs232 mode	Console
Ip address	0.0.0.0
Subnet mask	0.0.0.0
Default router	0.0.0.0
Bootp service	Enable
TFTP server IP address	0.0.0.0
IGMP time out	300 secs
IGMP snooping state	Disable
Partition mode	Enable
Address table lock	Disable
Device HOL	Enable
Port HOL	Enable
Console time out	15 min
User name	Blank
Password	Blank
Device STP	Disable
Port STP	Enable
Port enable	Enable
Bridge max age	20 secs
Bridge hello time	2 sec
Bridge forward delay	15 sec
Bridge priority	32768
Port STP cost	19 (Gigabit=4)
Port STP priority	128
Forwarding MAC address aging time	300 secs
Address lookup mode	Level 1
NWay	Enable`
Flow control	Enable
Backpressure	Disable
Port lock	Disable
Port priority	Default
Broadcast storm rising action	Do nothing
Broadcast storm falling action	Do nothing
Broadcast storm rising threshold	Default
Broadcast storm falling threshold	Default
Community string	“public”, “private”
VLAN mode	Disable
SNMP VLAN(802.1Q)	1
Default port VID	1
Ingress rule checking	Disable
Mirror src port <->target port	1ß 2
Mirror	Disable

Index

Offices

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Answers to the following questions help us to support your product:
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o Home o Office o Travel o Company Business o Home Business o Personal Use

2. How many employees work at installation site?

o 1 employee o 2-9 o 10-49 o 50-99 o 100-499 o 500-999 o 1000 or more

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RJ-45 Connector pin assignment
Contact	Media Direct Interface Signal
1	Tx + (transmit)
2	Tx - (transmit)
3	Rx + (receive)
4	Not used
5	Not used
6	Rx - (receive)
7	Not used
8	Not used